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Dermatitis : Contact, Atopic,... 2024Widespread use of oxidative hair dyes during the past decades has raised questions on the potential allergy reactions and their management, as well as prevention... (Review)
Review
Widespread use of oxidative hair dyes during the past decades has raised questions on the potential allergy reactions and their management, as well as prevention measures for both professionals and consumers. Allergic contact dermatitis can be elicited by various hair dye-related allergens, though the main problem remains with -phenylenediamine and related aromatic amines. If allergy is suspected, patch testing identifies the responsible hapten. Individuals sensitized to specific permanent hair dyes substances should avoid the exposure to these chemicals, but also be aware of possible cross-sensitization to other similar compounds. Cross-reactions detected in patch-tested populations indicate that one cannot safely use alternatives, although cross-reactivity is not always clinically relevant. An open application hair dye allergy self-test is recommended by manufacturers for early detection of allergy predisposition in consumers, although the lack of standardized conditions makes the efficacy of this process doubtful. Appropriate use of hand gloves, especially nitrile, is the most efficient prevention measure for professional hand eczema. In this systematic review, we focus on cross-reactions among hair dye-related allergens and make an attempt to answer some, frequently encountered by physicians, questions, while presenting the prevalence of the hair dye-related allergens.
Topics: Humans; Allergens; Hair Dyes; Prevalence; Phenylenediamines; Dermatitis, Allergic Contact; Patch Tests
PubMed: 37352419
DOI: 10.1089/derm.2023.0019 -
Neurological Sciences : Official... Oct 2023Neurological deterioration, soon after anti-copper treatment initiation, is problematic in the management of Wilson's disease (WD) and yet reports in the literature are... (Meta-Analysis)
Meta-Analysis Review
INTRODUCTION
Neurological deterioration, soon after anti-copper treatment initiation, is problematic in the management of Wilson's disease (WD) and yet reports in the literature are limited. The aim of our study was to systematically assess the data according to early neurological deteriorations in WD, its outcome and risk factors.
METHODS
Using PRISMA guidelines, a systematic review of available data on early neurological deteriorations was performed by searching the PubMed database and reference lists. Random effects meta-analytic models summarized cases of neurological deterioration by disease phenotype.
RESULTS
Across the 32 included articles, 217 cases of early neurological deterioration occurred in 1512 WD patients (frequency 14.3%), most commonly in patients with neurological WD (21.8%; 167/763), rarely in hepatic disease (1.3%; 5/377), and with no cases among asymptomatic individuals. Most neurological deterioration occurred in patients treated with d-penicillamine (70.5%; 153/217), trientine (14.2%; 31/217) or zinc salts (6.9%; 15/217); the data did not allow to determine if that reflects how often treatments were chosen as first line therapy or if the risk of deterioration differed with therapy. Symptoms completely resolved in 24.2% of patients (31/128), resolved partially in 27.3% (35/128), did not improve in 39.8% (51/128), with 11 patients lost to follow-up.
CONCLUSIONS
Given its occurrence in up to 21.8% of patients with neurological WD in this meta-analysis of small studies, there is a need for further investigations to distinguish the natural time course of WD from treatment-related early deterioration and to develop a standard definition for treatment-induced effects.
Topics: Humans; Hepatolenticular Degeneration; Penicillamine; Trientine; Copper; Nervous System Diseases
PubMed: 37311952
DOI: 10.1007/s10072-023-06895-6 -
Human & Experimental Toxicology 2023This systematic review, conducted according to the PRISMA guidelines, focuses on genotoxicity of oxidative hair dye precursors. The search for original papers published...
This systematic review, conducted according to the PRISMA guidelines, focuses on genotoxicity of oxidative hair dye precursors. The search for original papers published from 2000 to 2021 was performed in Medline, Web of Science, Cochrane registry, Scientific Committee on Consumer Safety of the European Commission and German MAK Commission opinions. Nine publications on genotoxicity of -phenylenediamine (PPD) and toluene-2,5-diamine (-toluylenediamine; PTD) were included, reporting results of 17 assays covering main genotoxicity endpoints. PPD and PTD were positive in bacterial mutation assay, and PPD tested positive also for somatic cell mutations in the Rodent assay . Clastogenicity of PPD and PTD was revealed by chromosomal aberration assay. The alkaline comet assay showed DNA damage after PPD exposure, which was not confirmed where PTD exhibited positive results. PPD induced micronucleus formation , and increased micronucleus frequencies in mice erythrocytes following high dose oral exposure . Based on the results of a limited number of data from the classical genotoxicity assay battery, this systematic review indicates genotoxic potential of hair dye precursors PPD and PTD, which may present an important health concern for consumers and in particular for professional hairdressers.
