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  Table of Contents  
ORIGINAL ARTICLE
Year : 2020  |  Volume : 11  |  Issue : 4  |  Page : 544-550  

A prospective study examining trigger factors and hormonal abnormalities in adult female acne


1 Department of Dermatology, Venereology and Leprosy, Dr Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
2 Department of Biochemistry, Dr Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
3 Department ofRadiodiagnosis, Dr Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India

Date of Web Publication13-Jul-2020

Correspondence Address:
Kabir Sardana
Dr Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi - 110 001
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/idoj.IDOJ_500_19

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   Abstract 


Background: Numerous triggers have been implicated in adult female acne including endogenous (hormonal dysfunction and genetic predisposition) and exogenous causes (drugs, cosmetics, sunscreens, stress, and smoking). Aims: To evaluate the role of various trigger factors in adult female acne and to analyze the androgenic hormone pattern including anti-Mullerian hormone (AMH) in these patients. Materials and Methods: Patients having acne of age ≥25 years were analyzed using a pre devised proforma to elicit trigger factors while the severity was graded using the Global Acne Grading System (GAGS). A detailed hormonal assessment was undertaken that assessed total testosterone (TT), sex hormone-binding globulin (SHBG), free androgen index (FAI), AMH, 17-hydroxyprogesterone (17-OHP), dehydroepiandrosterone sulfate (DHEAS), follicle-stimulating hormone (FSH), luteinizing hormone (LH), thyroid-stimulating hormone (TSH), and prolactin. Results: Out of the 165 cases seen and sub-analyzed for triggers, premenstrual flare, diet, cosmetics, and stress were the most commonly implicated causes. Among cosmetics, fairness creams and foundations were implicated.The hormonal analysis revealed deranged values of all hormones with the most common being 17-OHP and AMH. Almost 42.8% patients with DHEAS derangement and 58.75% females with raised 17-OHP suffered from moderate to severe stress. Limitations: A prospective cohort correlation study of the implicated triggers is needed to confirm the association with adult female acne. Conclusions: Adult female acne may be triggered by diet, stress, and cosmetics and there is a distinct hormonal milieu that accounts for hyperandrogenemia. We noted high levels of adrenal androgens which have been known to be associated with stress and sleep deprivation. Our study shows the value of counseling adult female acne patients about various acne triggers.

Keywords: Adult female acne, hyperandrogenemia, trigger factors, stress, diet, cosmetics


How to cite this article:
Bansal P, Sardana K, Vats G, Sharma L, Garga UC, Khurana A. A prospective study examining trigger factors and hormonal abnormalities in adult female acne. Indian Dermatol Online J 2020;11:544-50

How to cite this URL:
Bansal P, Sardana K, Vats G, Sharma L, Garga UC, Khurana A. A prospective study examining trigger factors and hormonal abnormalities in adult female acne. Indian Dermatol Online J [serial online] 2020 [cited 2020 Aug 8];11:544-50. Available from: http://www.idoj.in/text.asp?2020/11/4/544/289630




   Introduction Top


Adult acne, predominantly seen in females, is defined as the presence of acne beyond the age of 25 years.[1] It has two subtypes: “persistent acne” and “late-onset acne.” The “persistent acne” which presents in adolescence and continues into adulthood is the most frequent subtype.[2],[3],[4] The “late-onset acne” appears for the first time after 25 years of age.[5],[6]

The most common endogenous causes of adult acne are hormonal dysfunction [1] and a genetic predisposition. The various external triggers implicated include drugs, cosmetics, exposure to comedogenic substances, stress, and smoking.[7],[8] Premenstrual flare is also seen in many acne patients.[2]

As androgen excess consequent to ovarian or adrenal pathology is one of the most common endocrine dysfunction in adult female acne,[9] a hormonal evaluation is indispensable to specify the androgen source.[10]

