Effect of aromatherapy on cancer complications: A systematic review

Effects of aromatherapy on nausea and vomiting in patients with cancer: A systematic review and meta-analysis of randomized controlled trials

BACKGROUND

and purpose: Aromatherapy offers a low-risk solution for effectively managing common nausea and vomiting in cancer patients. This systematic review and meta-analysis aimed to assess its impact on these symptoms to facilitate practical guidelines establishment.

METHODS

PubMed, Web of Science, Cochrane Library, MEDLINE, CINAHL, and Embase were searched for articles published until April 30, 2023. Inclusion criteria were randomized controlled trials (RCTs) on the effect of aromatherapy on nausea and vomiting in patients with cancer (age ≥18 years). The effect size was calculated using standardized mean differences (SMDs) with a random effects model. Subgroup analyses, meta-analysis of variance, and meta-regression were performed using the "meta" package in R version 4.0.2. Heterogeneity was assessed using I2 statistics. Sensitivity and publication bias analyses were performed; two reviewers independently assessed risk of bias using Cochrane's risk-of-bias tool 2.0.

RESULTS

Twenty-five RCTs across 10 articles revealed that aromatherapy reduced overall nausea and vomiting in patients with cancer with significant efficacy (SMD = -0.81, 95 % confidence interval [CI]: -1.11 to -0.52). Furthermore, aromatherapy reduced nausea (SMD = -0.85, 95 % CI: -1.23 to -0.46) and combined nausea and vomiting (SMD = -1.08, 95 % CI: -1.68 to -0.47), but not vomiting alone (SMD = -0.24, 95 % CI: -1.03 to 0.55). Inhalation and massage yielded positive results, especially in chemotherapy-induced cases; peppermint oil was particularly successful.

CONCLUSION

Our findings underscore aromatherapy's value in managing cancer treatment-associated nausea and vomiting. Conclusive evidence on aromatherapy-led nausea reduction is lacking due to limited RCTs; research is warranted for robust conclusions.

Effects of Aromatherapy on Physical and Mental Health of Cancer Patients Undergoing Radiotherapy and/or Chemotherapy: A Meta-Analysis

BACKGROUP

Currently, aromatherapy is being increasingly utilized in clinical practice, particularly in managing the side effects associated with radiotherapy and chemoradiotherapy. However, it remains to be established whether aromatherapy can effectively alleviate these symptoms.

OBJECTIVE

To investigate the effects of aromatherapy on the physical and mental health of patients with cancer undergoing radiotherapy and chemotherapy.

METHODS

Seven databases were researched from inception until September 29, 2023, including PubMed, Scopus, and Web of Science, Chinese National Knowledge Infrastructure, Wanfang database, China Biology Medicine disc and VIP Chinese Medical Journal Database. Review Manager version 5.3 was utilized for data analysis. The Cochrane Risk of Bias tool RoB2 was employed to evaluate the quality of the literature included in the study. Evidence quality rating was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach through the GRADEpro GDT online tool.

RESULTS

Nineteen studies involving 1,541 patients were included. Aromatherapy can alleviate nausea [relative risk (RR)=0.64, 95% confidence interval (CI): 0.53 to 0.78, P<0.05, I2=46%; standardized mean difference (SMD)=-0.86, 95% CI: -1.21 to -0.51, P<0.05, I2=64%] and vomiting (RR=0.54, 95% CI: 0.42 to 0.69, P<0.05, I2=35%; SMD=-1.28, 95% CI: -1.52 to -1.03, P<0.05, I2=92%), improve sleep disorders [mean difference (MD)=-3.39, 95% CI: -3.95 to -2.84, P<0.05, I2=0%], relieve pain (SMD=-1.58, 95% CI: -1.96 to -1.21, P<0.05, I2=0%), mitigate fatigue (SMD=-1.28, 95% CI: -2.44 to -0.11, P<0.05, I2=93%) and enhance quality of life (SMD=0.50, 95% CI: 0.22 to 0.79, P<0.05, I2=0%) in cancer patients after radiotherapy and chemotherapy, but it may not have a significant effect on anxiety. The risk of bias was high in the included studies using the Cochrane Risk of Bias tool RoB2, and no studies were considered to be of high grade according to the GRADE system.