Topics: Animals; Mice; Hair Dyes; DNA Damage; Comet Assay; Mutation; Oxidative Stress
PubMed: 36879522
DOI: 10.1177/09603271231159803 -
Frontiers in Endocrinology 2023Some studies have reported that the topical forms with aminophylline as the active ingredient appear to be relatively effective on local fat burning while having...
BACKGROUND AND AIMS
Some studies have reported that the topical forms with aminophylline as the active ingredient appear to be relatively effective on local fat burning while having no/minimal side effects. This systematic review accumulates all of the data on the local fat-burning potency of aminophylline topical formulation.
METHODS
Documents were retrieved from PubMed, Web of Science, and Scopus databases until Aug 2022. Data were extracted from clinical trials reporting the reduction in thigh or waist circumference as a result of using topical forms containing aminophylline. Screening of included studies was performed independently by two authors and the quality assessment of included studies was performed based on the Cochrane Collaboration's approach.
RESULTS
Of the 802 initial studies, 5 studies were included in the systematic review. Several concentrations of aminophylline were used in different studies. Most studies administred the topical formulation on participants' one thigh, and the other thigh was considered to be the control for comparing the fat reduction amount. Except for one study, all other studies reported that all participants lost more fat on the treated area than the control groups. The amount of fat reduction differed in studies regarding their different aminophylline concentrations and administration routines. In the case of side effects, except for some studies reporting skin rashes, other studies reported no significant side effects at all.
CONCLUSIONS
Aminophylline topical formulation offers a safe, effective, and much less invasive alternative to cosmetic surgery for localized fat reduction. It seems that the 0.5% concentration, administered five times a week for five weeks is the most potent concentration. However, more high-quality clinical trials are needed to verify this conclusion.
SYSTEMATIC REVIEW REGISTRATION
https://www.crd.york.ac.uk/prospero/, identifier CRD42022353578.
Topics: Humans; Aminophylline; Plastic Surgery Procedures; Drug-Related Side Effects and Adverse Reactions; Control Groups; Databases, Factual
PubMed: 36875487
DOI: 10.3389/fendo.2023.1087614 -
Indian Journal of Ophthalmology Mar 2023The extended use of ethambutol beyond 2 months for treating tuberculosis has increased risk of optic neuropathy. We performed a systematic review of studies evaluating... (Review)
Review
The extended use of ethambutol beyond 2 months for treating tuberculosis has increased risk of optic neuropathy. We performed a systematic review of studies evaluating optic neuropathy in extended ethambutol use since 2010 and compared the outcome with a similar systematic review (1965-2010) by Ezer et al. Literature search was conducted in PubMed, Medline, EMBASE, and Cochrane databases. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. Main outcome measures were visual acuity, color vision, visual field defects, optical coherence tomography (OCT), and visual evoked potential (VEP). The JBI Critical Appraisal Checklists were used for quality assessment. Twelve studies were selected (out of 639 studies) for analysis of ethambutol optic neuropathy. Visual acuity improvement after stopping ethambutol was statistically significant. Similar improvement was not noted for other outcome measures. On comparing the results of this review with those by Ezer et al., significant improvement was noted in visual acuity, color vision, and visual field defects. Moreover, more patients reported increased optic nerve toxicity, color vision defects, and visual field defects in the present review. Hence, we conclude that the extended use of ethambutol beyond 2 months results in significant optic nerve toxicity. Further randomized controlled trials with different populations are needed to understand the magnitude of this issue.
Topics: Humans; Ethambutol; Evoked Potentials, Visual; Optic Nerve Diseases; Optic Nerve; Checklist; Rare Diseases
PubMed: 36872667
DOI: 10.4103/ijo.IJO_1920_22 -
Clinical and Experimental Dental... Apr 2023The objective of this review is to assess the available literature systematically related to the effect of silver diamine fluoride (SDF) for the management of occlusal...
OBJECTIVES
The objective of this review is to assess the available literature systematically related to the effect of silver diamine fluoride (SDF) for the management of occlusal and root carious lesions in permanent teeth regardless of age. MATERIALS AND METHODS: This systematic review was conducted according to the Cochrane Handbook for Systematic Reviews of Interventions and Preferred Reporting Items for Systematic Review and Meta-Analyses statement. A literature search was performed using PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, Web of Science, DOAJ, and Open Gray with no language restrictions up to December 2022. Three reviewers critically assessed the studies for eligibility. Any disputes between the reviewers were handled by a fourth independent reviewer. The quality assessment and data extraction of the studies were performed.
