Humans ; Janus Kinase Inhibitors/therapeutic use* ; Vitiligo/drug therapy* ; Psoriasis ; Protein Kinase Inhibitors

Several chemical compounds can restore pigmentation in vitiligo through mechanisms that vary according to disease etiology. In the present study, we investigated the melanogenic activity of six structurally distinct compounds, namely, scopoletin, kaempferol, chrysin, vitamin D, piperine, and 6-benzylaminopurine. We determined their effectiveness, toxicity, and mechanism of action for stimulating pigmentation in B16F10 melanoma cells and in a zebrafish model. The melanogenic activity of 6-benzylaminopurine, the compound identified as the most potent, was further verified by measuring green fluorescent protein concentration in tyrp1 a: eGFP (tyrosinase-related protein 1) zebrafish and mitfa: eGFP (microphthalmia associated transcription factor) zebrafish and antioxidative activity. All the tested compounds were found to enhance melanogenesis responses both in vivo and in vitro at their respective optimal concentration by increasing melanin content and expression of TYR and MITF. 6-Benzyamino-purine showed the strongest re-pigmentation action at a concentration of 20 μmol·Lin vivo and 100 μmol·Lin vitro, and up-regulated the strong fluorescence expression of green fluorescent protein in tyrp1a: eGFP and mitfa: eGFP zebrafish in vitro. However, its relative anti-oxidative activity was found to be very low. Overall, our results indicated that 6-benzylaminopurine stimulated pigmentation through a direct mechanism, by increasing melanin content via positive regulation of tyrosinase activity in vitro, as well as up-regulating the expression of the green fluorescent protein in transgenic zebrafish in vivo.
Alkaloids ; chemistry ; pharmacology ; Animals ; Benzodioxoles ; chemistry ; pharmacology ; Benzyl Compounds ; chemistry ; pharmacology ; Cholecalciferol ; chemistry ; pharmacology ; Flavonoids ; chemistry ; pharmacology ; Humans ; Kaempferols ; chemistry ; pharmacology ; Melanins ; genetics ; metabolism ; Monophenol Monooxygenase ; genetics ; metabolism ; Pigmentation ; drug effects ; Piperidines ; chemistry ; pharmacology ; Polyunsaturated Alkamides ; chemistry ; pharmacology ; Purines ; chemistry ; pharmacology ; Scopoletin ; chemistry ; pharmacology ; Vitiligo ; drug therapy ; enzymology ; metabolism ; Zebrafish

Alopecia ; chemically induced ; diagnosis ; Antirheumatic Agents ; administration & dosage ; adverse effects ; Arthritis, Rheumatoid ; drug therapy ; Biopsy ; methods ; Cyclosporine ; administration & dosage ; Dermatologic Agents ; administration & dosage ; Drug Hypersensitivity Syndrome ; diagnosis ; etiology ; physiopathology ; therapy ; Humans ; Male ; Middle Aged ; Prednisolone ; administration & dosage ; Skin ; pathology ; Sulfasalazine ; administration & dosage ; adverse effects ; Symptom Flare Up ; Treatment Outcome ; Vitiligo ; chemically induced ; diagnosis

Adult ; Aminoquinolines ; adverse effects ; therapeutic use ; Condylomata Acuminata ; drug therapy ; Female ; Humans ; Hypopigmentation ; chemically induced ; diagnosis ; Male ; Middle Aged ; Vitiligo ; chemically induced ; diagnosis

Amelanotic acral melanoma is rare and difficult to diagnose, both clinically and pathologically. KIT mutations are frequently found in acral melanomas and are considered a risk factor for poor prognosis. The presence of vitiligo in melanoma has been reported, and KIT is thought to be partly responsible for the dysfunction and loss of melanocytes observed in vitiligo. We report a case of amelanotic subungual melanoma with multiple metastases that was associated with KIT mutation and vitiligo. An 85-year-old man presented with a 3-year history of a tender erythematous ulcerated tumor on the left third fingertip and developed hypopigmented patches on the face and trunk. Histopathological examination of the ulcerative tumor showed aggregates of tumor cells that were pleomorphic epithelioid cells. Immunohistochemical staining of the tumor cells was positive for S100, HMB45, and c-Kit. Histopathological findings from the hypopigmented patch on the face were consistent with vitiligo. Mutation analysis showed a KIT mutation in exon 17 (Y823D). The patient had metastasis to the brain, liver, bone, and both lungs. The patient refused chemotherapy, and died 3 months after the first visit.
Aged, 80 and over ; Brain ; Drug Therapy ; Epithelioid Cells ; Exons ; Humans ; Liver ; Lung ; Melanocytes ; Melanoma* ; Melanoma, Amelanotic ; Neoplasm Metastasis ; Prognosis ; Risk Factors ; Ulcer ; Vitiligo*

OBJECTIVETo observe the difference in clinical efficacy on focal vitiligo treated with heat-sensitive moxibustion in comparison with medication, and discuss its effect mechanism.