CONCLUSIONS

Aromatherapy is an efficacious, safe and economic adjunctive therapy for cancer patients, which can mend the physical symptoms and mental health of cancer patients. However, more high-quality studies are needed to verify it. (PROSPERO registration No. CRD42023390171).

Effect of peppermint inhalation versus Swedish massage on chemotherapy induced-nausea and vomiting in children with leukemia: Multi-arm randomised trial design

BACKGROUND

Chemotherapy is the foremost treatment for children with leukemia, while causing different serious side-effects. Chemotherapy-induced nausea and vomiting are the most common deliberating side effects and critical concerns of pediatric oncology nurses among those children.

AIM

To investigate the effect of peppermint inhalation versus Swedish massage on chemotherapy-induced nausea and vomiting in children with leukemia.

DESIGN

A multi-arm randomised trial design with three parallel groups.

SETTING

This study was conducted at outpatient and inpatient Hematology/leukemia Units at Alexandria University Children's Hospital at Smouha.

METHODS

Seventy-five children with leukemia received the first chemotherapy session. They were randomly allocated into three equal groups, 25 children in each group (control, peppermint inhalation, and Swedish massage groups). Every child is assessed for nausea and vomiting before chemotherapy administration and after for three days for consecutive three sessions of treatment.

RESULTS

Study findings revealed that children in peppermint inhalation and Swedish massage groups showed significant reduction in mean total score of chemotherapy-induced nausea and vomiting among peppermint inhalation and Swedish groups (15.120 ± 4.585 and 14.680 ± 3.158, respectively) was observed on third chemotherapy session than in control group (45.680 ± 5.793) (p < 0.001).

CONCLUSION

It can be concluded that Swedish massage and peppermint inhalation therapies may have significant antiemetic effects as alleviating the chemotherapy induced nausea and vomiting for children with leukemia.

PRACTICE IMPLICATIONS

This study directs the pediatric oncology nurses to incorporate peppermint inhalation and Swedish massage therapies besides antiemetic drugs in pediatric oncology unit protocols for management of chemotherapy induced nausea and vomiting.

What Does a Community Think About Aromatherapy?

The awareness and usage of aromatherapy applications are increasing day by day in society. The current study aims to evaluate the thoughts and attitudes of individuals toward aromatherapy in Türkiye and to determine factors affecting the use of aromatherapy. This community-based descriptive study is conducted throughout Türkiye. Nine hundred eighty-five questionnaires were suitable for data quality. SPSS 23.0 statistical package program was used, and the statistical significance level was accepted as P value of less than .05. Approximately 72.4% of the participants have heard of aromatherapy. The rate of hearing about the concept of aromatherapy was found to be statistically significantly higher among women (P = .000), those residing in a province/district (P = .011), and those working in an income-generating positions (P = .003). It was determined that 58.9% of the participants used any essential oil. The 5 most commonly used essential oils are lavender, tea tree, peppermint, rose, and thyme, respectively. The rate of essential oil use in women is higher than in men (P = .000). The conditions in which essential oils are most frequently used are to provide beauty to the skin (51.7%), skin diseases (51.0%), and respiratory tract diseases (46.0%), respectively. The most common sources of information about the essential oils used by the participants are the Internet/social media (57.6%) and pharmacists (53.4%). The results of this research revealed that the awareness and use of aromatherapy practice in the community are high according to the literature. Considering the high tendency to use these products among the public, physicians, pharmacists, and nurses must provide consultancy services on the use of these products.

2023 MASCC/ESMO consensus antiemetic guidelines related to integrative and non-pharmacological therapies

PURPOSE

Review the literature to propose suggestions or recommendations for controlling nausea and vomiting through integrative and non-pharmacological treatments for the MASCC/ESMO 2023 update of its antiemetic guidelines.

METHODS

The authors identified available systematic reviews and/or meta-analyses for 12 integrative therapies, including acupressure, acupuncture, auricular therapy, electrical stimulation of point PC6, ginger use (i.e., Zingiber officinale), guided imagery, hypnosis, inhalation aromatherapy, music therapy, food-based interventions, progressive muscle relaxation, and reflexology. Reviews were assessed for quality through the AMSTAR2 tool. A consensus committee reviewed recommendations as per MASCC/ESMO established processes.

