objective(s) the process of wound healing involves tightly integrated events including inflammation, granulation tissue formation and remodeling. systemic administration of l-arginine promotes wound healing but its global side effects are undesirable. to confine the action of l-arginine at the site of injury, we tested the effects of local administration of l-arginine on the healing of excision...

nicotine transdermal systems are being used as an aid to smoking cessation programs. as the kinetics of nicotine delivery is important in success of a smoking cessation program, rapid and high input of nicotine is required, which is not possible by passive methods and requires enhancement strategies such as iontophoresis. iontophoretic permeation, of nicotine looks promising, based on published...

background necrosis of skin flaps is considered as an important complication in reconstructive surgery. we conducted an experimental study to investigate the efficacy of low-molecular weight heparin, clopidogrel and their combination to improve the flap survival. methods forty male, adult sprague-dawlay rats were divided randomly into 4 groups. standard rectangular, distally based dorsal random...

purpose: since there have been some debates about using supa brand silk, this study was designed to elucidate the possible differences between supa and ethicon silk in suturing rat skin. materials & methods: this study was carried out on 60 female spragne-dawly albino rats. the animals were randomly assigned to two equal groups. in group one, 3/0 silk, supa product, and in group two, 3/0 ...

background and objectives: the wounds are still the health tribulations at the present time. in the present research the effect of a new herbal ointment (oppyheal) in treatment of rat’s wound has been investigated. the effectiveness of the ointment was compared with the fibrinolysin/dnase. methods: fifty four male wistar rats were used. the wound was created on the back cervical skin of the ani...

Skin aging is a process influenced by several factors, including estrogen. Estrogen modulates the physiology of skin, and its deficiency in postmenopausal women accelerates skin aging. Administration estrogen can delay process. Phytoestrogens are estrogen-like compounds derived from plants that administered via oral as well astopical routes. Trigonella foenum-graecum, commonly known fenugreek, ...

conclusions the results indicated that sod-loaded in sln was delivered into deep burned skin layer and induced high enzyme activity through the skin. low particle size, application of lecithin as surfactant and low crystallinity index (ci) percentage were important factors for increasing sod penetration through the burned rat skin. percentage of activity by sln dispersions through rat skin was ...

objective(s):skin extracellular matrix, which contains type i and type iii collagens, is involved in skin development. the aim of this study was to investigate type iii collagen distribution pattern as well as its changes during pre and post-natal skin morphogenesis in rats. materials and methods: ventral skins of wistar rat embryos at different stages from 10 to 20 gestational day (e10-e20) an...

many properties of chemicals depend on their stereochemistry. among these, the effects of stereoisomerism on percutaneous absorption of drugs are not well studied. we have previously shown that permeation of tretinoin and isotretinoin (two geometric isomers) through hydrophilic enhancers-treated rat skin is stereoselective. as, depending on their lipophilicity, penetration enhancers can change ...

background one of the main challenges in skin flap surgery is tissue ischemia and following necrosis. the present study compares the effects of fibroblast growth factors 1 and 2 on increasing cutaneous vasculature, improving ischemia, and preventing distal necrosis in ischemic skin flaps in rat model. methods thirty rats were allocated into 3 groups (n=10) and 2×8 cm dorsal random-pattern skin ...