tazarotene (Total 276 Papers Found)

Brittle nail syndrome refers to nails that exhibit surface roughness, raggedness, and peeling. It is a common problem, with a higher prevalence among elderly patients. The goal of this study was to determine if tazarotene cream 0.1% ameliorates the signs and symptoms of brittle nails. In this open-label, single-center trial, participants applied tazarotene cream to the nails twice daily for 24 weeks. Signs and symptoms were rated by the investigators and by the participants during treatment and ...
Tazarotene topical gel (Tazorac) is a vitamin A derivative and the first topical retinoid to demonstrate therapeutic success in treating plaque-type psoriasis. It has been available in the United States since 1997. Tazarotene offers long-term remission in many patients and may be used in combination with corticosteroids and UVB therapy for even better results. Due to its potency as a vitamin derivative, tazarotene is also associated with irritation in some patients. Patients must be educated abo ...
Basal cell carcinomas are the most common form of skin cancer. Tazarotene is a retinoic acid receptor selective retinoid that upregulates a tumor suppressor, tazarotene-induced gene 3 (TIG-3), in keratinocytes and psoriasis. Expression of TIG-3 in basal cell carcinomas was studied in an opened-label pilot biomarker study of 22 patients with basal cell carcinomas who applied tazarotene 0.1% gel for up to 12 wk prior to excision. Nineteen paired baseline and treated specimens were compared using i ...
Results of clinical trials have shown that tazarotene cream used as monotherapy effectively reduces the number of both inflammatory and noninflammatory lesions in patients with acne vulgaris. The efficacy of tazarotene cream in clinical practice, however, has not been reported. To evaluate the benefits of tazarotene cream in everyday clinical practice, an uncontrolled observational study was conducted in a large population of patients with facial acne vulgaris; 243 investigators enrolled 1118 pa ...
BACKGROUND Prostate cancer is the most common noncutaneous male cancer and one of the least understood malignant diseases. Identifying key genetic factors involved in the metastasis of prostate cancer cells is critical. In this study, we used selective subtractive differential gene display to identify a gene whose decreased expression may contribute to the growth and expansion of prostate cancer. METHODS We used 192 primer pair combinations and polymerase chain reaction technology to identify ...
According to the patients, improvement of efficacy, long-term safety and improvement of compliance are needed. The topical treatment has been innovated during the last decade. Most important are the introduction of two new classes of treatments: topical vitamin D(3) analogues and the retinoid tazarotene. To what extent, however, have we achieved developments which are in line with the needs as expressed by the patients? Improved efficacy has been realized by successful combinations of topical tr ...
BACKGROUND No controlled data is available till date comparing topical tazarotene and clobetasol in Indian psoriatic patients. OBJECTIVE The aim was to compare the clinical efficacy of 12 weeks of once-daily tazarotene 0.1% cream with that of once-daily clobetasol propionate 0.05% cream in the treatment of patients with chronic plaque psoriasis. METHODS About 36 patients with bilaterally symmetrical lesions were enrolled in this double-blind randomized controlled study. A left-right randomiz ...
1. The present study was designed to investigate drug-drug interaction in a new combination cream which contains both tazarotene (TZRT) and betamethasone dipropionate (BTMSDP) by comparing the pharmacokinetic (PK) behaviors of TZRT, BTMSDP, and their major metabolites, tazarotenic acid (TZRTAC) and betamethasone (BTMS) with those in the commonly prescribed TZRT gel and BTMSDP cream. 2. The trial was performed on six Bama mini-pigs. The different regions on the back side of each pig were randomly ...
Tazarotene in combination with phototherapy is being used clinically for the treatment of plaque psoriasis. This study investigates the dose of UVB light required to induce minimal erythema and the dose of UVA light required to induce immediate pigment darkening, with and without pretreatment with tazarotene 0.1% gel. The photostability of tazarotene is also assessed. Pretreatment with tazarotene 0.1% gel 3 times per week for 2 weeks before phototherapy significantly reduced the mean minimal ery ...
