• Title/Summary/Keyword: petrolatum

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Effects of Petrolatum and Glycerin on Acetone Damaged Canine Skin Barrier

  • Oh, Won-Seok;Oh, Tae-Ho
    • Journal of Veterinary Clinics
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    • v.25 no.6
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    • pp.466-470
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    • 2008
  • The purpose of this study is to investigate whether the effects of topically applied petrolatum and glycerin on the barrier repair of acetone-induced skin damage in 6 beagle dogs. To confirm the effects of petrolatum and glycerin on acetone disrupted skin models, we performed to evaluate the characteristics of transepidermal water loss and SC hydration and scanning electron microscopic observations. TEWL and SC hydration measurements were carried out 3, 6, 12, 24, 48h after applying petrolatum and glycerin during recovery from acute disruption. Our results showed that there were some different effects between petrolatum and glycerin on the acetone damaged skin such as barrier function repair process and SC hydration status. The results indicate that the significant improvement could be observed in glycerin apply more than petrolatum after acetone damages, and further study will be required.

Topical Administration of Petrolatum Based Cyclosporine to: .Treatment of Keratoconjunctivitis Sicca in Dogs (Petrolatum을 기질로 한 cyclosporine 국소 점안에 의한 개의 건성 각결막염 치료)

  • 이충호;정성목;김완희;박성민;남치주;권오경
    • Journal of Veterinary Clinics
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    • v.19 no.2
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    • pp.260-263
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    • 2002
  • Twenty-nine dogs with chronic keratoconjunctivitis sicca (KCS) were treated by topical administration of a petrolatum based 2% cyclosporine ointment twice daily. Causes and durations of KCS varied. Tear production increased in 25 of 32 eyes and clinical improvement in corneal health was noticed in 35 of 47 eyes. No serious adverse reactions were observed and only mild irritation was noticed by the owners immediately after the application of the ointment in some cases .

Constitutive Expression and Changes of Cytochrome P450 Isozymes mRNAs by Vehicles (Petrolatum, DMSO, Ethanol) in Rat Skin Using Semi-quantitative RT-PCR

  • Lee, Ai-Young;Lee, Kyung-Hoon;Ko, Duck-Sung;Chey, Won-Young
    • The Korean Journal of Physiology and Pharmacology
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    • v.5 no.5
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    • pp.407-412
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    • 2001
  • Many drugs are primarily metabolized by the cytochrome P450s (CYPs). Drug metabolites would be important allergens for adverse drug reactions such as drug eruptions. Skin tests with a suspected drug have conducted to identify causative drugs of drug eruptions, with vehicles such as white petrolatum, DMSO, ethanol. This study will compare the expression of rat CYP isozyme mRNAs between the skin and the liver, with examining an effect of the vehicles on the cutaneous CYPs using semi-quantitative RT-PCR. Thirty-two Sprague-Dawley rats between the ages of six and eight weeks were divided as four groups. One group was used to compare the constitutive mRNA expression between skin and liver, while the others were to examine the effects of three vehicles. The ratios of expression of CYP1A2, CYP2B1/2, CYP2E1, CYP3A1, and CYP4A1 were significantly higher in the liver than the skin. However, CYP1A1 and CYP2C11 were higher in the skin than liver. The effects of vehicles were quite different; white petrolatum significantly induced CYP1A1 (p=0.012) and CYP2C11 mRNAs, while ethanol inhibited CY P1A1 and CYP2B1/2. DMSO did not make any changes. The results suggest that rat skin can participate in drug metabolism with their own CYP isozymes. The effects of vehicles on the cutaneous CYP expression should not be ignored and may be applied for determination of an appropriate vehicle for certain drug(s).

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Moisturizing Effect in Emulsion Body Cleansing System (유화제형 바디클렌징 시스템에서 보습효과)

  • Shin, Moon-Sam
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.36 no.1
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    • pp.41-45
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    • 2010
  • Emulsion body cleansing systems containing high levels of occlusives have recently been developed such as using insoluble crystalline hydroxy waxes, insoluble crystalline surfactant structures, encapsulated particles and smectite clay. In this study, moisturizing effect of various occlusives such as petrolatum and triglycerides was researched in emulsion body cleansing systems. The experiment shows that petrolatum has less moisturizing capacity in emulsion body cleansing systems than triglycerides. In "leave-on" products such as lotion and cream formulations, the moisturizing capacity of petrolatum is more than that of triglycerides, but in "wash-off" emulsion body cleanser of this research, different results appeared. Emulsion body cleansing systems contained high levels of anionic and amphoteric surfactants, therefore petrolatum has more solubility and less deposited amount into the skin during washing process than triglycerides.

THE EFFECT OF TEMPORARY FILLING MATERIALS ON THE ADHESION BETWEEN DENTIN ADHESIVE-COATED SURFACE AND RESIN INLAY (레진코팅된 상아질 표면과 레진인레이간 결합에 임시가봉재가 미치는 영향)

  • Kim, Tae-Gun;Lee, Kwang-Won;Yu, Mi-Kyung
    • Restorative Dentistry and Endodontics
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    • v.33 no.6
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    • pp.553-559
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    • 2008
  • The purpose of this research was to compare the microtensile bond strength of resin coated surface and resin inlay according temporary filling materials prior to applying self-adhesive resin cement. Caviton(GC, Japan), Provifil(Promedica, Neumunster, Germany), Provifil(Promedica, Neumunster, Germany) & petrolatum, and Eugenol-based cement, Tembond(Kerr, Orange CA, USA) were used as temporary filling materials. After fabrication of Tescera(Bisco, Schamburg IL, USA), it was bonded with a self-adhesive resin cement, Rely X unicem(3M, St. Paul. Minn, USA). After this procedure, the microtensile bond strength was measured and it was analyzed through one-way ANOVA and Duncan test(p<0.05). Caviton(GC, Tokyo, Japan) showed statistical difference except for the control(group I) and the saliva(group II)(p<0.05). Provifil(group IV), Provifil & petroneum(group V), Tembond(group VI) had lower microtensile bond strength.