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Acta Poloniae Pharmaceutica 2015Electron paramagnetic resonance (EPR) spectroscopy was used for examination of free radicals in thermally treated vaselinum album (VA). Thermal treatment in hot air as...
Electron paramagnetic resonance (EPR) spectroscopy was used for examination of free radicals in thermally treated vaselinum album (VA). Thermal treatment in hot air as sterilization process was tested. Conditions of thermal sterilization were chosen according to the pharmaceutical norms. Vaselinum album was heated at the following conditions (T--temperature, t--time): T = 160°C and t = 120 min, T = 170°C and t = 60 min and T = 180°C and t = 30 min. The aim of this work was to determine concentration and free radical properties of thermally sterilized VA. EPR analysis for VA was done 15 min after sterilization. EPR measurements were done at room temperature. EPR spectra were recorded in the range of microwave power of 2.2-70 mW. g-Factor, amplitudes (A) and line width (ΔBpp) of the spectra were determined. The shape of the EPR spectra was analyzed. Free radical concentration (N) in the heated samples was determined. EPR spectra were not obtained for the non heated VA. EPR spectra were detected for all thermally sterilized samples. The spectra revealed complex character, their asymmetry depends on microwave power. The lowest free radicals concentration was found for the VA sterilized at 180°C during 30 min. EPR spectroscopy is proposed as the method useful for optimization of sterilization process of drugs.
Topics: Electron Spin Resonance Spectroscopy; Free Radicals; Hot Temperature; Ointments; Petrolatum; Sterilization
PubMed: 26647625
DOI: No ID Found -
BMC Pediatrics May 2023The skin is a major route of infection in the neonatal period, especially in low birthweight (LBW) infants. Appropriate and safe neonatal skin care practices are...
BACKGROUND
The skin is a major route of infection in the neonatal period, especially in low birthweight (LBW) infants. Appropriate and safe neonatal skin care practices are required to reduce this risk. The perceptions and beliefs of mothers and other caregivers towards various neonatal skin care practices in our setting have been documented. Data from Asia suggests that the application of emollient to the skin of LBW infants can promote growth, reduce serious neonatal infections, and potentially reduce mortality. This is the first study to explore the acceptability of emollients and massage as part of neonatal skin care in a low-resource setting in sub-Saharan Africa (SSA) that is representative of the majority of government health facilities in Uganda and many in SSA.
OBJECTIVE
To explore perceptions, beliefs, and current practices regarding neonatal skin care and emollient use in eastern Uganda.
METHODS
We conducted a qualitative study consisting of three focus group discussions (30 participants), eight in-depth interviews with mothers/caregivers of preterm and term neonates and 12 key informant interviews with midwives, doctors and community health workers involved in neonatal care, to explore the perceptions and practices surrounding neonatal skin care and emollient use. Data collected were transcribed and analyzed using thematic content analysis.
RESULTS
Mothers perceived that skin care began in utero. Skincare practices depended on the place of delivery; for deliveries in a health facility the skincare practices were mainly based on the health worker's advice. Vernix caseosa was often washed off due to its perceived undesirability and was attributed to sexual intercourse in the last trimester. Despite their deleterious attributes found in previous studies, petrolatum-based oils, petrolatum-based jellies and talcum baby powders were the most commonly reported items used in neonatal skin care. In our population, there was high acceptability of emollient therapy use; however, neonatal massage was treated with scepticism as mothers feared damaging the vulnerable neonate. Mothers suggested massage and emollient application be undertaken by health workers, if it becomes an intervention.
CONCLUSIONS
In eastern Uganda, the perceptions and beliefs of mothers/caregivers toward neonatal skincare influenced their practices of which some could potentially be beneficial, and others harmful. Emollient use would be easily accepted if adequate sensitisation is conducted and using the gatekeepers such as health workers.
Topics: Infant, Newborn; Infant; Female; Humans; Emollients; Uganda; Skin; Skin Care; Qualitative Research; Petrolatum
PubMed: 37147698
DOI: 10.1186/s12887-023-04040-y -
Skin Therapy Letter 2014Topical corticosteroids (TCS) and topical calcineurin inhibitors (TCIs) are very effective treatments in inflammatory dermatoses, but carry risks with long-term use. TCS...
