Daily Cosmetic Research Analysis
Across cosmetic and related clinical domains, three studies stand out: a systematic review suggests N-acetylcysteine (NAC) has in vitro antimicrobial efficacy comparable to common endodontic irrigants; a UK hospital review quantifies the rising NHS burden from complications after cosmetic procedures—especially surgeries performed abroad; and a small clinical study reports favorable shifts in adipokines and insulin after massive liposuction. Together, they span bench-to-policy insights impacting
Summary
Across cosmetic and related clinical domains, three studies stand out: a systematic review suggests N-acetylcysteine (NAC) has in vitro antimicrobial efficacy comparable to common endodontic irrigants; a UK hospital review quantifies the rising NHS burden from complications after cosmetic procedures—especially surgeries performed abroad; and a small clinical study reports favorable shifts in adipokines and insulin after massive liposuction. Together, they span bench-to-policy insights impacting dental care, health systems, and metabolic effects of aesthetic surgery.
Research Themes
- Cosmetic tourism and health system burden
- Antimicrobial strategies in endodontics
- Metabolic effects of aesthetic procedures
Selected Articles
1. N-acetylcysteine antimicrobial action against endodontic pathogens-systematic review and meta-analysis.
This systematic review and meta-analysis of seven in vitro studies found that NAC reduces Enterococcus faecalis with efficacy comparable to chlorhexidine and sodium hypochlorite, especially at 25–50 mg/mL over seven days. No clinical studies were identified, and effectiveness varied by exposure time, concentration, and comparator.
Impact: By synthesizing preclinical evidence, this work repositions NAC as a credible candidate intracanal agent and charts parameters (dose/time) for future translational studies, potentially influencing endodontic disinfection strategies.
Clinical Implications: NAC may be considered as a potential alternative or adjunct intracanal medicament, but clinical trials are needed before practice change. Parameters identified (25–50 mg/mL, prolonged exposure) can inform trial design.
Key Findings
- NAC significantly reduced Enterococcus faecalis across included in vitro studies.
- Efficacy was comparable to chlorhexidine and sodium hypochlorite at 25–50 mg/mL over seven days.
- Effectiveness depended on exposure time, concentration, and comparator; no clinical studies were identified.
Methodological Strengths
- Comprehensive multi-database search without language/date limits
- Dual independent screening, data extraction, and risk-of-bias assessment
- Random-effects meta-analysis with subgroup analyses (exposure time, concentration, comparator)
Limitations
- All included studies were in vitro; no clinical trials available
- Significant heterogeneity across methods and outcomes
- Unclear generalizability to clinical endodontics
Future Directions: Conduct well-designed clinical trials to evaluate NAC as an irrigant/intracanal medicament, optimize dosing and exposure times, and assess safety and dentin compatibility.
Effective root canal disinfection is crucial for the success of endodontic treatment. N-acetylcysteine (NAC), known for its antimicrobial properties, has recently been investigated as a potential endodontic irrigant or intracanal medication. This systematic review aims to assess the antimicrobial efficacy of NAC in comparison to sodium hypochlorite, chlorhexidine, and calcium hydroxide against endodontic pathogens. A comprehensive search was conducted in PubMed, Scopus, Web of Science, Cochrane Library, and LILACS databases up to April 2024, without language or date restrictions. The PICO strategy for this review were as follows: population-teeth requiring endodontic treatment; intervention-NAC used as an endodontic irrigant or intracanal medication; comparison-sodium hypochlorite, chlorhexidine, and calcium hydroxide; Outcomes: reduction in microbial load, encompassing clinical and in vitro studies. Risks of bias assessment and data extraction were conducted with two reviewers independently selecting studies, extracting data, and assessing risk of bias. A general meta-analysis was performed across all included studies, with additional meta-analyses evaluating different exposure times, NAC concentrations, control groups and evaluation methods. After removing duplicates, 9170 studies were initially identified, and seven in vitro studies were included in the systematic review, of which five were included in the meta-analysis. Data were compared using standardized mean differences within a random-effects model. No clinical studies using NAC as an antimicrobial agent were identified. The overall meta-analysis demonstrated that NAC effectively reduced Enterococcus faecalis. Further meta-analyses revealed that exposure time, NAC concentration and choice of control group significantly influenced NAC's effectiveness. NAC effectively reduced Enterococcus faecalis, showing comparable antimicrobial activity to CHX and NaOCl, especially at concentrations of 25-50 mg/mL over a 7-day exposure. Despite significant heterogeneity across studies, NAC demonstrated satisfactory antimicrobial effects in vitro. This suggests that NAC merits reconsideration as an effective intracanal medication for clinical use.
2. The rising NHS burden from cosmetic surgery procedures performed abroad and non-surgical procedures performed in the United Kingdom.
