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Andou M, Sawada M, Hamasaki Y, Shirane A. Minimally Invasive Repair for Urinary Tract Fistula. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sawada M, Andou M, Hamasaki Y, Shirane A. Assistants Improve the Surgical Quality! Safer and Quicker—The Roles and the Techniques of 1st Assistant Surgeon in Laparoscopic Surgery. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shirane A, Hamasaki Y, Andou M, Sawada M. Concurrent ART and Laparoscopic Surgery for Intestinal Endometriosis. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shirane A, Andou M, Sawada M, Hamasaki Y. Laparoscopic Needle Handling. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Andou M, Sawada M, Hamasaki Y, Shirane A. Vagino-Laparoscopic Approach for Pelvic Organ Prolapse. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Saito Y, Hayashi S, Yamauchi A, Okamoto M, Kaminaga T, Hamasaki Y, Hatamochi A, Igawa K. Tracing the origins of active amide group-positive drug-induced pemphigus vulgaris along the Silk Road: a case report of candesartan-induced pemphigus vulgaris and review of nonthiol drug-induced pemphigus. Int J Dermatol 2018; 57:e131-e134. [DOI: 10.1111/ijd.14108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 04/19/2018] [Accepted: 06/06/2018] [Indexed: 11/27/2022]
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Hayashi S, Hamasaki Y, Hatamochi A, Igawa K. 697 Effects of Gadodiamide on cell proliferation and collagen production in cultured human dermal fibroblasts. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Itabashi Y, Ohashi Y, Muramatsu M, Kawamura T, Hyodo Y, Hamasaki Y, Shishido S, Sakai K, Maemura T, Morita M, Aikawa A. Association Between the Fertile Period and Live Birth Post-Kidney Transplantation: A Retrospective Single-Center Cohort Study. Transplant Proc 2017; 49:1068-1072. [PMID: 28583529 DOI: 10.1016/j.transproceed.2017.03.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Despite restoration of fertility after kidney transplantation, the benefit is limited in female kidney recipients. Our objective is to determine the reasons for this discrepancy. METHODS We evaluated 315 women who underwent kidney transplantation from 1983 to 2015 (a median of age at transplantation [10th-90th percentile] of 32 years [7-55 years]); 230 recipients between the ages of 15 to 49 years old as of March 2016 were observed. RESULTS We experienced 10 abortions and 21 live births from our 23 recipients and 2 abortions and 7 live births in 7 recipients from other transplant center. The live birth rate was 8.9 per 1000 female transplant recipients of childbearing age. Seven recipients received either treatments of artificial insemination or in vitro fertilization. Average age at pregnancy was 33.2 ± 3.2 years old, and the fertile period post-transplantation was longer in recipients with live births than those without live births (14.1 ± 7.1 vs 9.9 ± 7.3 years, P < .05). In 42.9% of recipients with live birth, pregnancy-induced hypertension was observed in the last trimester. The gestational age and the average birth weight were 32.8 ± 5.0 months and 2184 ± 632 g, respectively. During follow-up of 14.5 years, there was one case of graft loss, which is a rate of 2.5 per 1000 female recipients. CONCLUSION Although pregnancy complications are often observed in kidney recipients, graft survival is less influenced by pregnancy. Importantly, kidney disease at childbearing age disrupts pregnancy even after kidney transplantation.