The aims of our study were to evaluate various trigger factors implicated in adult female acne in Indian patients and to analyze the androgenic hormone pattern in them. As polycystic ovary syndrome (PCOS) is a common cause of androgenic excess in acne we also studied the levels of anti-Mullerian hormone (AMH) which has been known to correlate well with ovarian reserve, polycystic ovarian morphology (PCOM), and PCOS.[11],[12]


   Materials and Methods Top


This prospective study examined nonpregnant females with acne aged ≥25 years, who were not on hormonal therapy for last 3 months attending the OPD in a tertiary referral hospital in north India from November 2017 to March 2019. The study was conducted after due ethics approval by the institutional ethics committee (IEC). A detailed history and examination were undertaken according to a preapproved proforma. The Global Acne Grading System (GAGS) was used to assess the acne. The patients were subdivided into persistent and late-onset acne.

The patient reported trigger factors associated with acne flare were labelled as “subjective triggers'' while objective evaluation of triggers was arrived by specific questions pertaining to diet, cosmetics, stress, and sleep pattern [Table 1]. Dietary history was assessed by the analysis of the glycemic index of foods [13] and a note was made of the intake of milk and dairy products, processed foods, chocolates, and “oily” foods. Ingredients of cosmetics were assessed for comedogenicity and includeddecyl oleate, isopropyl palmitate, isopropyl myristate, isopropyl isostearate, myristyl myristate, butyl stearate, isocetyl stearate, and cocoa butter.[14] Sunscreen ingredients were assessed for implicated comedogenic ingredients such as homosalate, red petrolatum, zinc oxide, N, N-dimethylamino benzoate, dioxybenzone, oxybenzone, and dihydroxyacetone.[15] Stress during the past 1 month was assessed using perceived stress scale (PSS). The adequacy of sleep cycle was evaluated using Pittsburgh sleep quality index (PSQI). An acne flare was defined as a history of increase in the number, type, and extent of acne lesions as reported by the patients. We also elicited history and cross-verified relevant drug intake including androgens, anticonvulsants (carbamazepine, phenytoin, gabapentin), antidepressants (lithium), antipsychotics, antitubercular drugs (isoniazid, pyrazinamide), antivirals (ganciclovir), and use of over-the-counter medications such as vitamin B12 and various vitamin supplements commonly implicated to cause or exacerbate acne.
Table 1: Proforma

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On days 3–5 of the menstrual cycle, a morning sample after overnight fasting was taken to evaluate hormones including total testosterone (TT), sex hormone-binding globulin (SHBG), free androgen index (FAI), AMH, 17-hydroxyprogesterone (17-OHP), dehydroepiandrosterone sulfate (DHEAS), follicle-stimulating hormone (FSH), luteinizing hormone (LH), thyroid-stimulating hormone (TSH), and prolactin, using the random access fully automated immunoassay system (DXI-600, Beckman Coulter, USA). While DHEAS and 17-OHP were representative of adrenal androgens, AMH was used to evaluate PCOS. The free androgen index (FAI) was calculated as a surrogate marker of hyperandrogenemia. Free testosterone was not tested as it requires highly sensitive tools and is not standardized across laboratories or studies.

Additionally, a transabdominal ultrasound was performed on the same dayof blood sampling using a curvilinear transabdominal probe (3 MHz, Medison—SonoAceX1) in the transverse and sagittal plane. PCOS was diagnosed on the basis of Rotterdam's criteria and biochemical hyperandrogenism was defined by serum TT levels more than or equal to 1.89 nmol/Lusing the Rotterdam's criteria.

Statistical methods

The data were entered in MS EXCEL spreadsheet and analysis was done using Statistical Package for Social Sciences (SPSS) version 21.0.

Categorical variables were presented in number and percentage (%) and continuous variables were presented as mean ± SD and median. The normality of data was tested by the Kolmogorov-Smirnov test. If the normality was rejected then the nonparametric test was used.

Quantitative variables were compared using the independent t-test/Mann-Whitney test (when the data sets were not normally distributed) between the two groups. Qualitative variables were correlated using Chi-Square test/Fisher's Exact test. A P value of <0.05 was considered statistically significant.