RESULTS

Thirty-nine systematic reviews and/or meta-analyses were used. There were major methodological flaws for many of the trials used as the bases for the reviews. No recommendation for ingested ginger could be made because of conflicting evidence. Recommendations were possible for acupuncture/electroacupuncture treatments, food-based interventions, and progressive muscle relaxation training alone or combined with guided imagery. No recommendations could be reached for a number of food-based approaches, inhalation aromatherapy, hypnosis in adults, music therapy, and reflexology.

CONCLUSION

While a limited number of suggestions are provided, there is a need for significantly higher quality trials in many of the therapeutic approaches assessed, before stronger recommendations and a wider range of approaches are made.

Benefit of inhalation aromatherapy as a complementary treatment for stress and anxiety in a clinical setting – A systematic review

OBJECTIVE

The purpose of this systematic review is to ascertain the impact of inhalation aromatherapy on stress and anxiety in clinical settings.

METHODS

A search strategy was developed using various databases. Randomised Controlled Trials (RCTs) as well as single and double-blind pilot clinical studies (non-RCT) using inhalation aromatherapy with an essential oil blend or a single essential oil were examined. All studies included a control intervention and use of a validated measurement tool. The time period under review was years 2000-2021. Due to the high level of heterogeneity and element of bias, a narrative synthesis was conducted.

RESULTS

The search strategy initially retrieved 628 studies and through application of the selection criteria and the removal of duplicates, 76 studies were selected for review with a total of 6539 patients. In 42% of the RCTs, physiological measures including vital signs and/or salivary cortisol were used in addition to questionnaires. Over 70% of the studies reported a positive effect on anxiety levels in the aromatherapy intervention groups compared with the control. However, in many cases this is limited by the absence of safety data, imprecise reporting of plant species and dosage of essential oil.

CONCLUSION

Inhalation aromatherapy has the potential to reduce stress and anxiety with data emerging to further support this result across a wide modality of clinical treatments. However, there is a clear need for the development of standard protocols for research in this area, generating measurable results which will create the opportunity for more rigorous evidence-based outcomes.

Effects of Aromatherapy on Cancer Patients' Sleep and Fatigue: A Systematic Review and Meta-Analysis

Objective: This study aims at investigating the effectiveness of aromatherapy in enhancing sleep quality and reducing fatigue among cancer patients based on randomized controlled trials (RCTs) with a high level of evidence. Design: A systematic review and meta-analysis. Methods: Two reviewers screened and reviewed the full texts of search results obtained from six English databases and four Korean databases, and they extracted data from the selected studies independently. Risk of bias (RoB) was assessed using the revised Cochrane RoB tool for randomized trials. The review protocol was registered with the International Prospective Register of Systematic Reviews (CRD42021277515). Results: Eleven RCTs were included in this study. Aromatherapy significantly improved sleep quality among cancer patients compared with those in the control groups (routine care, no intervention, and placebo) (standardized mean difference [SMD] = -0.92, 95% confidence interval [CI]: -1.39 to -0.46; p < 0.001, I² = 89%). However, aromatherapy did not significantly reduce fatigue among such patients (SMD = -0.40, 95% CI: -0.81 to 0.01). The results of the meta-regression confirmed that increased intervention sessions resulted in the enhanced effectiveness of aromatherapy in improving sleep quality among cancer patients (Z = -3.86, p < 0.001). Conclusion: This study showed that aromatherapy significantly improves sleep quality among cancer patients. However, aromatherapy does not significantly reduce fatigue among cancer patients. It is possible that the statistical power of the meta-analysis was weak due to the small number of included studies. Therefore, in future studies, the effects of aromatherapy on fatigue among cancer patients should be assessed further using a larger number of included studies. Further, the effects of aromatherapy should be evaluated with a focus on specific subsets of patients, such as specific cancer diagnoses and specific modalities for cancer treatment.

Quality of life in terminally ill cancer patients: what is the role of using complementary and alternative medicines?

BACKGROUND AND PURPOSE

Cancer is the world's second greatest cause of mortality and a leading cause of death in both developed and developing countries. Patients employ a number of complementary and alternative medicine (CAM) methods to deal with the problems and difficulties of cancer, which can have an impact on their quality of life (QOL). The aim of the present study was to assess the correlation between QOL and the use of different CAM methods in terminally ill cancer patients.

METHODS

This was a cross-sectional study. In southern Iran, 238 individuals with advanced cancer were studied in oncology centers and doctors' offices. During the months of January to August 2021, patients were selected using convenience sampling. A demographic information questionnaire, the EORTC core quality of life questionnaire, and the CAM questionnaire were used to collect data.