METHODSSixty-eight cases were randomized into a moxibustion group (38 cases) and a medication group (30 cases). Additionally, 20 healthy persons were selected randomly as a normal group. In the moxibustion group, the heat-sensitive moxibustion was applied to Hegu(LI 4), Quchi(LI 11), Yanglingquan(GB 34), Zusanli(ST 36), Xuehai(SP 10) and the others, once a day. In the medication group, triamcinolone acetonide cream was used externally and locally, twice a day. In the two groups, the treatment of 15 days made one session. The efficacy was observed after continuous treatment for 3 sessions. The hemorheology test was done in all of the subjects. The radioimmunoassay was adopted to determine the levels of Interleukin 2 (IL-2), Interleukin 6 (IL-6), Interleukin 10 (IL-10) and tumor necrosis factor (TNF-alpha) before and after treatment.

RESULTSThe levels of IL-6, IL-10 and TNF-alpha in vitiligo patients were higher significantly than those in the normal group (P<0. 01, P<0. 05), the level of IL-2 was lower significantly than that in the normal group (P<0. 01) before treatment. After 3 sessions treatment, IL-2 level was increased significantly in the moxibustion group and the levels of IL-6, IL-10 and TNF-alpha were reduced, without significant differences as compared with the normal group (all P>0. 05). But the differences were significant as compared with those in the medication group (all P<0. 05). The curative and remarkably effective rate was 76. 3% (29/38) after treatment in the moxibustion group, which was higher significantly than 13. 3% (4/30, P<0. 05) in the medication group.

CONCLUSIONHeat-sensitive moxibustion achieves very good clinical efficacy on focal vitiligo, which is probably via promoting blood circulation and regulating the levels of IL-6, IL-10 and TNF-alpha.

Adolescent ; Adult ; Child ; Female ; Hot Temperature ; Humans ; Male ; Middle Aged ; Moxibustion ; Triamcinolone Acetonide ; administration & dosage ; Tumor Necrosis Factor-alpha ; Vitiligo ; drug therapy ; therapy ; Young Adult

Female ; Hepatitis C ; complications ; Humans ; Interferon-alpha ; therapeutic use ; Liver Cirrhosis ; complications ; drug therapy ; etiology ; Middle Aged ; Recombinant Proteins ; therapeutic use ; Vitiligo ; complications ; drug therapy

OBJECTIVEZiBuGanShenFang (ZBGSF) is a traditional herbal formula, which has showed an outstanding therapeutic effect on vitiligo clinically. Our aim is to investigate the influence of ZBGSF drug serum on the expression and activity of Tyrosinase in B16 cells, explore the mechanism of ZBGSF on Vitiligo treatment further.

METHODtyrosinase activity was measured by zymological methods, western blotting and RT-PCR were used to measure the protein content and mRNA level of tyrosinase and related proteins, respectively.

RESULTZBGSF drug serum had no effect on the proliferation of B16 cells. But it could promote Tyrosinase activity significantly and increase protein content and mRNA level of tyrosinase and related proteins in B16 cells.

CONCLUSIONPromoting the expression of tyrosinase protein and mRNA may be the elementary basis of ZBGSF on Vitiligo treatment.

Animals ; Drugs, Chinese Herbal ; pharmacology ; Medicine, Chinese Traditional ; methods ; Melanoma, Experimental ; enzymology ; Mice ; Monophenol Monooxygenase ; drug effects ; Tumor Cells, Cultured ; Vitiligo ; drug therapy ; enzymology

Antiviral Agents ; adverse effects ; therapeutic use ; Child ; Hepatitis B, Chronic ; complications ; drug therapy ; Humans ; Interferon Type I ; adverse effects ; therapeutic use ; Male ; Vitiligo ; chemically induced ; etiology

OBJECTIVETo observe the clinical efficacy of Zengse Pill ( ZSP) on patients with vitiligo of qi-stagnancy and blood-stasis syndrome type (V-QB), and to preliminarily explore its mechanism of action.

METHODSSixty-five V-QB patients, with their diagnosis confirmed by clinical examination, were randomized by digital table method into two groups, with 31 patients in the control group and 34 in the treatment group. Cobamamide (2 tablets) was administered orally to all patients, and Psoralea tincture (a self-formulated preparation) was applied externally thrice a day. In addition, for patients in the treatment group, ZSP was given orally, at 5 pills per dose, 3 times every day. The therapeutic course for both groups was 3 months. Patients were re-examined every half-month, and changes in the skin lesions were observed and recorded. The levels of lymphocyte subsets, serum immune globulin, and complement C3 and C4 in patients were determined before and after the therapeutic course and compared with the corresponding indexes determined in 21 healthy subjects.

RESULTSThe total effective rate in the treatment group was 82.4%, which was markedly higher than that in the control group (54.8%), showing a significant difference (P<0.05). After treatment, CD(4) (+) percentage, CD(4) (+)/CD(8) (+) ratio, and blood levels of C3 and C4 increased, while CD(8) (+) percentage decreased in the treatment group (P<0.05 or P<0.01). All these indexes remained unchanged in the control group, and the respective comparisons between groups showed significant differences (P<0.01).

CONCLUSIONZSP has a definite clinical effect on the treatment of V-QB but with no evident adverse reactions, and it can increase the CD(4) (+) percentage, CD(4) (+)/CD(8) (+) ratio, and the levels of serum C3 and C4, thus regulating the immunity of the organism, which might be one of its mechanisms of action.

Adolescent ; Adult ; CD4-CD8 Ratio ; Complement C3 ; analysis ; Complement C4 ; analysis ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Immunoglobulins ; blood ; Lymphocyte Subsets ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Qi ; Vitiligo ; drug therapy ; immunology