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Hayashi S, Hamasaki Y, Hatamochi A. The anti-inflammatory effects of potassium iodide in SDS-induced inflammatory murine skin. J Dermatol Sci 2017. [DOI: 10.1016/j.jdermsci.2017.02.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hayashi S, Shimaoka Y, Hamasaki Y, Hatamochi A. Palmoplantar pustulosis and pustulotic arthro-osteitis treatment with potassium iodide and tetracycline, a novel remedy with an old drug: a review of 25 patients. Int J Dermatol 2017; 56:889-893. [DOI: 10.1111/ijd.13608] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 02/15/2017] [Accepted: 02/22/2017] [Indexed: 12/31/2022]
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Takahashi Y, Shishido S, Hyodo Y, Yonekura T, Nihei H, Itabashi Y, Muramatsu M, Hamasaki Y, Kawamura T, Aikawa A. Pharmacokinetic Profile of Twice- and Once-daily Tacrolimus in Pediatric Kidney Transplant Recipients. Transplant Proc 2017; 49:37-40. [PMID: 28104153 DOI: 10.1016/j.transproceed.2016.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND The aim of this study was to assess the differences in pharmacokinetic (PK) profiles after the 1:1 ratio-based conversion from a twice-daily to a once-daily tacrolimus formulation (TD-TAC and OD-TAC, respectively) in pediatric recipients of kidney transplants. METHODS TD-TAC was initially administered to 29 pediatric patients who underwent kidney transplantations between April 2010 and September 2015 and were then subsequently switched to OD-TAC. The switch dose ratio was 1:1, and the 24-hour complete PK parameter assessment was performed before and after the regimen was changed from TD-TAC to OD-TAC. RESULTS The mean total daily dose at baseline was 5.5 ± 2.9 mg (0.18 ± 0.10 mg/kg body weight). Consecutive PK studies revealed no significant difference in the mean time to achieve maximum concentrations and the area under the concentration-time curve from 0 to 24 hours (AUC0-24) of both drug formulations. However, the mean trough concentration (Cmin) and the maximum concentration of OD-TAC were 22% and 6% lower and higher, respectively, than those of TD-TAC. Therefore, a better correlation was observed between the AUC0-24 and Cmin of OD-TAC than between those of TD-TAC. CONCLUSIONS After the change from TD-TAC to OD-TAC, the AUC0-24 values were equivalent despite a 22% reduction in Cmin. Cmin may therefore be an excellent predictor in the therapeutic drug monitoring of OD-TAC because of its superior correlation with AUC0-24.
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Hayashi S, Kaminaga T, Tantcheva-Poor I, Hamasaki Y, Hatamochi A. Patient with extensive Mongolian spots, nevus flammeus and nevus vascularis mixtus: A novel case of phacomatosis pigmentovascularis. J Dermatol 2015; 43:225-6. [DOI: 10.1111/1346-8138.13155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hashimoto J, Hamasaki Y, Yanagisawa T, Sekine T, Aikawa A, Shishido S. Successful Kidney Transplantation in Epstein Syndrome With Antiplatelet Antibodies and Donor-specific Antibodies: A Case Report. Transplant Proc 2015; 47:2541-3. [DOI: 10.1016/j.transproceed.2015.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 09/02/2015] [Indexed: 11/30/2022]
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Hamasaki Y. Indicators for Risk of Schizophrenia in Children. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31342-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Shimizu K, Ogawa F, Hamasaki Y, Murota H, Katayama I. A Case of Bullous Pemphigoid Arising in Juvenile Hyaline Fibromatosis with Oral Squamous Cell Carcinoma. J Dermatol 2014; 32:650-3. [PMID: 16334866 DOI: 10.1111/j.1346-8138.2005.tb00816.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We experienced a case of bullous pemphigoid (BP) arising in juvenile hyaline fibromatosis (JHF) associated with oral squamous cell carcinoma (SCC). JHF is a very rare disease inherited in an autosomal recessive fashion. Skin-colored, elastic hard nodules up to 10 cm in size were scattered mainly on the trunk and scalp. Gingival hypertrophy and an ill-defined mass with an irregular surface on the hard palate were noticed. A skin biopsy and a gingival biopsy confirmed the diagnosis of JFH and oral SCC, respectively. The patient was receiving anti-cancer drugs for the treatment of oral SCC and the treatment was successful. In the meantime, bean to nail sized bullas were noticed on the hands and feet. Histological examination, immunofluorescence method and ELISA confirmed the diagnosis of BP. The pathophysiological mechanisms are discussed in the present case.
