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Alpha-Hydroxy acid

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161. Open Label, Single Dose, Non-randomized Study to Assess the Drug to Drug Interaction of Briakinumab on CYP Substrates.

12 weeks prior to Day-2 Subjects that must use topical therapies for the treatment of psoriasis such as corticosteroids, vitamin D analogs, or retinoids during the study. Subjects are allowed to use: Shampoos that contain no corticosteroid; Bland (without beta or alpha hydroxy acids) emollients; Low potency (Class VI or Class VII) topical corticosteroids on the palms, soles, face, inframammary area, and groin only. See Appendix F for a Listing of Examples of Class VI and VII Topical

2010 Clinical Trials

162. Efficacy and Safety of Salkera Emollient Foam in the Treatment of Moderate to Severe Keratosis Pilaris, a Prospective Study

. Prevention of excessive dryness of the skin and continued moisturization are used currently as standard of care. Many topical agents such as tretinoin, ammonium lactate lotion, urea creams, tazarotene, adapalene, tacrolimus, alpha hydroxy acids and salicylic acids have been used with variable results. Sometimes topical corticosteroids are used, especially when inflammation is present. In general, KP treatments need to be continuous and complete clearance may not be possible. Salkera emollient foam (...) , atopic dermatitis or any other skin disease that will interfere with the clinical assessment of KP. Subject has known allergies to any ingredient of study medication. Subject who has used any of the following topical therapies for KP lesions within the last two weeks: topical corticosteroid, tretinoin, tazarotene, adapalene, salicylic acid, alpha-hydroxy acid, urea and/or ammonium lactate lotion. Subject who has been treated with UVB therapy in the last two weeks. Subject who has received systemic

2009 Clinical Trials

163. The Purpose of This Study is to Determine The Efficacy and Safety of a Systemic Hedgehog Pathway Antagonist (GDC-0449) in Patients With Basal Cell Nevus Syndrome (BCNS)

: has used topical or systemic therapies that might interfere with the evaluation of the study medication during the study. Specifically these include the use of: (i) glucocorticoids to more than 5% of the skin (ii) retinoids systemically or topically to more than 5% of the skin during the six months prior to study entry; (iii) alpha-hydroxy acids to more than 5% of the skin during the six months prior to study entry (iv) 5-fluorouracil or imiquimod systemically or topically to the skin above

2009 Clinical Trials

164. Does Welchol (Colesevelam Hydrochloride) Improve Colonic Transit in Diarrhea-predominant Irritable Bowel Syndrome (D-IBS)?

, permeability and the bowel function of patients with D-IBS. Methods: Twenty-four D-IBS participants will be randomized to placebo or treatment with Welchol (Colesevelam HCL) 1.875 gram b.i.d. for 12-14 days. A baseline colon transit, 24 hour urine for colon permeability, and blood for serum 7 alpha-hydroxy-4-cholesten-3-one (7 alpha-HCO) will be measured and venous blood DNA will be collected and stored. The measurement of serum 7 alpha-hydroxy-4-cholesten-3-one (7 alpha-HCO), which is a measurement (...) to irritable bowel syndrome. This effect is thought to result from the effect of the medication on bile acids, which can cause diarrhea. Condition or disease Intervention/treatment Phase Irritable Bowel Syndrome Diarrhea Drug: Colesevelam Drug: Placebo Phase 2 Detailed Description: Background: Irritable bowel syndrome (IBS) affects about 15% of the U.S. population, about 5% having predominant diarrhea; current treatment is suboptimal as it may not be tolerated, lead to side effects or insufficient benefit

2009 Clinical Trials

165. Cheno Effect on Transit in Health and IBS-C

Description: Hypothesis: A hydrophobic di-alpha hydroxy bile salt, sodium chenodeoxycholate (CDC), delivered in a delayed release capsule to the ileocolonic region of the colon induces acceleration of colonic transit in patients with constipation-predominant IBS. Methods: We shall study 36 patients with IBS-C, aged 18-65 years, and each treatment group will be balanced on gender and Body Mass Index (BMI) in the randomization. All patients will be assessed for symptoms of functional gastrointestinal (...) for Research Resources (NCRR) Information provided by: Mayo Clinic Study Details Study Description Go to Brief Summary: The study hypothesis is that the naturally occurring bile acid, chenodeoxycholic acid, induces acceleration of colonic transit in health and in patients with constipation-predominant Irritable Bowel Syndrome (IBS-C). Condition or disease Intervention/treatment Phase Constipation-predominant Irritable Bowel Syndrome Drug: Sodium chenodeoxycholate (NaCDC) Other: Placebo Phase 2 Detailed