   Results Top


Of the 165 adult female acne patients seen, 56% of females had late-onset acne and 43% presented as persistent acne. As per the inclusion criterion for hormonal testing, only 120 were further studied. Most of the patients with acne (70%) were in the age range of 25–30 years while only 5.83% were aged above 40 years. Working women, students, and housewives constituted 36.67%, 15.83%, and 47.50%, respectively in the study. PCOS was diagnosed as per Rotterdam's criteria in 31 (25.83%) patients. The most common lesion at presentation was papule (66.67%) followed by mixed lesions including pustules, nodules, and comedones. The patient acne severity was graded as mild (79.17%) to moderate (20.83%) with a mean GAGS of 15.57 ± 4.04. The subjective evaluation revealed that 30% of females had a distinct premenstrual flare [Table 2]. The objective assessment implicated the role of diet in 23.33% of patients with the common foods being “oily”and dairy products [Figure 1]. Among cosmetics; fairness creams, foundations, and facials were implicated. The mean duration was found to be the highest of “fairness creams” while the maximum frequency per month was highest for sunscreens [Table 3]. Females with persistent acne had a significantly higher frequency of foundation usage with a mean of 14.88 days per month when compared to only 5.08 days per month in the late-onset acne patients [Figure 2]. On the basis of PSS, moderate to severe stress was reported by 65.83% females while inadequate sleep was reported by 35% of patients. The majority (97.61%) of our patients with inadequate sleep suffered from stress as well. 77.27% of working women and 52.63% of students in the study suffered from moderate to severe stress in addition to acne.
Table 2: Frequency table of subjective acne trigger factors

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Figure 1: An analysis of trigger factors in adult female acne based on objective evaluation (X-axis—trigger factors, Y-axis—the percentage of affected women)

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Table 3: Cosmetics usage in total acne population

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Figure 2: Persistent acne was associated with increased frequency of foundation usage

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The hormonal analysis revealed that the mean values of all the hormones assessed in the study cohort were within the normal range as depicted in [Table 4]. Individual analysis of hormones revealed that elevated 17-OHPand AMH were noted in 66.67% and 60.83% patients, respectively [Figure 3]. Out of the 80 females with deranged 17 OHP,12 (10%) had a value >2 ng/mL and only 2 (1.66%) had a value of more than 4 ng/mL. DHEAS was raised in 17.5% patients. Interestingly, 42.8% patients with DHEAS derangement and 58.75% females with raised 17-OHP suffered from moderate to severe stress as well. Apart from this, only 26 (21.67%) and 14 (11.67%) patients had deranged value of serum prolactin and TSH.
Table 4: Hormonal analysis of total acne population

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Figure 3: A depiction of the percentage of patients with deranged hormones (X-axis—hormonal parameters, Y-axis—the percentage of women with hormonal derangement). 17-OHP: 17-hydroxyprogesterone; DHEAS: dehydroepiandrosterone sulfate; SHBG: sex hormone-binding globulin; FAI: free androgen index; LH: luteinizing hormone; FSH: follicle-stimulating hormone; AMH: anti-Mullerian hormone

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   Discussion Top


The mean age of adult females with acne in our study was 29.73 ± 5.04 years which is akin to a previous study where the mean age of adult acne females was found to be 28.8 ± 3.64 years.[16] Most of our patients had mild to moderate acne which is consistent with previous studies.[1],[17],[18] Family history was noted in 10% of our study sample.

The premenstrual flare was the most common self-reported trigger factor (30%) which is less than the published literature wherein it ranges from 40%[19] to 84.8%.[1] This factor is significant as it is the most convincing proof of elevated androgens and is a clinical manifestation of a relatively lower mid-cycle peak of estrogen in women with acne. We found that 23.33% of adult females had a history of regular intake of oily foods. Landro et al. reported that 50% of adult acne patients consumed milk and dairy products regularly and further highlighted that the rate of affected women consuming vegetables, fruits, and fish was significantly less than the normal population.[20] George et al. also observed that oily foods and dairy products precipitated acne in 37.3% and 1.8% adult acne patients, respectively.[21] Diet has been propounded to cause acne via deranged nutrient signaling-induced hyperkeratosis and hyperseborrhea.[22],[23] This with over-activation of mTORC1 by a high glycemic dietcan cause acne in conjunction with increased levels of androgens.[22]