RESULTS

The results showed that terminally ill cancer patients had a good quality of life. Last year, 85.7% of participants used at least one kind of CAM. Furthermore, 45.4% of participants used only one form of CAM, 30.3% used two types of CAM, 6.7% used three types of CAM, and 3.4% used four to five types of CAM. When all CAM users were compared to non-CAM users, CAM users had significantly higher social QOL and overall quality of life. Two subscales of QOL symptoms and function were correlated with cancer history, income, and use of CAMs, and the scores of QOL symptoms and function were greater in CAM users compared to non-CAM users. Among all the study variables, only the usage of CAM was correlated to overall QOL among terminally ill cancer patients.

CONCLUSION

The current study found that using CAM could affect different aspects of QOL in terminally ill cancer patients. As a result, it is feasible that using CAM could help these people enhance their health and QOL.

[Fatigue relief by aromatherapy use in prenatal and postnatal women: a systematic review and meta-analysis]

Purpose

The purpose of this systematic review was to examine aromatherapy interventions for prenatal and postnatal women, and to determine the effectiveness of these interventions on fatigue.

Methods

Six national and international databases were reviewed to retrieve and collect studies published up to September 7, 2021, describing randomized controlled trials and controlled clinical trials of aromatherapy interventions for prenatal and postnatal women's fatigue. Of the 323 articles initially identified, 64 duplicates were excluded and 259 were screened. After further excluding 216 articles not related to PICO framework, 10 were selected for review. Two reviewers independently selected studies and conducted data extraction and quality appraisal using Cochran's Risk of Bias and Risk of Bias Assessment Tool for Non-randomized Studies.

Results

The quality of the 10 selected studies was overall satisfactory. A meta-analysis of three studies showed that aromatherapy with lavender oil? produced a 0.75-point reduction in postnatal mothers' fatigue when compared to control groups. Sleep quality was also analyzed as a secondary outcome of fatigue. A meta-analysis of four studies using lavender and/or orange peel oil found that aromatherapy produced a 0.98-point improvement in postnatal mothers' quality of sleep. Although a meta-analysis could not be conducted to synthesize the findings for fatigue in pregnant women, inhalation and massage therapy using lavender oil showed positive effects on prenatal fatigue and sleep quality.

Conclusion

Aromatherapy using lavender oil and orange peel oil is effective in improving prenatal and postnatal fatigue and sleep quality.

The Effects of Aromatherapy on Anxiety and Depression in People With Cancer: A Systematic Review and Meta-Analysis

Background

Anxiety and depression are highly prevalent in people with cancer. Medical therapies are usually prescribed to alleviate anxiety and depression, but they are associated with a variety of adverse effects. Recently, aromatherapy showed potential as a complementary medicine to improve psychological health and wellbeing. However, its effectiveness on relieving anxiety and depression has not been established.

Objective

This study explored the beneficial effects of aromatherapy on psychological symptoms such as anxiety and depression in people with cancer.

Methods

We searched international databases including PubMed, Web of Science, Cochrane Library, Embase, Medline, Ebscohost, ProQuest and Scopus from inception to 31 May 2021. The risk of bias was assessed using the Cochrane Collaboration's tool for assessing risk of bias. The systematic review and meta-analysis were performed according to the PRISMA guidelines. Quantitative analysis was performed on the studies that met our inclusion criteria, and Meta-analysis was performed on the studies with available data by RevMan software.

Results

The quality of the literatures were assessed carefully by two researchers, a total of 17 studies were included in the systematic review and 10 articles were conducted in meta-analysis. The aromatherapy was effective in relieving anxiety (SMD = -0.49, p < 0.05) in people with cancer. Subgroup analysis suggested that most effective methods were aromatic massage (SMD = -0.70, p < 0.005), aromatherapy with lavender essential oils (SMD = -1.12, p < 0.01), short-time interventions (duration < 4weeks) (SMD = -0.87, p < 0.05) and studies in Asia (SMD = -0.83, p < 0.05). Regarding depression and psychological wellbeing, there were no difference between aromatherapy and control groups.

Conclusion

In cancer patients, the aromatherapy was effective for relieving anxiety. However, there was no beneficial effect on depression and psychological wellbeing.