Confluent and reticulate papillomatosis (CRP) (also known as Gougerot-Carteaud syndrome) is a rare disorder that usually presents sporadically, with onset typically occurring in young .adulthood. We present 2 cases of CRP with typical clinical manifestations of scaly, dull, brownish, confluent and reticulate macules and patches. On examination using a potassium hydroxide (KOH) preparation and Periodic acid-Schiff (PAS) stain, both patients' lesions were negative for fungal elements; in patient 2 ...
OBJECTIVE To investigate the mechanism of tazarotene against active psoriasis vulgaris. METHODS A randomized, controlled trial was conducted in 43 patients with active psoriasis vulgaris, who were divided into tazarotene and control groups. Promyelocytic leukemia (PML) mRNA in active psoriatic lesions before and 14 days after tazarotene treatment was detected by in situ hybridization. RESULTS PML mRNA expression was detected not only in the basal layer (86.96%), but also in the suprabasal la ...
A multicenter, investigator-masked, randomized, parallel-group study was performed in 440 patients with mild-to-moderate facial acne vulgaris to compare the efficacy and tolerability of tazarotene monotherapy with 3 combination regimens--tazarotene plus benzoyl peroxide gel, tazarotene plus erythromycin/benzoyl peroxide gel, and tazarotene plus clindamycin phosphate lotion. An additional treatment group-monotherapy with clindamycin phosphate lotion-also was included as a reference arm. The only ...
The wall of the ventral third ventricle is composed of two distinct cell populations: tanycytes and ependymal cells. Tanycytes regulate many aspects of hypothalamic physiology, but little is known about the transcriptional network that regulates their development and function. We observed that the retina and anterior neural fold homeobox transcription factor (Rax) is selectively expressed in hypothalamic tanycytes, and showed a complementary pattern of expression to markers of hypothalamic epend ...
PURPOSE The purpose of this study was to investigate the influence of selective agonists of the retinoid receptor X (RXR) and the retinoid acid receptor (RAR) on bone metabolism in rats. METHODS Thirty six male Wistar rats were divided into three groups: receiving bexarotene, or tazarotene, or to control group. Serum biochemical markers of bone turnover (osteocalcin - OC, tartrate resistant acid phosphatase 5 - TRACP5b and osteoprotegerin - OPG) and mechanical properties of bones were analyzed ...
Oral retinoids such as etretinate/acitretin are well established for the treatment of severe generalized psoriasis. They are particularly useful for the management of pustular and erythrodermic variants and plaque-type psoriasis because they act synergistically with many other topical antipsoriatic agents (corticosteroids, anthralin, tar, and phototherapies). Oral regimens are dose-dependent, and, if carefully administered, are manageable and tolerable. Long-term toxicity is rare; however, terat ...
The objective of this study was to develop and evaluate a novel microemulsion (ME) formulation containing tazarotene for targeted topical therapy of acne. Microemulsions (MEs) were formulated by spontaneous microemulsification method using 12 % Isopropyl myristate, mixed emulsifiers 15 % Labrasol-Cremophor-RH 40 (1:1), 15 % Capmul MCM and 58 % water (w/w) as an external phase. All plain and tazarotene loaded MEs were clear and showed physicochemical parameters for desired topical delivery an ...
Retinoid-inducible gene 1 (RIG1), also called tazarotene-induced gene 3, belongs to the HREV107 gene family, which contains five members in humans. RIG1 is expressed in high levels in well-differentiated tissues, but its expression is decreased in cancer tissues and cancer cell lines. We found RIG1 to be highly expressed in testicular cells. When RIG1 was expressed in NT2/D1 testicular cancer cells, neither cell death nor cell viability was affected. However, RIG1 significantly inhibited cell mi ...
BACKGROUND Psoriasis is a common skin disease that can also involve the nails. All parts of the nail and surrounding structures can become affected. The incidence of nail involvement increases with duration of psoriasis. Although it is difficult to treat psoriatic nails, the condition may respond to therapy. OBJECTIVES To assess evidence for the efficacy and safety of the treatments for nail psoriasis. SEARCH METHODS We searched the following databases up to March 2012: the Cochrane Skin Gro ...