2009 Clinical Trials

166. Involvement of Ionizable Groups in Catalysis of Human Liver Glycolate Oxidase Full Text available with Trip Pro

Involvement of Ionizable Groups in Catalysis of Human Liver Glycolate Oxidase Glycolate oxidase is a flavin-dependent, peroxisomal enzyme that oxidizes alpha-hydroxy acids to the corresponding alpha-keto acids, with reduction of oxygen to H(2)O(2). In plants, the enzyme participates in photorespiration. In humans, it is a potential drug target for treatment of primary hyperoxaluria, a genetic disorder where overproduction of oxalate results in the formation of kidney stones. In this study

2009 The Journal of biological chemistry

167. Liquid Chromatography-Tandem Mass Spectrometry Analysis of Folate and Folate Catabolites in Human Serum. Full Text available with Trip Pro

ascorbic acid to serum samples from 168 healthy blood donors and 39 patients with renal failure, and precipitated the proteins with acetonitrile containing (13)C-labeled folate forms as internal standards. The supernatant was evaporated and the analytes redissolved in water. We then used liquid chromatography-tandem mass spectrometry to quantify 5-methyltetrahydrofolate (5mTHF), 4-alpha-hydroxy-5-methyltetrahydrofolate (hmTHF), folic acid (FA), 5-formyltrahydrofolate (5fTHF), p-aminobenzoylglutamate

2009 Clinical Chemistry

168. Effects of Oral and Topical Sea Buckthorn Oil Treatments on Skin Aging

of topical retinoid products for 6 months prior to study entry and of systemic retinoids for 1 year prior to study entry. Subjects must have discontinued the use of topical alpha-hydroxy, &/or beta-hydroxy products for 45 days prior to study entry & all other topical facial medication to the skin immediately prior to study entry. Subjects must have discontinued the use of systemic antiaging or antioxidant products for at least 2 months prior to study entry. Subjects must be willing & able to follow all (...) , hyaluronic acid etc) Concurrent therapy, systemic diseases, or skin disorders (such as eczema, psoriasis, severe acne etc.) which may interfere with the evaluation of the test articles or increase risk to the subject. Subjects currently involved in another clinical investigation or who have been involved within a period of 30 days prior to admission in this study. Contacts and Locations Go to Information from the National Library of Medicine To learn more about this study, you or your doctor may contact

2008 Clinical Trials

169. Clinical Trial to Evaluate Biafine Cream Versus Standard Care in Subjects With Actinic Keratosis Post Cryotherapy

: Subjects age <50 years of age. Subjects with known allergy or sensitivity to topical Biafine or polysporin ointment. Inability to complete all study-related visits. Introduction of any other prescription medication, topical or systemic, for AK while participating in the study. Subjects using other topical agent's glycolic acid products, alpha-hydroxy acid products, retinoids and chemical peel agents in the treatment areas while on study. Contacts and Locations Go to Information from the National (...) Experimental: Biafin on left arm Subjects were randomized to apply Biafine® to wounds on the left forearm and polysporin (standard of care) to wounds on the right forearm. Medications were applied three times a day for 4 weeks to the areas that have been treated with liquid nitrogen at the baseline visit. Drug: Biafine Apply to wounds 3 times daily for 4 weeks: ingredients: purified water, liquid paraffin, glycol monostearate, stearic acid, propylene glycol, paraffin wax, squalene, avocado oil, trolamine

2008 Clinical Trials

170. Efficacy and Safety Study of Tazarotene (Tazorac) for the Treatment of Brittle Nails

% of women and 15% of men, with highest prevalence among the elderly. Treatment of brittle nails involves restoration and maintenance of a normal degree of nail plate hydration by minimizing exposure to dehydrating chemicals and by use of moisturizers, such as alpha-hydroxy acids. Retinoids are vitamin A analogs that play a role in skin cell differentiation and proliferation. Tazarotene is a topical receptor-selective synthetic retinoid that normalizes epidermal differentiation and reduces the influx (...) Tazarotene Nicotinic Acids Dermatologic Agents Keratolytic Agents Vitamin B Complex Vitamins Micronutrients Nutrients Growth Substances Physiological Effects of Drugs