Systematic Review Registration

PROSPERO, identifier: CRD42021272465.

Plant Fragrances Are Like Music for Our Senses: A Scoping Review of Aromatherapy in Gynecologic Cancers and Breast Cancer Care

Introduction: Essential oil (EO) applications via inhalation and/or absorption through the skin-often referred to as aromatherapy-have particular relevance as complementary to cancer treatment and follow-up care. Aromatherapy is of particular interest for controlling symptoms and enhancing the general well-being of people with cancer. This is indicated by the increasing number of empirical studies on this topic. Although numerous reviews have summarized the extensive primary research about aromatherapy and cancer, no review on aromatherapy use targeting women with gynecologic and breast cancers currently exists. Our scoping review aims at giving an overview of the state of research about aromatherapy in this specific target group. By summarizing and describing study characteristics, based on methodological decisions and content, we intend to offer implications for future research, focused on the use of EO in women with gynecologic and breast cancers. Methods: A systematic scoping review was conducted, based on the literature, and using the extension of the PRISMA statement for scoping reviews (PRISMA-ScR). The databases PubMed and CINHAHL were searched in a multi-stage, iterative process taking the most relevant terms under consideration, given our research interest and Boolean operators. The included studies were analyzed and summarized through (1) a table matrix including categories of interest and (2) qualitative content analysis. Results: One hundred seventy studies were examined, and 10 were included in this review. They show high heterogeneity in how the term aromatherapy is defined, in content, research design, EO used, application, and outcomes. However, all 10 studies exclusively targeted women with breast cancer in different states of cancer treatment. Conclusions: Challenges of research within this field point to the heterogeneous use and classification of the term aromatherapy, the differentiation of the principle of action of EO, the lack of transparency in how EO are reported and described (e.g., botanical names, company, dosage, mixing ratios), and the need to include subjective perceptions. Ten implications for future research based on these challenges are given.

Psychological intervention to treat distress: An emerging frontier in cancer prevention and therapy

Psychological distress, such as chronic depression and anxiety, is a topical problem. In the context of cancer patients, prevalence rates of psychological distress are four-times higher than in the general population and often confer worse outcomes. In addition to evidence from epidemiological studies confirming the links between psychological distress and cancer progression, a growing body of cellular and molecular studies have also revealed the complex signaling networks which are modulated by psychological distress-derived chronic stress during cancer progression. In this review, aiming to uncover the intertwined networks of chronic stress-driven oncogenesis and progression, we summarize physiological stress response pathways, like the HPA, SNS, and MGB axes, that modulate the release of stress hormones with potential carcinogenic properties. Furthermore, we discuss in detail the mechanisms behind these chronic stimulations contributing to the initiation and progression of cancer through direct regulation of cancer hallmarks-related signaling or indirect promotion of cancer risk factors (including obesity, disordered circadian rhythms, and premature senescence), suggesting a novel research direction into cancer prevention and therapy on the basis of psychological interventions.

Effect of Aromatherapy on Dental Anxiety and Pain in Children Undergoing Local Anesthetic Administrations: A Randomized Clinical Trial

Introduction: In dentistry, local anesthetic (LA) administration in children is often associated with behavioral problems. Hence, the present study evaluated the efficacy of aromatherapy in reducing the dental anxiety and pain during LA procedure.

Methods: This clinical trial was conducted upon 150 children in the age range of 8-12 years. Subjects were randomly divided into five groups; Group 1: Lavender essential oil using nebulizer; Group 2: Lavender essential oil using inhaler; Group 3: Orange essential oil using nebulizer; Group 4: Orange essential oil using inhaler; Group 5: Control (without aromatherapy). For all the children, baseline anxiety was recorded followed by aromatherapy (except for children in the control group). Following the standard protocol, LA was administered. The procedural pain was assessed using Faces, Legs, Activity, Cry and Consolability scale (FLACC) and Faces Pain Scale-Revised (FPS-R). Finally, anxiety was again recorded. Data were analyzed using SPSS version 17.0.

Results: A significant difference in ANOVA test was observed among anxiety scores after LA in aromatherapy groups 1, 3, and 4 compared to control. When the FLACC scores were analyzed using Kruskal-Wallis, there were significantly lower values in aromatherapy groups compared to the control group. The pain scores, as reported in FPS-R, were also lower in aroma groups 1, 3, and 4.