Topical corticosteroids (TCS) and topical calcineurin inhibitors (TCIs) are very effective treatments in inflammatory dermatoses, but carry risks with long-term use. TCS are associated with cutaneous atrophy and tachyphylaxis and TCIs can be irritating and contain a black box warning of an increased risk of cancers including lymphoma and non-melanomatous skin cancers. Nevertheless, they are appropriate treatments for inflammatory conditions such as psoriasis and atopic dermatitis (AD) and should be used more often with disease flares and less as maintenance therapy. Given the associated risks of long-term continuous use with these pharmacologic agents, alternatives are needed with similar anti-inflammatory and barrier repair properties that can be used indefinitely without risk. Some over-the-counter (OTC) ingredients such as colloidal oatmeal and petrolatum, as well as anti-inflammatory prescription moisturizers (medical device creams), have demonstrated efficacy with little complications in skin barrier repair and symptom relief in steroid-responsive conditions. With regimented application, these non-drug options are safe and effective and can limit the longterm continuous use of TCS or TCIs.
Topics: Adrenal Cortex Hormones; Calcineurin Inhibitors; Ceramides; Dermatitis, Atopic; Dimethylpolysiloxanes; Emollients; Humans; Petrolatum; Skin Diseases
PubMed: 24570291
DOI: No ID Found -
Pharmaceutics Nov 2022We aimed to investigate which base was suitable for preparing transdermal formulations incorporating tulobuterol (TUL) nanoparticles (30-180 nm) in this study. Three...
We aimed to investigate which base was suitable for preparing transdermal formulations incorporating tulobuterol (TUL) nanoparticles (30-180 nm) in this study. Three bases (water-soluble, absorptive, and aqueous ionic cream) were selected to prepare the transdermal formulations, and TUL nanoparticles were prepared with a bead-milling treatment. In the drug release study, the TUL release from the water-soluble ointment was higher than that from the other two ointments. Moreover, the addition of -menthol enhanced TUL nanoparticle release from the ointment, and the rat skin penetration of the TUL water-soluble ointment was also significantly higher than that of the other two ointments. In addition, the drug penetration of the TUL water-soluble ointment with -menthol sustained zero-order release over 24 h, and the skin permeability of TUL increased with TUL content in the ointment. On the other hand, this penetration was significantly inhibited by treatment with a caveolae-mediated endocytosis inhibitor (nystatin). In conclusion, we found that the water-soluble base incorporating TUL nanoparticles and -menthol was the best among those assessed in this study. Furthermore, the pathway using caveolae-mediated endocytosis was related to the skin penetration of TUL nanoparticles in the TUL water-soluble ointment with -menthol. These findings are useful for the design of a transdermal sustained-release formulation based on TUL nanoparticles.
PubMed: 36365248
DOI: 10.3390/pharmaceutics14112431 -
Clinical, Cosmetic and Investigational... 2023The leaves of (Asteraceae) have traditionally been used to treat wounds in several regions of Ethiopia. The purpose of this study was to assess the wound healing...
BACKGROUND
The leaves of (Asteraceae) have traditionally been used to treat wounds in several regions of Ethiopia. The purpose of this study was to assess the wound healing properties of the leaf extract and solvent fractions of in mice. The leaf extract and solvent fractions of have also been evaluated for their anti-oxidant properties because of their impact on the wound healing process.
MATERIAL AND METHODS
Air-dried leaves were extracted using 80% methanol. They were also successively fractionated with n-hexane, ethyl acetate, and methanol. The residue was then macerated in water for 72 hr. Simple ointment bases were formulated according to British Pharmacopoeia. Thereafter, two types of ointment formulations, 2.5% w/w and 5% w/w, were formulated. Wound healing and acute dermal toxicity studies were performed on mice. To assess free radical scavenging activity, a 2,2-diphenyl-2-picrylhydrazyl free radical (DPPH) assay was performed.