This single-center, 17-month retrospective review shows that most surgical complications presenting to an NHS hospital followed procedures performed abroad (96%; majority in Turkey), with an estimated cost burden of £110,690. Patient survey responses highlight cost as a principal driver of cosmetic tourism, underscoring the need for public education and regulatory reforms.
Impact: Provides real-world cost and complication profiles of cosmetic procedures across borders, informing health policy, commissioning, and patient safety initiatives in a rapidly expanding and under-regulated market.
Clinical Implications: Clinicians should screen for complications in returning cosmetic tourists, provide pre-travel counseling, and coordinate with commissioners to anticipate service demand; policymakers should strengthen regulation and public education.
Key Findings
- 96% of surgical complications presented after procedures performed abroad; 73% were performed in Turkey.
- Estimated total hospital cost of managing complications was £110,690 over 17 months.
- Cost was the primary motivation for seeking procedures abroad in the surveyed subset.
Methodological Strengths
- Real-world hospital data over a defined 17-month period
- Combination of record review with patient survey to capture motivations
- Cost estimation provides concrete health-system impact
Limitations
- Single-center retrospective cross-sectional design limits generalizability
- Sample size not specified in the abstract; potential selection bias
- Small survey response (n=7) limits inference on motivations
Future Directions: Multi-center prospective registries of cosmetic procedure complications, standardized cost capture, and evaluation of policy interventions (e.g., regulation, accreditation, public campaigns).
A growing number of patients are presenting to NHS hospitals with post-operative complications following cosmetic surgery and non-surgical procedures performed in the UK. A retrospective cross-sectional review of electronic records in patients presenting with cosmetic surgery/procedure complications was conducted at a London hospital across 17 months, and a patient survey was used to establish motivations for treatment. 96% of surgical patients presenting with complications had their procedure performed abroad, with the majority performed in Turkey (73%). 67% of non-surgical patients had their procedure performed in the UK; 22% were BBLs. Total cost of complications was estimated at £110,690.00. Cheaper cost was the motivating factor for four of seven respondents to the survey in seeking procedures abroad. Going forward, it is important to educate the public on the dangers of cosmetic tourism, and we urge the government to bring about legislative change to improve regulation in a highly unregulated non-surgical market within the UK.
3. The effect of massive liposuction surgery of the abdomen and flanks on insulin and some adipokines.
In 22 patients undergoing massive abdominal/flank liposuction (>5 L aspirate), leptin, resistin, and insulin significantly decreased while adiponectin increased at three months postoperatively. Findings suggest potential metabolic benefits of liposuction as an adjunct to lifestyle measures.
Impact: Provides human biomarker evidence linking a common aesthetic procedure to favorable metabolic profiles, potentially reframing discussions around liposuction beyond contouring.
Clinical Implications: While not a substitute for lifestyle change, liposuction may confer metabolic biomarker improvements; clinicians should counsel on realistic benefits and monitor cardiometabolic risk with longer follow-up.
Key Findings
- Significant postoperative decreases in leptin, resistin, and insulin at 3 months (p<0.001).
- Significant postoperative increase in adiponectin at 3 months (p<0.001).
- Supports a potential beneficial role of massive liposuction on lipid and carbohydrate metabolism.
Methodological Strengths
- Within-subject pre–post design minimizing inter-individual variability
- Standardized ELISA quantification of adipokines and insulin
- Defined postoperative time point (3 months)
Limitations
- Small sample size (n=22) without a control group
- Short follow-up (3 months) with unmeasured lifestyle confounders
- Findings limited to biomarkers; clinical outcomes not assessed
Future Directions: Randomized or controlled prospective studies with larger cohorts and longer follow-up to assess durability, cardiometabolic outcomes, and mechanisms linking adipose removal to systemic metabolism.
Liposuction is one of the most common aesthetic procedures worldwide. Although primarily cosmetic, the effect of liposuction on lipid and carbohydrate metabolism is of interest due to the dynamic role that adipose tissue plays in these processes. However, this effect is not fully understood. In this study, the impact of massive liposuction procedures (aspiration of more than 5 L volume) from the abdomen and flanks on biochemical parameters, including Leptin, Adiponectin, Resistin, and Insulin, was analysed. Twenty-two candidates were recruited, and the mentioned parameters were measured and compared with their postoperative concentrations three months after the procedure using the Enzyme-Linked Immunosorbent Assay (ELISA) technique. We found a significant reduction (p value <0.001) in postoperative measurements of Leptin, Resistin, and Insulin, alongside a significant (p value <0.001) increment in Adiponectin levels. These findings indicate a positive impact of the liposuction procedure on lipid and carbohydrate metabolism. The analysis of our study observations suggests that liposuction surgery could play a role in improving metabolism and may serve as a beneficial adjunct in addressing metabolic disorders when combined with diet, exercise, and lifestyle modifications.