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MESH Headings
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Carcinoma, Squamous Cell/diagnosis
- Carcinoma, Squamous Cell/drug therapy
- Carcinoma, Squamous Cell/pathology
- Consanguinity
- Diagnosis, Differential
- Female
- Fibromatosis, Gingival/diagnosis
- Fibromatosis, Gingival/drug therapy
- Fibromatosis, Gingival/pathology
- Gingival Neoplasms/diagnosis
- Gingival Neoplasms/drug therapy
- Gingival Neoplasms/pathology
- Humans
- Middle Aged
- Pemphigoid, Bullous/diagnosis
- Pemphigoid, Bullous/drug therapy
- Pemphigoid, Bullous/pathology
- Prednisolone/administration & dosage
- Scalp
- Thorax
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Ikeda H, Aida J, Hatamochi A, Hamasaki Y, Izumiyama-Shimomura N, Nakamura KI, Ishikawa N, Poon SS, Fujiwara M, Tomita KI, Hiraishi N, Kuroiwa M, Matsuura M, Sanada Y, Kawano Y, Arai T, Takubo K. Quantitative fluorescence in situ hybridization measurement of telomere length in skin with/without sun exposure or actinic keratosis. Hum Pathol 2013; 45:473-80. [PMID: 24411948 DOI: 10.1016/j.humpath.2013.10.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/02/2013] [Accepted: 10/04/2013] [Indexed: 11/28/2022]
Abstract
Chromosomal and genomic instability due to telomere dysfunction is known to play an important role in carcinogenesis. To study telomere shortening in the epidermis surrounding actinic keratosis, we measured telomere lengths of basal, parabasal, and suprabasal cells in epidermis with actinic keratosis (actinic keratosis group, n = 18) and without actinic keratosis (sun-protected, n = 15, and sun-exposed, n = 13 groups) and in actinic keratosis itself as well as in dermal fibroblasts in the 3 groups, using quantitative fluorescence in situ hybridization. Among the 3 cell types, telomeres of basal cells were not always the longest, suggesting that tissue stem cells are not necessarily located among basal cells. Telomeres of basal cells in the sun-exposed group were shorter than those in the sun-protected group. Telomeres in the background of actinic keratosis and in actinic keratosis itself and those of fibroblasts in actinic keratosis were significantly shorter than those in the controls. Our findings demonstrate that sun exposure induces telomere shortening and that actinic keratosis arises from epidermis with shorter telomeres despite the absence of any histologic atypia.
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Hayashi S, Utani A, Iwanaga A, Yagi Y, Morisaki H, Morisaki T, Hamasaki Y, Hatamochi A. Co-existence of mutations in the FBN1 gene and the ABCC6 gene in a patient with Marfan syndrome associated with pseudoxanthoma elasticum. J Dermatol Sci 2013; 72:325-7. [PMID: 23978319 DOI: 10.1016/j.jdermsci.2013.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 07/18/2013] [Accepted: 07/24/2013] [Indexed: 11/15/2022]
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Okamoto S, Sakama T, Nakamura S, Niimura F, Sahin S, Ertan P, Evrengul H, Horasan G, Dede B, Berdeli A, Yildiz N, Cicek Deniz N, Asadov R, Yucelten D, Alpay H, Prado G, Schoeneman M, Mongia A, Paudyal B, Feygina V, Norin A, Hochman D, Tawadrous H, Bansilal V, Topaloglu R, Gulhan B, Bilginer Y, Celebi Tayfur A, Yildiz C, Ozaltin F, Duzova A, Ozen S, Aki T, Besbas N, Komaki F, Hamasaki Y, Ishikura K, Hamada R, Sakai T, Hataya H, Ogata K, Fukuzawa R, Ando T, Honda M, Malke A, Silska-Dittmar M, Soltysiak J, Blumczynski A, Ostalska-Nowicka D, Zachwieja J, Tabel Y, Oncul M, Elmas A, Kavaz A, Ozcakar ZB, Bulum B, Ekim M, Yalcinkaya F, Prikhodina L, Turpitko O, Dlin V, Gheith O, Alotaibi T, Nampoory N, Mosaad A, Halim M, Saied T, Abou Ateya H, Adel H, Mozarei I, Neir P, Hamasaki Y, Uemura O, Ishikura K, Ito S, Wada N, Hattori M, Ohashi Y, Tanaka R, Nakanishi K, Kaneko T, Honda M, Golovachova V, Odinets Y, Laszki-Szczachor K, Polak-Jonkisz D, Sobieszczanska M, Rusiecki L, Zwolinska D, Ninchoji T, Kaitoh