RESULTS
In both models, wounds treated with 2.5% and 5% (w/w) of the ME, the aqueous fraction (AQF), methanol fraction (MEF), and ethyl acetate fraction (EAF) ointments demonstrated significant wound healing activity, as shown by enhanced wound contraction, a shortened epithelialization time, increased hydroxyproline content, and enhanced tissue breaking strength. The extract and solvent fractions displayed free radical scavenging activity with IC50 values of 1.2 mg/mL, 1.46 mg/mL, 1.5 mg/mL, and 2.83 mg/mL for ME, AQF, MEF, and EAF, respectively, as compared to 1.42 mg/mL for ascorbic acid.
CONCLUSION
The result of this study indicates that 80% of methanol extract and solvent fractions are endowed with wound healing activity. Additionally, this study has also revealed that ME, AQF, MEF, and EAF have the capacity to scavenge free radicals. The study indicated that the wound healing effect could be attributed to the anti-inflammatory and antioxidant activities.
PubMed: 36742262
DOI: 10.2147/CCID.S393379 -
Journal of Oleo Science Mar 2022Transdermal administration represents a major advancement over traditional pharmaceutical dosing methods. However, a frequent issue is inadequate penetration of the...
Transdermal administration represents a major advancement over traditional pharmaceutical dosing methods. However, a frequent issue is inadequate penetration of the active medicinal component through the skin. As a result, in the current research, we assessed the utility of newly developed petrolatum-liquid crystal (LC) ointment formulations and characterized their biocompatibility and function in the transdermal drug delivery system. To begin, we made petrolatum-LC formulations using p-aminobenzoic acid (PABA) as a hydrophilic model molecule. The viscosity, small-angle X-ray scattering (SAXS), particle diameters, and z-potential were measured to assess the physicochemical properties of the formulations. A dialysis release technique was used to evaluate medication release from petrolatum-LC formulations. In vitro testing was performed to determine the potential to enhance skin penetration. The biocompatibility of the produced formulations was further tested using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay and single-cell gel electrophoresis. According to the results, the novel petrolatum-LC formulations are biocompatible and effective in forming hexosomes. PABA skin penetration was significantly enhanced by the new petrolatum-LC formulations. According to this study, petroleum-LC formulations are more efficient than commercial petrolatum in terms of skin permeability improvement and PABA skin concentration.
Topics: Administration, Cutaneous; Liquid Crystals; Petrolatum; Scattering, Small Angle; Skin; Skin Absorption; X-Ray Diffraction
PubMed: 35173089
DOI: 10.5650/jos.ess21344 -
Immunity, Inflammation and Disease Jun 2023In this study, we investigated the impact of Zibai ointment on wound healing by analyzing the expression levels of two key apoptosis-related factors-B-cell lymphoma 2... (Randomized Controlled Trial)
Randomized Controlled Trial
OBJECTIVE
In this study, we investigated the impact of Zibai ointment on wound healing by analyzing the expression levels of two key apoptosis-related factors-B-cell lymphoma 2 (Bcl-2) and Bcl-2-associated X protein (Bax), in patients following surgery for anal fistula.
METHODS
We included 90 patients with anal fistulas who were treated in the People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine. Patients were randomly assigned to receive treatment with Zibai ointment (n = 45) or petroleum jelly (n = 45). The levels of apoptosis-related factors Bcl-2 and Bax were evaluated using enzyme-linked immunosorbent assay (ELISA), while cell apoptosis was assessed using Terminal deoxynucleotidyl transferase (TdT) dUTP Nick-End Labeling (TUNEL) assay.
RESULTS
The results of ELISA showed that on Day 21 after the surgery, the levels of Bcl-2 and Bax in the Zibai ointment group were significantly different compared to the petroleum jelly group, with values of (60.11 ± 1.31) ng/mL and (7.05 ± 0.01) versus (83.79 ± 1.74) ng/mL and (6.00 ± 0.05) ng/mL, respectively (p < .05). Furthermore, light microscopy revealed a large number of apoptotic cells within the field of vision 14 days postsurgery in the Zibai ointment group, and the healing time in the Zibai ointment group was significantly different from that in the petroleum jelly group (p < .05).
CONCLUSION
We found that Zibai ointment effectively promoted wound healing in patients following anal fistula surgery, possibly by regulating Bcl-2 and Bax apoptosis-related factors.
