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In Silico Pharmacology 2022Meclizine is antihistamine and is used in combination with pyridoxine to treat motion sickness. The in-silico study of meclizine prediction studied showed that meclizine...
Meclizine is antihistamine and is used in combination with pyridoxine to treat motion sickness. The in-silico study of meclizine prediction studied showed that meclizine has anti-eczema activity with possible activity 95. This research aimed to explore the anti-eczema activity of meclizine. Therefore, five formulations of meclizine ointment have been prepared using different bases (white base, simple ointment base, hydrophilic petrolatum base, hydrophilic, and emulsifying ointment bases). The efficiency of meclizine ointment has been evaluated by testing the physical compatibility and stability, homogeneity and irritant effect, absorbance and spreadability, chemical identification, calibration curve, drug content (assay), and dissolution test. This is followed by evaluating the ointment's effectiveness on volunteers and molecular docking. Five creams trials have been prepared, and two formulas (F3, and F5) have been selected for further evaluation. The formulas three and five (F3, F5) have passed the physical and chemical tests and showed compatibility, homogenous, absorbed, non-irritant, and stable with calibration curve (R = 0.9999). Then, the F3 formula was selected by testing them on seven volunteers after evaluating the irritant test. Four of the volunteers showed excellent recovery, and three of the volunteers suffered from uncomforting feelings and the formation of new pills. Therefore, F5 has been tested by eight volunteers that contain high oleaginous activity; five showed an excellent recovery, while three of the volunteers showed no difference. According to that, F5 is more efficient for eczema patients than F3, and Meclizine showed promising activity as an anti-eczema that requires further evaluation in the future.
PubMed: 36062215
DOI: 10.1007/s40203-022-00129-x -
Journal of the European Academy of... Jun 2022Benzyl alcohol is a widely used preservative, solvent and fragrance material. According to published data, it is a rare sensitizer in humans.
BACKGROUND
Benzyl alcohol is a widely used preservative, solvent and fragrance material. According to published data, it is a rare sensitizer in humans.
OBJECTIVES
To identify characteristics and sensitization patterns of patients with positive patch test reactions to benzyl alcohol and to check the reliability of the patch test preparation benzyl alcohol 1% pet.
PATIENTS AND METHODS
Retrospective analysis of data from the Information Network of Departments of Dermatology (IVDK), 2010-2019.
RESULTS
Of 70 867 patients patch tested with benzyl alcohol 1% pet., 146 (0.21%) showed a positive reaction, most of them (89%) only weakly positive. The number of doubtful and irritant reactions significantly exceeded the number of positive reactions. Reproducibility of positive test reactions was low. Among benzyl alcohol-positive patients, compared to benzyl alcohol-negative patients, there were significantly more patients with leg dermatitis (17.8% vs. 8.6%), more patients aged 40 years or more (81.5% vs. 70.5%) and more patients who were tested because of a suspected intolerance reaction to topical medications (34.9% vs. 16.6%). Concomitant positive reactions were mainly seen to fragrances, preservatives and ointment bases.
CONCLUSIONS
Sensitization to benzyl alcohol occurs very rarely, mainly in patients with stasis dermatitis. In view of our results, benzyl alcohol cannot be regarded as a significant contact allergen, and therefore marking it as skin sensitizer 1B and labelling it with H 317 is not helpful.
Topics: Allergens; Benzyl Alcohol; Dermatitis, Allergic Contact; Humans; Patch Tests; Perfume; Preservatives, Pharmaceutical; Reproducibility of Results; Retrospective Studies
PubMed: 35080274
DOI: 10.1111/jdv.17968 -
Biomedicine & Pharmacotherapy =... Jun 2022The phytochemical analysis of the investigated Immortelle essential oil revealed the presence of monoterpenes and sesquiterpenes as major components that might be...