H, Matsunoshita N, Nozu K, Nakanishi K, Yoshikawa N, Iijima K, Maglalang-Reed OM, Elises JS, Zamora MNV, Pasco P, Arejola-Tan A, Alparslan C, Dogan SM, Kose E, Elmas C, Kilinc S, Arslan N, Kebabci E, Karaca C, Yavascan O, Aksu N, Minson S, Munoz M, Vergara I, Mraz M, Vaughan R, Rees L, Olsburgh J, Calder F, Shroff R, Zaicova N, Kavaz A, Ozcakar ZB, Bulum B, Ekim M, Yalcinkaya F, Lavrenchuk O, Viktoria D, Savchenko V, Bagdasarova I, Doyon A, Bayazit A, Canpolat N, Duzova A, Kracht D, Litwin M, Ranchin B, Shroff R, Sozeri B, Wuhl E, Zeller R, Melk A, Querfeld U, Schaefer F, Sinha MD, Turner C, Booth CJ, Goldsmith DJA, Simpson JM. Paediatric nephrology - A. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tsukimori K, Hamasaki Y, Morihana E, Fusazaki N, Fujita Y, Takahata Y, Oda S, Kado H. Aortic regurgitation associated with critical aortic stenosis in a fetus. Pediatr Cardiol 2013; 34:1020-3. [PMID: 22580775 DOI: 10.1007/s00246-012-0344-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 04/25/2012] [Indexed: 11/28/2022]
Abstract
Aortic regurgitation in association with aortic stenosis is rare in the fetus. Findings have shown that severe aortic regurgitation is worsened by the increase in systemic vascular resistance after birth, resulting in low cardiac output, hypoxemia, and neonatal death. This report describes a unique case of aortic regurgitation with aortic stenosis, severe mitral regurgitation, retrograde flow in the aortic arch, and an enormous left atrium with a restrictive foramen ovale in a fetus. In this case, aortic regurgitation was diminished immediately after birth, indicating that spontaneous improvement in aortic regurgitation after birth should be taken into account when the final prognosis is predicted.
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Shimaoka Y, Hayashi S, Hamasaki Y, Terui K, Hatamochi A. Patient with the vascular type of Ehlers-Danlos syndrome, with a novel point-mutation in the COL3A1 gene. J Dermatol 2013; 40:226-8. [PMID: 23293852 DOI: 10.1111/1346-8138.12057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Taniguchi K, Yamamoto S, Hitomi E, Inada Y, Suyama Y, Sugioka T, Hamasaki Y. Interleukin 33 is induced by tumor necrosis factor alpha and interferon gamma in keratinocytes and contributes to allergic contact dermatitis. J Investig Allergol Clin Immunol 2013; 23:428-434. [PMID: 24459820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND Interleukin (IL) 33, a novel member of the IL-1 family, is produced mainly by epithelial cells and endothelial cells in response to various types of stress, including necrosis. The effects of IL-33 on the immune cells involved in allergic contact dermatitis have recently been revealed in vitro. However, in vivo, the induction mechanism and function of IL-33 are not fully understood. OBJECTIVES Our objectives were to investigate induction of IL-33 in keratinocytes and to evaluate the functions of IL-33 and its inducers in a murine model of allergic contact dermatitis. MATERIAL AND METHODS KERTr cells, a human keratinocyte cell line, were cultured with various cytokines, including tumor necrosis factor (TNF) alpha and interferon (IFN) gamma. IL-33 expression was detected using quantitative reverse transcriptase polymerase chain reaction, immunocytochemistry, and Western blotting. The functions of IL-33, TNF-a, and IFN-y in allergic contact dermatitis were evaluated using a murine model. RESULTS TNF-alpha and IFN-gamma induced expression of IL-33 mRNA and protein in KERTr cells. Blockade of IL-33 attenuated swelling in the ears of the experimental mice. Similar effects were noted for blockade of TNF-alpha and IFN-gamma in these mice. CONCLUSIONS TNF-alpha and IFN-gamma induce expression of IL-33, and IL-33 produced by keratinocytes contributes to allergic contact dermatitis. Blockade of IL-33, TNF-alpha, and IFN-gamma could represent novel and potent strategies to treat allergic contact dermatitis.