Topics: Humans; Apoptosis; bcl-2-Associated X Protein; Ointments; Petrolatum; Wound Healing; Rectal Fistula; Drugs, Chinese Herbal
PubMed: 37382254
DOI: 10.1002/iid3.912 -
BioMed Research International 2019which belongs to the family is frequently used to treat hematomas and skin disorders in Mediterranean herbal medicine. This study aims to validate its antioxidant...
which belongs to the family is frequently used to treat hematomas and skin disorders in Mediterranean herbal medicine. This study aims to validate its antioxidant effects and its potential on healing wounds. The ethanolic extract of leaves was formulated as 2.5% and 5% (w/w) in ointment bases on the beeswax and sesame oil. During this study, the ethanolic extract, ointments containing 2.5% and 5% of extract, and the vehiculum were assessed for their total phenol content (TPC), caffeoylquinic acid content (CQC), and antioxidant activities using complementary methods (TAC, the DPPH, ABTS, FRAP, and the BCB). The effects on wound healing of obtained ointments were evaluated by excision of the wound in a mice model for 12 days. Subsequently, the excised wound areas were measured at the 3, 9, and 12 days. The skin tissues were isolated for histological studies. The ointments containing extract (2.5%, 5%) possessed a considerable TPC, CQC, radical scavenging potential, and antioxidant activities compared to the vehiculum. Treated animals with ointments containing extract at 2.5% and 5% showed almost and totally healed wounds compared to the vehiculum and control groups, evidenced by good skin regeneration and reepithelialization. The present work showed the role of antioxidants exerted by its polyphenolic compounds, in particular, caffeoylquinic acids, in enhancing wound healing.
Topics: Animals; Antioxidants; Asteraceae; Ethanol; Free Radical Scavengers; Free Radicals; Mice; Ointment Bases; Phenols; Plant Extracts; Quinic Acid; Wound Healing
PubMed: 31143772
DOI: 10.1155/2019/4081253 -
Scientific Reports Jan 2022Epigallocatechin gallate (EGCG) has the effect to protect skin from ultraviolet B (UVB) induced damages, but it is unstable under ambient conditions, being susceptible...
Epigallocatechin gallate (EGCG) has the effect to protect skin from ultraviolet B (UVB) induced damages, but it is unstable under ambient conditions, being susceptible to become brown in color. Gallocatechin gallate (GCG), an epimer counterpart of EGCG, is more stable chemically than EGCG. The potential effects of GCG against UVB-induced skin damages has not been available. The objective of this study was to investigate the protective effects of GCG against UVB-induced skin photodamages. GCG was topically applied on the skin of hairless mice at three dosage levels (LL, 12.5 mg/mL; ML 25 mg/mL; HL, 50 mg/mL), with EGCG and a commercially available baby sunscreen lotion SPF50 PA as control. The mice were then irradiated by UVB (fluence rate 1.7 µmol/m s) for 45 min. The treatments were carried out once a day for 6 consecutive days. Skin measurements and histological studies were performed at the end of experiment. The results show that GCG treatments at ML and HL levels inhibited the increase in levels of skin oil and pigmentation induced by UVB irradiation, and improved the skin elasticity and collagen fibers. GCG at ML and HL levels inhibited the formation of melanosomes and aberrations in mitochondria of UVB-irradiated skin in hairless mice. It is concluded that GCG protected skin from UVB-induced photodamages by improving skin elasticity and collagen fibers, and inhibiting aberrations in mitochondria and formation of melanosomes.
Topics: Administration, Cutaneous; Animals; Catechin; Female; Male; Melanosomes; Mice; Mice, Hairless; Mice, Inbred BALB C; Mitochondria; Petrolatum; Radiation Dosage; Skin; Sunscreening Agents; Ultraviolet Rays
PubMed: 35079059
DOI: 10.1038/s41598-022-05305-9 -
California Medicine Aug 1961
Topics: Foreign Bodies; Granuloma; Humans; Medical Records; Mineral Oil; Peritoneal Cavity; Petrolatum
PubMed: 13778798
DOI: No ID Found