The phytochemical analysis of the investigated Immortelle essential oil revealed the presence of monoterpenes and sesquiterpenes as major components that might be efficient as a wound healing potential agent. The present study aimed to develop an ointment based on the Immortelle essential oil and investigate its wound healing effects on excision wounds in diabetic rats. The topical formulated Immortelle ointment was subjected to pharmaco-technical characterization. Thirty-two diabetic rats with the induced excision wound were used to evaluate in vivo wound healing effects of ointment. The animals were randomly divided into four groups untreated or topically treated with either a 1% silver sulfadiazine, the ointment base, or Immortelle ointment. The response to the treatment was assessed by macroscopic, biochemical and histopathological analysis. The ointment, compatible with the skin remained stable for 6 months. Topical application of the Immortelle ointment showed the highest wound contraction with the highest content of hydroxyproline in comparison to the all examined groups. The Immortelle ointment showed significant wound contraction from day 7 to day 21 as compared to other groups. On the day 21, there was an average of 99.32% wound contraction in the Immortelle group, whereas the mean wound contraction in the negative control and ointment base group was 71.36% and 81.26% respectively. The histopathological results validated the potential wound healing effect of Immortelle ointment with evident post-excision scar maturation and increased collagen fibers density. Our findings revealed that the Immortelle ointment approach might serve as a promising and innovative tool for wound healing.
Topics: Animals; Diabetes Mellitus, Experimental; Oils, Volatile; Ointment Bases; Ointments; Rats; Skin; Wound Healing
PubMed: 35429742
DOI: 10.1016/j.biopha.2022.112941 -
Biological & Pharmaceutical Bulletin 2023Wound-healing deficits of the skin, one of the most common complications in patients with diabetes, delay wound healing, significantly reducing the patient's QOL....
Wound-healing deficits of the skin, one of the most common complications in patients with diabetes, delay wound healing, significantly reducing the patient's QOL. Therefore, the topical treatment of wound areas with drug-containing ointments and dressings is important. In this study, we investigated the effect of various ointment bases on skin wound healing in normal and streptozotocin-induced diabetic rats (STZ rats). Three ointment bases were used: white ointment (oil-based), absorbent cream (emulsion-based, w/o), and macrogol ointment (water-based). Skin wound healing in STZ rats was delayed compared with that in normal rats. Each of the three ointment bases was applied to the skin wound area in normal rats, and there was no difference in the therapeutic effect. The therapeutic effect of both white ointment and absorbent cream was higher in the STZ rats group than that in the non-treated group, and delayed wound healing was observed in STZ rats treated with macrogol ointment. In conclusion, skin wound healing in STZ rats is affected by the properties of the ointment base, and it is important to use an ointment base that controls the drying of the wound area in STZ rats. These findings provide information for the selection of ointment bases useful for application to skin wounds in patients with diabetes.
Topics: Rats; Animals; Ointment Bases; Ointments; Streptozocin; Diabetes Mellitus, Experimental; Quality of Life; Skin; Polyethylene Glycols
PubMed: 37121696
DOI: 10.1248/bpb.b22-00871 -
Gels (Basel, Switzerland) Nov 2023The purpose of this work was to develop a novel topical formulation of econazole nitrate based on gel that can be easily scaled up in one pot for the potential treatment...
The purpose of this work was to develop a novel topical formulation of econazole nitrate based on gel that can be easily scaled up in one pot for the potential treatment of fungal and yeast infections. Econazole nitrate, a topical antifungal, is used to treat tinea versicolor, tinea pedis, and tinea cruris. Compared to applying cream or ointment, topical gels offer numerous advantages, one of which is that the drug is released more quickly to the intended site of action. A viscous mixture of propylene glycol, Capmul MCM C8, methyl and propyl paraben, and econazole nitrate were mixed together before being formulated into the optimized Carbopol gel bases. The gel's color, appearance, and homogeneity were assessed visually. For every formulation, the drug content, pH, viscosity, spreadability, and gel strength were characterized. The cup plate diffusion method was used to evaluate the anti-fungal activity of the prepared formulations. To assess the behavior of the developed system, studies on in vitro release and mechanism were conducted. The manufactured formulations were transparent, pale yellow, and exhibited excellent homogeneity. The pH of each formulation was roughly 6.0, making them suitable for topical use. The concentration of Carbopol 940 resulted in a significant increase in viscosity and gel strength but a significant decrease in spreadability. It was demonstrated that the prepared formulations inhibited the growth of and . In contrast, the standard blank gel showed no signs of antifungal action. By increasing the concentration of Carbopol 940, the in vitro release profile of econazole nitrate significantly decreased. Following the Korsmeyer-Peppas model fitting, all formulations exhibited n values greater than 0.5 and less than 1, indicating that diffusion and gel swelling control econazole nitrate release.