The inhibitory effect of tazarotene, an acetylenic retinoid, on human dermal fibroblast in vitro was compared to that of all-trans-retinoic acid. The proliferation of fibroblasts was inhibited by both retinoids at the concentration of 1 microM after 5 days of culture. Synthesis of DNA and collagen was inhibited by both retinoids concentration-dependently up to 10 microM, although tazarotene was weaker in the inhibition of collagen synthesis. These results suggest the possible usefulness of tazar ...
The efficacy and tolerability of tazarotene 0.1% gel and adapalene 0.1% gel were compared in a multicenter, double-blind, randomized, parallel-group study in 145 patients with mild-to-moderate facial acne vulgaris. Both treatments were applied once daily in the evenings for up to 12 weeks. Compared with adapalene, treatment with tazarotene was associated with a significantly greater incidence of treatment success (> or = 50% global improvement) (78% vs 52%; P=.002) and significantly greater r ...
BACKGROUND/OBJECTIVES Lamellar ichthyosis (LI) is a well-described phenotypic subtype of autosomal recessive congenital ichthyosis (ARCI). The condition typically presents at birth with collodion membrane and leads to thick, plate-like scaling of the skin throughout the body, alopecia, and prominent ocular manifestations. Ocular complications include bilateral cicatricial ectropion and lagophthalmos. These ocular complications can lead to chronic exposure keratitis and in some cases corneal ulce ...
Reverse pharmacology is a screening technology that matches G protein-coupled receptors (GPCRs) with unknown cognate ligands in cell-based screening assays by detection of agonist-induced signaling pathways. One decade spent pursuing orphan GPCR screening by this technique assigned over 30 ligand/receptor pairs and revealed previously known or novel undescribed ligands, mostly of a peptidic nature. In this review, we describe the discovery, characterization of the structural composition, biologi ...
Topical retinoids are important tools in the management of acne because they act against comedones and microcomedones and have direct anti-inflammatory effects. The substances approved for acne treatment comprise tretinoin (all-trans-retinoic acid), isotretinoin (13-cis retinoic acid) as well as the synthetic third-generation polyaromatic retinoids adapalene and tazarotene, the latter being approved for acne treatment in the US only. Retinaldehyde is used in cosmetic preparations against acne. A ...
The porokeratotic eccrine ostial and dermal duct naevus or PEODDN represents a very rare hamartoma of the eccrine sweat glands. A 16-year old boy had developed subtle hyperkeratotic skin lesions on his right hallux at six months of age. When he was eight years old, he developed similar lesions on his right palm. Clinically the lesions were coniform hyperkeratoses. The histopathological examination confirmed the diagnosis of a PEODDN showing typical cornoid lamella where the eccrine secretory duc ...
Psoriasis is a chronic skin disorder that affects approximately 2% of the US and European population. Over the last several years, one of the major focuses in psoriasis research has been the development of biologic therapies for this disease. The aim of these therapies is to provide selective, immunologically directed intervention with fewer side effects than traditional therapies. The goal of this article is to review the progress of the biologic agents which are available, or under investigati ...
The topical retinoid tretinoin and topical retinoid analogues such as adapalene and tazarotene help normalize hyperkeratinization in acne vulgaris and have demonstrated significant anti-inflammatory effects in experimental trials. Inhibition of various immune factors, including the activity of leukocytes, the release of proinflammatory cytokines and other mediators, and the expression of transcription factors and toll receptors involved in immunomodulation, has emerged in both in vitro studies a ...
To investigate the effects of ATRA, acitretin and tazarotene on the growth and apoptosis of human tongue squamous cell carcinoma cell line Tca8113. The effect of retinoids on growth of Tca8113 cellsin vitro was examined by MTT assay and Trypan blue exclusion assay. Cell cycle analysis, early apoptosis analysis with double staining with Annexin V-FITC and PI, and active caspase-3 analysis with the staining of FITC-conjugated monoclonal rabbit anti-active caspase-3 antibody were made by flow cytom ...
Extramammary Paget disease (EMPD) is an intraepithelial adenocarcinoma usually localized in areas rich in apocrine sweat glands. Surgery remains the treatment of choice for EMPD. However, several nonsurgical treatments have been also described. Around 40 cases of EMPD treated with imiquimod 5% have been published; of these, only six correspond to nonresponses. We describe a recurrent vulvar EMPD with failure to respond to topical imiquimod 5% in monotherapy but a favorable response to its associ ...