2008 Clinical Trials

171. Controlled Study of the Effect of Xenaderm® Ointment Vehicle Versus White Petrolatum on Healing

treated within the last three months for uncontrolled diabetes mellitus, peripheral vascular disease, vitamin C deficiency, connective tissue disorders, or any other disease process that impedes wound healing. Are taking concomitant medications at doses which are known to interfere with healing, such as non-steroidal anti-inflammatory drugs, anti-neoplastic drugs, or immunosuppressive drugs. Are using topical glycolic acid products, alpha-hydroxy acid products, retinoids or chemical peel agents

2008 Clinical Trials

172. The Effect Of Oral Ibandronate In Male Osteoporosis

estrogen receptor modulators (SERMS) such as raloxifene, toremifene, tamoxifen, arzoxifene and lasofoxifene Anabolic steroids and other androgens, such as dehydroepiandrosterone (DHEA) or its sulphated form (DHEAs) Active vitamin D analogs/metabolites such as1,25-dihydroxy vitamin D (calcitriol) or 1-alpha-hydroxy vitamin D3 (1 - alpha hydroxycholecalciferol) Gonadotropin releasing antagonists (lupron) ALT > twice upper limit of normal range of central laboratory Hypercalcemia or uncorrected (...) Metabolic Diseases Ibandronic Acid Bone Density Conservation Agents Physiological Effects of Drugs

2006 Clinical Trials

173. Clinical Trial to Determine the Efficacy of Sculptraâ„¢ Dermal Filler for the Correction of Contour Deformities Caused by Lipoatrophy

-dimensional evaluation of a large area. This will produce excellent reproducible results as well as outstanding photographs for patient demonstration. Sculptra™ is an injectable implant that contains microparticles or poly-L-lactic acid, a biocompatible, biodegradable, synthetic polymer from the alpha-hydroxy-acid family. Sculptra™ is reconstituted prior to use by the addition of sterile water for injection, USP (SWFI) to form a sterile non-pyrogenic suspension. Comparison: Dermik's Vega Study - The Vega (...) -lactic acid Dermik SpaMD Sanofi Facial lipoatrophy Facial emaciation Additional relevant MeSH terms: Layout table for MeSH terms Lipodystrophy Emaciation Skin Diseases, Metabolic Skin Diseases Lipid Metabolism Disorders Metabolic Diseases Weight Loss Body Weight Changes Body Weight Signs and Symptoms Mannitol Diuretics, Osmotic Diuretics Natriuretic Agents Physiological Effects of Drugs

2006 Clinical Trials

174. Safety, Efficacy and Psychological Effects of Treating Antiretroviral Drug-Induced Facial Lipoatrophy With Bio-Alcamid

relocation during the study, which would make follow-up visits impossible during the course of the study Used aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) within 1 week prior to initial or touch-up treatment or are taking concomitant anticoagulant therapy, anti-platelet therapy, or have a history of bleeding disorders Used over-the-counter wrinkle products (e.g., alpha-hydroxy acids) or prescription treatments (e.g., Renova, Retin-A, microdermabrasion, chemical peels) in the facial area

2006 Clinical Trials

175. A Phase 3 Study to Compare the Safety and Efficacy of 5% Dapsone Topical Gel, (DTG) Twice Daily in Combination With Once Daily Vehicle Control, Adapalene Gel 0.1% or Benzoyl Peroxide Gel 4%

, photodynamic treatment), systemic medications, or skin treatments known to affect acne or inflammatory responses within the 28 days prior to Baseline and throughout the study. This includes but is not limited to: antibiotics, large doses (>50,000 U/day) of vitamin A, hormones (excluding those used for birth control), spironolactone, aldactone, aldactizide, cyproterone acetate, NSAIDS and chemical exfoliative treatments (alpha-hydroxy acid or "fruit-wash," "lunchtime" or phenol peels) or physical peels (...) within the Package Insert. Subjects who are using topical agents for acne (including and not limited to benzoyl peroxide, antibiotics, topical vitamin A derivates such as retinol or retinoids, medicated cosmetics, cleansers) within 14 days prior to Baseline and throughout the study. This includes over the counter medications and cleansers that contain acne treatment ingredients, e.g. benzoyl peroxide, salicylic acid. Subjects who have received light therapies (ultraviolet B, tanning bed, lasers

2005 Clinical Trials

176. l-Selective Amidase with Extremely Broad Substrate Specificity from Ochrobactrum anthropi NCIMB 40321 Full Text available with Trip Pro