Conclusion: Aromatherapy with lavender or sweet orange, using either nebulizer or inhaler, decreased the dental anxiety of children, whereas, only sweet orange could reduce the pain as self-reported by children.

Floralozone protects endothelial function in atherosclerosis by ameliorating NHE1

Endothelial dysfunction is the pathological basis of atherosclerosis. Incomplete understanding of endothelial dysfunction etiology has impeded drug development for this devastating disease despite the currently available therapies. Floralozone, an aroma flavor, specifically exists in rabbit ear grass. Recently, floralozone has been demonstrated to inhibit atherosclerosis, but the underlying mechanisms are undefined. The present study was undertaken to explore whether floralozone pharmacologically targets endothelial dysfunction and therefore exerts therapeutic effects on atherosclerosis. The Na+/H+ exchanger 1 (NHE1), a channel protein, plays a vital role in atherosclerosis. Whether NHE1 is involved in the therapeutic effects of floralozone on endothelial dysfunction has yet to be further answered. By performing oil red staining and hematoxylin-eosin staining, vascular functional study, and oxidative stress monitoring, we found that floralozone not only reduced the size of carotid atherosclerotic plaque but also prevented endothelial dysfunction in atherosclerotic rats. NHE1 expression was upregulated in the inner membrane of carotid arteries and H2O2-induced primary rat aortic endothelial cells. Inspiringly, floralozone prevented the upregulation of NHE1 in vivo and in vitro. Notably, the administration of NHE1 activator LiCl significantly weakened the protective effect of floralozone on endothelial dysfunction in vivo and in vitro. Our study demonstrated that floralozone exerted its protective effect on endothelial dysfunction in atherosclerosis by ameliorating NHE1. NHE1 maybe a drug target for the treatment of atherosclerosis, and floralozone may be an effective drug to meet the urgent needs of atherosclerosis patients by dampening NHE1.

Effectiveness of Inhaled Aromatherapy on Chemotherapy-Induced Nausea and Vomiting: A Systematic Review

Background: Chemotherapy-induced nausea and vomiting (CINV) are among the most common and feared side effects of cancer treatments. Their presence has a negative impact on the quality of life and morbidity associated with the disease. Despite increasingly effective antiemetic treatments, 40% of cancer patients experience CINV during the acute or delayed phase of their treatment. This distressing experience lived through by a large number of people makes it a priority in the improvement of cancer patients and a daily concern for nurses in cancer care units. In an attempt to alleviate this problem, the idea of using aromatherapy as supportive care has led the authors to research the knowledge available on this subject. Objective: The purpose of this systematic review was to examine the existing scientific evidence regarding the effectiveness of respiratory aromatherapy on CINV in addition to standard treatment compared with their recommended management in people with cancer. Design: Systematic review. Methods: This review was conducted according to the preferred reporting items for systematic reviews and meta-analyses guidelines and queried six databases (PubMed, Scopus, Cochrane Database, Embase, CINAHL, and Google Scholar). An analysis of the risk of bias using the Cochrane "Risks of Bias" tools and a qualitative synthesis of the results of the studies were carried out. Results: Eleven studies were included, nine in adults and two in children. Seven out of nine studies showed statistically significant results in adults with either direct or dry inhalation. Four out of seven alleviated both nausea and vomiting thanks to peppermint, ginger essential oil; three decreased nausea only with chamomilla, ginger or cardamom essential oil. Atmospheric diffusion and the use of inhaled aromatherapy in children did not show any benefit. Conclusions: Results appear promising for the use of direct inhaled aromatherapy in the management of CINV. However, most of the studies found the women concerned suffered from gynecologic cancers and had certain methodological limitations. Indeed, small samples and a wide variety of interventions were studied (different essential oils, number of drops of essential oils used, method of administration, etc.), making it impossible so far to generalize these results. Studies with a more robust methodology and larger samples will make it possible to confirm the potential usefulness of this complementary treatment.