RESULTS
A total of 2176 studies were screened. The titles and abstracts of the studies were then reviewed (n = 346), and 52 studies met the search criteria. Following the full-text review, 11 studies investigated the effect of SDF against other treatments such as chlorhexidine, sodium fluoride, ammonium bifluoride, tricalcium silicate paste, casein phosphopeptide amorphous calcium phosphate, glass ionomer cement (GIC) combined with fluoride varnish, resin-modified GIC, and atraumatic restorative treatment were assessed.
CONCLUSIONS
Within the limitations of this review, the use of SDF is promising with high preventative fractions in permanent teeth of children and older populations when compared to other topical applications such as dental varnish containing sodium fluoride.
Topics: Child; Humans; Dental Atraumatic Restorative Treatment; Dental Caries; Fluorides, Topical; Sodium Fluoride
PubMed: 36823765
DOI: 10.1002/cre2.716 -
Nederlands Tijdschrift Voor... Feb 2023Endodontic irrigants negatively influence the physical properties of dentine. The effect of sodium hypochlorite and ethylenediaminetetraacetic acid (EDTA) on the bond...
Endodontic irrigants negatively influence the physical properties of dentine. The effect of sodium hypochlorite and ethylenediaminetetraacetic acid (EDTA) on the bond strength to dentine was investigated in a systematic review. Inclusion criteria were the following: a microtensile or microshear test, the irrigants sodium hypochlorite and/or EDTA, an irrigation time of ≥ 5 minutes of sodium hypochlorite, an irrigation protocol for endodontic treatment, human dentine, the presence of a control group and no post space preparation. Of the 188 eligible articles, 13 were suitable for inclusion. There was strong evidence that rinsing with sodium hypochlorite and also additional rinsing minutes with ethylenediaminetetraacetic acid leads to minimum bond strength to dentin for a two-step self-etching adhesive. For a two-step etch-and-rinse adhesive, the bond strength is approximately significant after rinsing with sodium hypochlorite (rinsing time: 10-60 minutes).
Topics: Humans; Edetic Acid; Composite Resins; Sodium Hypochlorite; Dentin-Bonding Agents; Dental Cements; Dental Bonding; Tooth, Nonvital; Root Canal Irrigants; Resin Cements; Dentin; Materials Testing; Tensile Strength
PubMed: 36748682
DOI: 10.5177/ntvt.2023.02.22073 -
Journal of Esthetic and Restorative... Mar 2023To the effectiveness of different strategies to overcome silver diamine fluoride (SDF)-mediated tooth staining. (Review)
Review
OBJECTIVE
To the effectiveness of different strategies to overcome silver diamine fluoride (SDF)-mediated tooth staining.
MATERIALS AND METHODS
Four online databases (PubMed, ScienceDirect, Scopus, and Web of Science) were searched using different MeSH terms and Boolean Operators to retrieve the articles (until June 2021), followed by a hand-search of the reference list of the included articles. All full-text, original studies in English that evaluated SDF staining and at least one SDF modification/alternative were included.
RESULTS
Among the assessed studies, nine studies explored the stain-minimization effect of potassium iodide (KI) post-application following SDF treatment. Among these, eight concluded that KI application after SDF treatment significantly reduced tooth staining, while one showed marginal staining following glass ionomer restoration of the SDF-treated dentine. Additionally, one study applied potassium fluoride (KF) and silver nitrate (AgNO ) concurrently to mitigate SDF-mediated staining. One study compared SDF staining with polyethylene glycol (PEG)-coated nanoparticles containing sodium fluoride (NaF), and another used nanosilver fluoride (NSF) for staining comparison with SDF.
CONCLUSIONS
Within the limitations of this study, the addition of different materials to SDF has proven to be a beneficial strategy for overcoming tooth staining associated with SDF. Future studies are warranted, particularly clinical trials, to validate these findings.
CLINICAL SIGNIFICANCE
SDF-mediated tooth staining is a serious concern that limits its clinical use. A review of various strategies to overcome this problem will help clinicians enhance its clinical use and patient acceptance.