-treated enzyme could be restored by the addition of Zn2+ (to 80%), Mn2+ (to 400%), and Mg2+ (to 560%). Serine and cysteine protease inhibitors did not influence the purified amidase. This enzyme displayed activity toward a broad range of substrates consisting of alpha-hydrogen- and (bulky) alpha,alpha-disubstituted alpha-amino acid amides, alpha-hydroxy acid amides, and alpha-N-hydroxyamino acid amides. In all cases, only the L-enantiomer was hydrolyzed, resulting in E values of more than 150. Simple (...) aliphatic amides, beta-amino and beta-hydroxy acid amides, and dipeptides were not converted. The gene encoding this L-amidase was cloned via reverse genetics. It encodes a polypeptide of 314 amino acids with a calculated molecular weight of 33,870. Since the native enzyme has a molecular mass of about 66 kDa, it most likely has a homodimeric structure. The deduced amino acid sequence showed homology to a few other stereoselective amidases and the acetamidase/formamidase family of proteins (Pfam

2005 Applied and environmental microbiology

177. Effects of long-term plant sterol or stanol ester consumption on lipid and lipoprotein metabolism in subjects on statin treatment. (Abstract)

(n 19) (2.5 g/d each) ester-enriched margarine. Blood was sampled at the end of the run-in period and every 20 weeks during the intervention period. Compared with the control group, plant sterol and stanol ester consumption reduced LDL-cholesterol by 0.28 mmol/l (or 8.7 %; P = 0.08) and 0.42 mmol/l (13.1 %; P = 0.006) respectively after 85 weeks. No effects were found on plasma concentrations of oxysterols or 7 alpha-hydroxy-4-cholesten-3-one, a bile acid synthesis marker. We conclude that long (...) statin treatment the effects of 85 weeks of plant sterol and stanol ester consumption on the serum lipoprotein profile, cholesterol metabolism, and bile acid synthesis. For this, a double-blind randomised trial was designed in which fifty-four patients consumed a control margarine with no added plant sterols or stanols for 5 weeks (run-in period). For the next 85 weeks, seventeen subjects continued with the control margarine and the other two groups with either a plant sterol (n 18) or plant stanol

2008 The British journal of nutrition Controlled trial quality: uncertain

178. Treatment of refractory cholestatic pruritus after liver transplantation with albumin dialysis. (Abstract)

was 15.6 hours. The procedure was well tolerated by all patients. The mean total serum bilirubin in patients who responded to therapy declined from 19.11 +/- 16.96 mg/dL (SD) before MARS therapy to 9.24 +/- 3.52 mg/dL after treatment. The mean serum concentration of 3 alpha-hydroxy bile acids decreased from 192.67 +/- 58.12 micromol/L (SD) to 42.33 +/- 31.58 micromol/L (SD). Follow-up in 3 cases showed sustained improvement of pruritus lasting for more than 3 months. In 3 patients, however, pruritus (...) relapsed. One patient, who showed severe pruritus, without relevant elevation of serum bile acids before treatment, did not respond to albumin dialysis. Our data indicate that MARS is an effective therapeutic option for patients with intractable cholestatic pruritus.

2004 Liver Transplantation

179. Non-surgical treatment modalities of facial photodamage: practical knowledge for the oral and maxillofacial professional. (Abstract)

cosmetic procedures. Here, some of the non-surgical options available for the treatment of photodamaged skin are reviewed and an overview of the specific treatments in this category provided. Sun avoidance and protection from harmful rays with appropriate sunscreens are primary to maintaining healthy skin and appearance. Among treatment options, topical treatments with preparations such as retinoids, alpha-hydroxy acids and antioxidants have been shown to provide some benefit and are relatively easy (...) to use albeit with appropriate precautions and professional guidance. As a second-level option, facial rejuvenation procedures such as botulinum toxin injection, soft tissue augmentation with collagen or hyaluronic acid gel, skin resurfacing, use of chemical peels, dermabrasion and laser resurfacing procedures can be used but require administration by qualified practitioners. Overall, these treatments may be used to complement rehabilitative, reconstructive, or cosmetic oral and maxillofacial surgery

2006 International Journal of Oral and Maxillofacial Surgery

180. Effective over-the-counter acne treatments. (Abstract)

antibacterial agent, and salicylic acid, a mild comedolytic and antiinflammatory medication. Other, less-common OTC ingredients include sulfur, sodium sulfacetamide, and alpha hydroxy acids. Zinc, vitamin A, tea tree oil, and ayurvedic therapies also are available OTC for acne. Additional and better studies are needed to clarify the benefit of these latter medications.

2008 Seminars in Cutaneous Medicine and Surgery

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