Interactions of Some Chemotherapeutic Agents as Epirubicin, Gemcitabine and Paclitaxel in Multicomponent Systems Based on Orange Essential Oil

In order to anticipate the effect induced by a natural product on the chemical activity of medicines simultaneously administered, spontaneous interactions of certain cancer treatment drugs such as, epirubicin (EPR), gemcitabine (GCT), and paclitaxel (PTX) with limonene (LIM)—a natural compound extracted from orange peel and known as an anticancer agent—were investigated. To estimate the stability of the drugs over time, a current density of 50 mA cm⁻² was applied as an external stimulus between two platinum electrodes immersed in hydrochloric acid solution containing ethyl alcohol/water in the volume ratio of 2/3, in the absence and presence of orange essential oil (limonene concentration of 95%). The concentration variation of chemotherapeutic agents over time was evaluated by UV-Vis spectrophotometry. Kinetic studies have shown a delay in the decomposition reaction of epirubicin and gemcitabine and a paclitaxel activity stimulation. Thus, in the presence of limonene, the epirubicin half-life increased from 46.2 min to 63 min, and from 6.2 min to 8.6 min in gemcitabine case, while for paclitaxel a decrease of half-life from 35.9 min to 25.8 min was determined. Therefore, certain drug-limonene interactions took place, leading to the emergence of molecular micro-assemblies impacting decomposition reaction of chemotherapeutics. To predict drug–limonene interactions, the Autodock 4.2.6 system was employed. Thus, two hydrophobic interactions and five π-alkyl interactions were established between EPR-LIM, the GCT-LIM connection involves four π-alkyl interactions, and the PTX-LIM bridges take place through three hydrophobic interactions and the one π-alkyl. Finally, the decomposition reaction mechanism of drugs was proposed.

Fleeting Beauty-The World of Plant Fragrances and Their Application

This article is devoted to some aspects of the fragrant substances of plant origin applied in the food industry and perfumery as well. Since antiquity many extractive techniques have been developed to obtain essential oils. Some of them are still applied, but new ones, like microwave or ultrasound-assisted extractions, are more and more popular and they save time and cost. Independently of the procedure, the resulting essential oils are the source of many so-called isolates. These can be applied as food additives, medicines, or can be used as starting materials for organic synthesis. Some substances exist in very small amounts in plant material so the extraction is not economically profitable but, after their chemical structures were established and synthetic procedures were developed, in some cases they are prepared on an industrial scale. The substances described below are only a small fraction of the 2000–3000 fragrant molecules used to make our life more enjoyable, either in food or perfumes. Additionally, a few examples of allelopathic fragrant compounds, present in their natural state, will be denoted and some of their biocidal features will be mentioned as an arising “green” knowledge in agriculture.

Use of complementary and alternative medicines (CAM) among Malaysian cancer patients for the management of chemotherapy related side effects (CRSE)

OBJECTIVES

Chemotherapy-related side effects (CRSE) are among the most distressing events cancer patients face. Some patients seek complementary and alternative medicines (CAM), increasing the risk of undesirable drug- CAM interactions. This study aims to identify the prevalence and type of CAM used for CRSE among cancer patients and patient's disclosure of CAM use to their prescribers.

METHODS

This was a questionnaire-based, cross-sectional study. Data was collected from cancer patients attending to three departments: surgical, medical and gynaecology at a local hospital in Malaysia. Ethical approval was obtained from the Medical Research Ethics Committee, Ministry of Health, Malaysia.

RESULTS

A total of 273 patients were recruited. Prevalence of CAM used for CRSE management was 166 (60.8%). Of the CAM users, 144 (86.7%) were female, 102 (61.4%) were employed and 123 (74.1%) were married. Breast cancer patients were found to be the highest users of CAM (n=76; 45.8%). The top three CAM used by patients in managing CRSE were dietary supplements (n=166; 100%); herbal products (n=154; 92.8%) and traditional Malay therapy (n=147; 88.6%). About 83% (n=137) patients disclosed CAM use to their prescribers. Among these, 58 (42.3%) reported that their doctors encouraged the use, whereas 89 (65.0%) patients claimed their doctors disagreed the use of CAM.

CONCLUSIONS

Prescribers still have doubt in combining chemotherapy with CAM, hence patients use CAM discreetly. Increasing the awareness and understanding of CAM use are mandatory to distinguish its possible synergistic or adverse reactions with cancer patients.