Topics: Humans; Dental Caries; Fluorides, Topical; Silver Compounds; Potassium Iodide; Staining and Labeling; Tooth Discoloration; Cariostatic Agents
PubMed: 36628650
DOI: 10.1111/jerd.13013 -
Clinical Infectious Diseases : An... May 2023Optimal doses of first-line drugs for treatment of drug-susceptible tuberculosis in children and young adolescents remain uncertain. We aimed to determine whether... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Optimal doses of first-line drugs for treatment of drug-susceptible tuberculosis in children and young adolescents remain uncertain. We aimed to determine whether children treated using World Health Organization-recommended or higher doses of first-line drugs achieve successful outcomes and sufficient pharmacokinetic (PK) exposures.
METHODS
Titles, abstracts, and full-text articles were screened. We searched PubMed, EMBASE, CENTRAL, and trial registries from 2010 to 2021. We included studies in children aged <18 years being treated for drug-susceptible tuberculosis with rifampicin (RIF), pyrazinamide, isoniazid, and ethambutol. Outcomes were treatment success rates and drug exposures. The protocol for the systematic review was preregistered in PROSPERO (no. CRD42021274222).
RESULTS
Of 304 studies identified, 46 were eligible for full-text review, and 12 and 18 articles were included for the efficacy and PK analyses, respectively. Of 1830 children included in the efficacy analysis, 82% had favorable outcomes (range, 25%-95%). At World Health Organization-recommended doses, exposures to RIF, pyrazinamide, and ethambutol were lower in children than in adults. Children ≤6 years old have 35% lower areas under the concentration-time curve (AUCs) than older children (mean of 14.4 [95% CI 9.9-18.8] vs 22.0 [13.8-30.1] μg·h/mL) and children with human immunodeficiency virus (HIV) had 35% lower RIF AUCs than HIV-negative children (17.3 [11.4-23.2] vs 26.5 [21.3-31.7] μg·h/mL). Heterogeneity and small sample sizes were major limitations.
CONCLUSIONS
There is large variability in outcomes, with an average of 82% favorable outcomes. Drug exposures are lower in children than in adults. Younger children and/or those with HIV are underexposed to RIF. Standardization of PK pediatric studies and individual patient data analysis with safety assessment are needed to inform optimal dosing.
Topics: Adult; Adolescent; Child; Humans; Antitubercular Agents; Pyrazinamide; Ethambutol; Tuberculosis; Rifampin; Isoniazid; HIV; HIV Infections
PubMed: 36609692
DOI: 10.1093/cid/ciac973 -
BioMed Research International 2022. has been implicated in infections of treated root canals. Current irrigants and intracanal medicaments cannot eliminate completely from the root canal. Silver... (Review)
Review
. has been implicated in infections of treated root canals. Current irrigants and intracanal medicaments cannot eliminate completely from the root canal. Silver diamine fluoride (SDF) prevents caries by promoting remineralization and exerting an antibacterial effect. Studies suggest that SDF may possess antibacterial properties against . The purpose of this review is to systematically and critically analyze the literature, focusing on the use of SDF as an intracanal medicament or irrigant, when compared to other antibacterial agents. . The focused question was "Is the antibacterial effect of SDF against better than other intracanal medicaments and irrigants?" Using the keywords ((silver diamine fluoride) AND ()) AND ((sodium hypochlorite) OR (NaOCl) OR (chlorhexidine) OR (calcium hydroxide) OR (Ca(OH))), an electronic search was conducted on the following databases: PubMed/MEDLINE, ISI Web of Science, Scopus, EMBASE, and Google Scholar. The clinical trial registers ClinicalTrials.gov and CONTROL were also searched using the same keywords. General characteristics and outcomes were extracted, and quality of the studies was assessed using the Preferred Reporting Items for Laboratory studies in Endodontology (PRILE) guidelines. . Six articles (five studies and one study) were included in this systematic review. In the majority of the studies, SDF had equal or better antibacterial efficacy against compared to calcium hydroxide, sodium hypochlorite, and chlorhexidine. However, the majority of the studies did not fulfill several items in the PRILE criteria and had numerous sources of bias. . Within the limitations of the systematic review and the studies reviewed, SDF may be effective against and therefore could be used as an intracanal medicament and/or irrigant to prevent reinfections of the root canals and improve the outcomes of endodontic treatment. However, animal and clinical studies should be carried out to determine the efficacy of SDF in endodontics. . The protocol for this review was registered on PROSPERO. Registration number: CRD42021224741.
Topics: Animals; Chlorhexidine; Enterococcus faecalis; Sodium Hypochlorite; Calcium Hydroxide; Anti-Infective Agents; Anti-Bacterial Agents; Dental Pulp Cavity
PubMed: 36567909
DOI: 10.1155/2022/6544292