PubMed: 38131915
DOI: 10.3390/gels9120929 -
Turkish Journal of Pharmaceutical... Oct 2021Combinatorial drugs are among the leading pharmacotherapeutic agents, including those used for the treatment of herpetic infections, which require complex treatment. We...
OBJECTIVES
Combinatorial drugs are among the leading pharmacotherapeutic agents, including those used for the treatment of herpetic infections, which require complex treatment. We have developed a soft dosage form of ointment, which includes acyclovir and miramistin, which have antimicrobial, anti-inflammatory, and local immunoadjuvant activity. The study aimed to investigate the rheological properties of ointment bases in order to substantiate the composition of a soft dosage form with antiviral effect using the active ingredients miramistin and acyclovir.
MATERIALS AND METHODS
The object of the study was to determine the heterogeneous and homogeneous composition models of the bases made using a wide range of excipients. Structural and mechanical studies were performed using the "Rheolab QC" rotary viscometer by Anton Paar (Austria) with coaxial cylinders CC27/S-SN29766. The rheological parameters were investigated at a temperature of 25°C±0.5°C. The samples were thermostated using a thermostat MLM U15c. The batch of sample weighing about 15.0±0.5 g was placed in the container of an external stationary cylinder. The required temperature of the experiment was set and the thermostating time was 20 min. The device is equipped with RheoPlus 32 V3.62 software.
RESULTS
The rheological behavior of the model compositions was analyzed in terms of indicators, such as yield strength, hysteresis square, coefficients of dynamic flow, and mechanical stability. It was found that all samples have a non-Newtonian pseudoplastic type of flow. The model of spreading optimums was used to evaluate consumer properties. According to the rheological parameters, it is advisable to use the sample based on paraffin and vaseline oil for further research.
CONCLUSION
The findings from this study will be relevant in the development of the soft dosage form for the treatment of herpes viral diseases.
PubMed: 34719191
DOI: 10.4274/tjps.galenos.2021.93457 -
International Dental Journal Oct 2022The aim of this work was to review the protocol of the use of silver diamine fluoride (SDF) for arresting caries, specifically the application time. (Review)
Review
OBJECTIVE
The aim of this work was to review the protocol of the use of silver diamine fluoride (SDF) for arresting caries, specifically the application time.
METHOD
Two researchers searched manufacturers' instructions, YouTube videos, and 5 databases (Embase, Medline, PubMed, Scopus, and Web of Science). Manufacturers' instructions, videos from national dental organisations, and peer-reviewed journal articles that published the SDF application protocol in English for arresting caries were selected.
RESULTS
The review included 14 protocols from 15 publications from 4 manufacturers, 3 dental associations, and 7 author teams (one team had 2 articles). The American Dental Association and the British Society of Paediatric Dentistry provided their SDF application protocols on YouTube. The American Academy of Paediatric Dentistry and 7 author teams published their protocols in journal articles. Seven publications suggested an SDF application time of 60 seconds. Seven publications suggested a time range of 10 seconds to 240 seconds. Two publications suggested caries excavation, but 4 publications suggested no caries excavation before SDF application. The procedures from at least 5 publications involved protecting the gingiva with petroleum jelly, isolating the carious tooth with cotton rolls, drying the carious lesion with a 3-in-1 syringe, applying SDF solution with a micro brush for 60 seconds, removing excess SDF solution with gauze, and applying fluoride varnish to the SDF-treated lesion.
CONCLUSIONS
Although the SDF application protocol is simple and straightforward, the published protocols could be different. Most publications suggested an SDF application time of 60 seconds, which can be long, particularly for young children and older adults.
Topics: Aged; Cariostatic Agents; Child; Child, Preschool; Dental Caries; Fluorides, Topical; Humans; Petrolatum; Quaternary Ammonium Compounds; Silver Compounds
PubMed: 35843730
DOI: 10.1016/j.identj.2022.06.006 -
Neuromodulation : Journal of the... Jul 2023Staphylococcus aureus (S aureus) is the foremost bacterial cause of surgical-site infection (SSI) and is a common source of neuromodulation SSI. Endogenous colonization... (Meta-Analysis)
Meta-Analysis Review
INTRODUCTION
Staphylococcus aureus (S aureus) is the foremost bacterial cause of surgical-site infection (SSI) and is a common source of neuromodulation SSI. Endogenous colonization is an independent risk factor for SSI; however, this risk has been shown to diminish with screening and decolonization.