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Hamasaki Y. 2161 – The quite early detection of schizophrenic children. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77040-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Hanafusa N, Hamasaki Y, Kawarazaki H, Kido R, Shibagaki Y, Ishikawa A, Enomoto Y, Fujita T, Noiri E, Nangaku M. O-14 THE CHOICE OF MODALITY FOR ANTIBODY REMOVAL IN ABO-INCOMPATIBLE LIVING DONOR RENAL TRANSPLANTATION. Transfus Apher Sci 2012. [DOI: 10.1016/s1473-0502(12)70015-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Nishi M, Eguchi-Ishimae M, Wu Z, Gao W, Iwabuki H, Kawakami S, Tauchi H, Inukai T, Sugita K, Hamasaki Y, Ishii E, Eguchi M. Suppression of the let-7b microRNA pathway by DNA hypermethylation in infant acute lymphoblastic leukemia with MLL gene rearrangements. Leukemia 2012; 27:389-97. [DOI: 10.1038/leu.2012.242] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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50
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Hayashi S, Ikeda M, Kitamura Y, Hamasaki Y, Hatamochi A. UVA irradiation following treatment with topical 8-methoxypsoralen improves bleomycin-induced scleroderma in a mouse model, by reducing the collagen content and collagen gene expression levels in the skin. J Dermatol Sci 2012; 67:20-5. [PMID: 22486844 DOI: 10.1016/j.jdermsci.2012.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 02/20/2012] [Accepted: 02/24/2012] [Indexed: 11/15/2022]
Abstract
BACKGROUND Recent studies have demonstrated that systemic or topical PUVA therapy, i.e., ultraviolet A (UVA) irradiation following treatment with 8-methoxypsoralen (8-MOP), is effective against the sclerotic skin lesions in systemic sclerosis. However, the mechanisms still remain unknown. OBJECTIVE To clarify the mechanisms of this therapy, we created a mouse model of bleomycin (BLM) injection-induced scleroderma and evaluated the effects of PUVA on the fibrotic lesions of scleroderma in this mouse model. METHODS BLM was injected subcutaneously once a day into the mice for 24 days. During the injection period, one group of mice was irradiated with UVA following local application of 8-MOP. Control groups were also set up, which were injected with phosphate-buffered saline, instead of BLM. Skin tissue samples examined histopathologically changes, measured of the content of hydroxyproline, and checked for the expression of genes encoding type I collagen, type III collagen, and transforming growth factor-β1 (TGF-β1). RESULTS The mouse models of scleroderma was found to show an increase in the density of the collagen fibers and thickening of the dermis and increased expressions of type I collagen, type III collagen, and TGF-β1. However, the combination of BLM treatment and topical PUVA treatment mice appeared reduced the dermal thickness and hydroxyproline content, down-regulation of expressions of the type I and type III collagen genes was observed while the expression of the TGF-β1 gene remained unchanged. CONCLUSION These results suggest that the effectiveness of topical PUVA therapy is attributable to the down-regulation of the expressions of the collagen genes by this treatment. The results additionally suggest that is not mediated by down-regulated expression of the TGF-β1.
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