This review examines the commonly available topical acne agents and factors that determine their percutaneous absorption. Reported and theoretical adverse effects from systemic exposure are detailed. The topical retinoid class, which includes tretinoin, adapalene and tazarotene, and the topical antibacterials, clindamycin and erythromycin, are regulated by prescription in most countries. Used appropriately, the above-mentioned drugs deliver, at most, miniscule amounts of active ingredient into t ...
Retinoic acid receptor (RAR) is perceived to function as a tumor suppressor gene in various contexts where its absence is associated with tumorigenicity and its presence causes cell cycle arrest. Tazarotene is a prodrug selective for RAR / , thereby motivating interest in determining whether tazarotene might activate putative tumor suppressor activity. Using HL-60 human myeloblastic leukemia cells, a cell line that undergoes G0 cell cycle arrest and myeloid differentiation in response to retinoi ...
520 Ann Dermatol Received June 4, 2013, Revised July 9, 2013, Accepted for publication July 16, 2013 Corresponding author: Mi Woo Lee, Department of Dermatology, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Korea. Tel: 82-2-3010-3466, Fax: 82-2-486-7831, E-mail: miumiu@ amc.seoul.kr This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/3.0) which permits unrestricte ...
BACKGROUND Photodamage describes skin changes such as fine and coarse wrinkles, roughness, freckles and pigmentation changes that occur as a result of prolonged exposure to the sun. Many treatments are available to reverse the damage, but it is unclear which work and at what cost in terms of unwanted side effects. OBJECTIVES To assess the effects of topically applied treatments, tablet treatments, laser and surgical procedures for photodamaged skin. SEARCH STRATEGY We searched the Cochrane C ...
To study the systemic exposure of tazarotene formulation after topical administration, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous determination of tazarotene and tazarotenic acid in minipig plasma. Similar extraction recoveries for both analytes were obtained after the plasma samples were acidified by glacial acetic acid (5%) and extracted by ethyl ether-cyclohexane (4:1, v/v). Separation of the analytes was achieved within ...
FUNDAMENTALS The aim of treatment in psoriasis is to reduce the degree of extension to a point compatible with the patients social, occupational and personal lifestyle. The patient should be informed that there is no curative treatment. A good patient-doctor relationship is required for the patient to understand that the proposed treatment can provide symptomatic relief but must take into account an optimal balance between treatment benefit and risk. Therapeutic abstention must be recognized as ...
OBJECTIVE To evaluate the efficacy of 3 maintenance regimens (topical tazarotene, oral minocycline hydrochloride, or both) in sustaining improvement in acne. DESIGN Multicenter, open-label treatment phase followed by double-blind, randomized, parallel-group maintenance phase. SETTING Ambulatory patients in research or referral centers. PATIENTS Volunteer sample of 189 patients with moderately severe to severe acne vulgaris (110 entered maintenance phase, 90 completed, and 2 discontinued be ...
The retinoids are a class of small molecules capable of affecting biological systems in a fundamental way by interacting with a variety of nuclear receptors and affecting gene transcription. As such, they have powerful therapeutic potential in the treatment of a variety of diseases. However, non-selective retinoid drugs that indiscriminately activate many or all of the different retinoid receptors and their signaling pathways will invariably produce both undesirable and beneficial effects. There ...
BACKGROUND Superoxide dismutase (SOD) reduces the reactive oxygen species formation associated with oxidative stress. An imbalance between free radicals and antioxidants can lead to accelerated aging. GliSODin(®) Skin Nutrients Advanced Anti-Aging Formula (GAAF) is an SOD-containing dietary nutricosmetic formulated with other nutraceuticals that promote improvements in the structure and function of the skin, including hydration, elasticity, structural integrity, and photoaging caused by oxidati ...
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In summary, then, tazarotene is a selective RAR agonist. It has clinical efficacy similar to fluocinonide cream, but no risk of atrophogenicity, no tachyphylaxis, and longer duration of remission than we see with topical corticosteroids. Adverse effects are erythema, burning, and pruritus. Such effects are reduced and efficacy improved by combining the treatment with topical corticosteroids. It is also useful with ultraviolet B phototherapy. PUVA should be the next treatment modality to be explo ...