MATERIALS AND METHODS
A systematic review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using the PubMed, Cochrane Library, and Embase data bases from inception to January 1, 2022, for the purposes of identifying all studies reporting on the use of S aureus swabbing and/or decolonization before neuromodulation procedures. A random-effects meta-analysis was performed using the metaphor package in R to calculate odds ratios (OR).
RESULTS
Five observational cohort studies were included after applying the inclusion and exclusion criteria. The average study duration was 6.6 ± 3.8 years. Three studies included nasal screening as a prerequisite for subsequent decolonization. Type of neuromodulation included spinal cord stimulation in two studies, deep brain stimulation in two studies, intrathecal baclofen in one study, and sacral neuromodulation in one study. Overall, 860 and 1054 patients were included in a control or intervention (ie, screening and/or decolonization) group, respectively. A combination of nasal mupirocin ointment and a body wash, most commonly chlorhexidine gluconate soap, was used to decolonize throughout. Overall infection rates were observed at 59 of 860 (6.86%) and ten of 1054 (0.95%) in the control and intervention groups, respectively. Four studies reported a significant difference. The OR for intervention (screen and/or decolonization) vs no intervention was 0.19 (95% CI, 0.09-0.37; p < 0.001). Heterogeneity between studies was nonsignificant (I = 0.43%, τ = 0.00).
CONCLUSIONS
Preoperative S aureus swabbing and decolonization resulted in significantly decreased odds of infection in neuromodulation procedures. This measure may represent a worthwhile tool to reduce neuromodulation SSI, warranting further investigation.
Topics: Humans; Staphylococcus aureus; Mupirocin; Staphylococcal Infections; Surgical Wound Infection; Anti-Bacterial Agents
PubMed: 36198512
DOI: 10.1016/j.neurom.2022.07.013 -
Turkiye Parazitolojii Dergisi Mar 2021Phthiriasis palpebrarum is a rare eyelid infestation caused by (pubic lice) that is often confused with other causes of blepharoconjunctivitis. In this study, we report...
Phthiriasis palpebrarum is a rare eyelid infestation caused by (pubic lice) that is often confused with other causes of blepharoconjunctivitis. In this study, we report the case of a 49-year-old male patient with phthiriasis palpebrarum who presented with itching and eye irritation in the left eye and had undergone treatment for conjunctivitis in the past month. Biomicroscopic examination revealed a dense population of motile and translucent lice and eggs, more intensely on the upper lid. For treatment, the lice were first cleaned mechanically, eyelashes were cut from the bottom, and eggs and lice were removed from the eye, after which petrolatum jelly (vsaseline) was applied to the lids for 10 days. In the control examination, no lice and eggs were observed.
Topics: Animals; Blepharitis; Eyelashes; Humans; Lice Infestations; Male; Middle Aged; Petrolatum; Phthirus; Treatment Outcome
PubMed: 33685072
DOI: 10.4274/tpd.galenos.2020.6937 -
Pharmaceuticals (Basel, Switzerland) Oct 2021The multifunctional role of the human skin is well known. It acts as a sensory and immune organ that protects the human body from harmful environmental impacts such as... (Review)
Review
The multifunctional role of the human skin is well known. It acts as a sensory and immune organ that protects the human body from harmful environmental impacts such as chemical, mechanical, and physical threats, reduces UV radiation effects, prevents moisture loss, and helps thermoregulation. In this regard, skin disorders related to skin integrity require adequate treatment. Lipid nanoparticles (LN) are recognized as promising drug delivery systems (DDS) in treating skin disorders. Solid lipid nanoparticles (SLN) together with nanostructured lipid carriers (NLC) exhibit excellent tolerability as these are produced from physiological and biodegradable lipids. Moreover, LN applied to the skin can improve stability, drug targeting, occlusion, penetration enhancement, and increased skin hydration compared with other drug nanocarriers. Furthermore, the features of LN can be enhanced by inclusion in suitable bases such as creams, ointments, gels (i.e., hydrogel, emulgel, bigel), lotions, etc. This review focuses on recent developments in lipid nanoparticle systems and their application to treating skin diseases. We point out and consider the reasons for their creation, pay attention to their advantages and disadvantages, list the main production techniques for obtaining them, and examine the place assigned to them in solving the problems caused by skin disorders.
PubMed: 34832865
DOI: 10.3390/ph14111083