Focus on Multi-targeted Role of Curcumin: a Boon in Therapeutic Paradigm

Curcumin is a polyphenolic compound that exhibited good anticancer potential against different types of cancers through its multi-targeted effect like the termination of cell proliferation, inflammation, angiogenesis, and metastasis, thereby acting as antiproliferative and cytotoxic in nature. The present review surveys the various drug combination tried with curcumin or its synthetic analogues and also the mechanism by which curcumin potentiates the effect of almost every drug. In addition, this article also focuses on aromatherapy which is gaining much popularity in cancer patients. After thoroughly studying several articles on combination therapy of curcumin through authenticated book chapters, websites, research, and review articles available at PubMed, ScienceDirect, etc., it has been observed that multi-targeted curcumin possess enormous anticancer potential and, with whatever drug it is given in combination, has always resulted in enhanced effect with reduced dose as well as side effects. It is also capable enough in overcoming the problem of chemoresistance. Besides this, aromatherapy also proved its potency in reducing cancer-related side effects. Combining all the factors together, we can conclude that combination therapy of drugs with curcumin should be explored extensively. In addition, aromatherapy can be used as an adjuvant or supplementary therapy to reduce the cancer complications in patients.

Effects of lavender and Citrus aurantium on pain of conscious intensive care unit patients: A parallel randomized placebo-controlled trial

BACKGROUND

Conscious patients admitted to intensive care units (ICUs) suffer from pain for various reasons, which can affect their recovery process.

OBJECTIVE

The present study compared the effects of aromatherapy with Citrus aurantium and lavender essential oils against placebo for reducing pain in conscious intensive care patients.

DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS

This study was a parallel randomized placebo-controlled trial. The ICUs of two educational hospitals in Kerman in Southeastern Iran were the study setting. One hundred and fifty conscious intensive care patients were randomly divided into three groups using a stratified block randomization method. Two groups received aromatherapy with essential oils: one with lavender and the other with C. aurantium; these patients received a 30-minute therapy session using their assigned essential oil on the second day of their intensive care stay. The placebo group used 5 drops of normal saline instead of essential oil during their session.

MAIN OUTCOME MEASURES

Patient's pain was assessed using a visual analog scale before the aromatherapy intervention, as well as immediately after and one and three hours after intervention.

RESULTS

The mean pain score of the lavender group was 40.01 before the aromatherapy intervention and fell to 39.40, 30.60 and 23.68 immediately after the intervention, and at hour one and three post-intervention, respectively. The mean pain score of the C. aurantium group was 45.48 before the intervention and was reduced to 32.34 at three hours after the intervention. The mean pain of the placebo group decreased from 42.80 before the intervention to 35.20 at three hours after the intervention. Pain scores of all groups decreased during the study (P < 0.001). The mean pain of the lavender group was significantly lower than that of the placebo group at three hours after the intervention.

CONCLUSION

The results of this study showed that aromatherapy with lavender essential oil reduced pain in conscious ICU patients. Our data could not justify the use of C. aurantium for reducing pain in this population.

TRIAL REGISTRATION

No. IRCT20170116031972N9 (https://en.irct.ir/trial/40827).

The Effect of Peppermint (Mentha piperita) Extract on the Severity of Nausea, Vomiting and Anorexia in Patients with Breast Cancer Undergoing Chemotherapy: A Randomized Controlled Trial

Background and Objective: Nausea, vomiting, and anorexia are the most common side effects reported in cancer patients undergoing chemotherapy. The present study aimed to determine the effect of peppermint extract on the severity of nausea, vomiting, and anorexia in patients with breast cancer undergoing chemotherapy. Methods and Materials: In this randomized controlled trial, we selected 84 patients with breast cancer undergoing chemotherapy. They were then assigned to 2 groups of experimental and control (n = 42, each) using block randomization. Patients in the experimental group received 40 drops of peppermint extract mixed in 20 cc of tap water every 8 hours, while patients in the control group received 40 drops of distilled water mixed in 20 cc of tap water every 8 hours. The severity of nausea, vomiting, and anorexia was measured and recorded before the intervention, and immediately, 24 and 48 hours after the chemotherapy using the Visual Analogue Scale. Statistical analysis of the data was conducted using SPSS software version 21. Results: The results of the present study revealed that there was a significant difference between the 2 groups at 24 and 48 hours after the chemotherapy (P < .05), so that the mean score of the severity of nausea, vomiting, and anorexia in the experimental group was lower than in the control group (P < .05). Conclusion: The use of peppermint as a method in complementary medicine may improve nausea, vomiting, and anorexia in patients with breast cancer undergoing chemotherapy. Further studies with greater sample size and longer follow-up period are needed to confirm the current findings.