BACKGROUND Tazarotene 0.1% gel and cream are effective topical treatments for acne. Tazarotene foam, 0.1% was developed to provide an alternative, safe, and effective formulation. OBJECTIVE To evaluate efficacy and tolerability of tazarotene foam, 0.1% in adults and adolescents with acne vulgaris. METHODS Two randomized, double-blind, vehicle-controlled, parallel-group studies were conducted at 39 centers in the United States and Canada. The first study involved 744 participants and the seco ...
A variety of tumor suppressor genes are down-regulated by hypermethylation during carcinogenesis. Using methylated CpG amplification-representation difference analysis, we identified a DNA fragment corresponding to the Tazarotene-induced gene 1 (TIG1) promoter-associated CpG island as one of the genes hypermethylated in the leukemia cell line K562. Because TIG1 has been proposed to act as a tumor suppressor, we tested the hypothesis that cytosine methylation of the TIG1 promoter suppresses its e ...
In the course of the chronic skin disease psoriasis, where a variety of treatment interventions is available, a strong growth of health economic studies comparing treatment costs and benefits can be noticed. The objective was to identify health economic evaluations of psoriasis treatments that have been published to date. Of particular interest were the mostly used analysis and outcome parameters, the compared treatments, and the question, if available health economic studies may be used to perf ...
Tazarotene (Tazorac, Allergan, Inc.) is the first topical retinoid approved for the treatment of plaque psoriasis. It has a similar onset of action compared to potent topical steroids and has the advantage of a longer remission. The common side effects associated with the drug include skin irritation (including pruritus), erythema and a burning sensation. To overcome some of these shortcomings, it has been used in combination with steroids, calcipotriene and phototherapy. Combination therapy not ...
BACKGROUND Drug-induced osteoporosis is a significant health problem, as many drugs have deleterious effects on bone metabolism. Data from several studies concerning the influence of retinol on bone homeostasis are inconsistent. OBJECTIVES The purpose of this study was to investigate the influence of tazarotene, a selective agonist of the retinoic acid receptor (RAR), on bone metabolism and bone mechanical properties in rats. MATERIAL AND METHODS Sixteen male Wistar rats were assigned either ...
BACKGROUND Tazarotene foam is the first topical retinoid foam approved for the treatment of acne vulgaris. OBJECTIVE To review the safety and efficacy studies of tazarotene foam in the treatment of moderate to severe acne. METHODS Five Phase I safety studies in normal controls are reviewed and two Phase III safety and efficacy studies in patients with moderate to severe acne are reviewed. CONCLUSION Tazarotene foam, 0.1% was effective in the treatment of moderate to severe acne vulgaris wi ...
This chapter will discuss the entire spectrum of phototherapy, including narrowband UVB photo-therapy, broadband UVB phototherapy, PUVA, targeted excimer laser phototherapy, and combination treatments. Phototherapy can range from simple treatments in a UVB phototherapy box, with or without concurrent use of various tar preparations, to more elaborate modalities in which the intensity of UVB radiation applied varies according to different anatomical regions. Combining PUVA or UVB phototherapy wit ...
Tazarotene is the first of a new generation of acetylenic retinoids developed for the topical treatment of mild-to-moderate plaque psoriasis. Controlled clinical trials have demonstrated that once-daily tazarotene 0.05% and 0.1% gels are effective in improving and reducing clinical signs and symptoms of psoriasis on trunk and limb lesions and difficult-to-treat elbow and knee plaques. Tazarotene has a rapid onset of action indicated by significant improvements as early as the first week of treat ...
In 1937, Siemens described a Dutch family with superficial blistering, flexural hyperkeratosis, and characteristic mauserung appearance. Since then, less than 20 kindreds with this condition have been described in the English dermatologic literature. A 14-year-old boy presented with history of recurrent blistering and peeling of skin since the age of 1 month, predominantly seen over limbs and trunk, often associated with secondary infection. His mother also had similar symptoms from childhood. O ...