Various cosmetics implicated in acne included sunscreens, fairness cream, foundation, and facials. It has been historically believed that low-grade persistent acne in females could occur majorly due to cosmetics use which lead to the use of the term “acne cosmetica” coined by Kligman.[24] A hospital-based study noted that 40% of adult acne patients experienced an aggravation of lesions after cosmetic use [21] which was supported by another study, which also concurred that a statistically significant difference in acne severity between “make-up” users and nonusers was seen.[18] Significantly, females with persistent acne were found to have a higher use of foundation. This is an important and overlooked cause and may play a role in persistent acne. This is in consonance with the Chlebus study where a significant correlation was seen between acne and the use of “full cover foundation.”[8] Similarly, the Dumont-Wallon study also found cosmetic use as an important factor in adult acne pathogenesis.[6] While a variety of cosmetic ingredients are known to be comedogenic and it is believed that many cosmetic companies now replace these ingredients with non-comedogenic alternatives,[25] this might not be the case in our country. Though sunscreens were a minor cause, they have been well-established as a cause of “acne cosmetica”and should be considered in our population. Here it must be noted that it is the vehicle that is the culprit and this is compounded by the enhanced comedogenicity with concomitant UV radiation [15],[26] which is one of the possible causes of the reported summer flare in acne.[27]

Chronic stress activating the hypothalamic-pituitary-adrenal (HPA) axis has been purported to exacerbate acne mediated by the enhanced secretion of adrenal androgens and neuropeptides such as corticotrophin-releasing hormone (CRH). Recent studies have also demonstrated that CRH promotes lipid synthesis in the sebaceous gland and that the CRH system is abundantly expressed in acne-involved skin.[28] In our analysis, stress was an important trigger factor which is in consonance with previous studies where almost 50% of cases noted this association.[5],[8] Goulden et al. also noted that 71% of females reported acne flare during stressful times but only 12% of females accepted to be under chronic stress.[1] An elegant study has demonstrated that patients with acne experience worsening of the disease during examinations and changes in acne severity correlate highly with increasing stress.[29] More than half of the students in our study also complained of being under moderate to severe stress. One significant aspect was the inadequate sleep cycle which can be closely related to stress as 97.61% patients with lack of adequate sleep suffered from stress as well. A well-established relation between stress and lack of sleep has been established [29] and it has been surmised that “work” stress of the modern “work environment''may impact on acne in the adult female patient.[30] This was also evident in our study where a large proportion of working women with acne reported being under stress. Here it must be noted that while there is a link between stress and acne possibly due to the changing lifestyle of the modern women,[31],[32],[33] ideally a prospective study with a correlation with stressful events and acne flares is needed to arrive at a firm conclusion of its relationship with acne.

Biochemical hyperandrogenemia can be studied by analyzing the deranged values of TT, FAI, 17-OHP, and DHEAS as these can assess both the ovarian and adrenal sources of androgens. The elevated values of DHEAS (17.5%) and FAI (15.83%) are consistent with a previous study by Lucky et al.[34] who observed that DHEAS was raised in 18.5% acne patients and SHBG was low in 33.8% in acne females, the latter accounting for the increased FAI. Darley et al. also noted a higher prevalence of raised testosterone and low SHBG in 46% of adult females with persistent or late-onset acne.[35] Cibula et al. also found that testosterone and DHEAS were raised in 24% and 30% patients, respectively.[36]

The high level of 17-OHP in our work was above the reference range in 66.67% adult females though none of them had a value higher than 8 ng/mL which is considered diagnostic of non classic congenital adrenal hyperplasia (NCCAH). A study by Aziz et al. concurred that a value of more than 4 ng/mL has a sensitivity of 90% in diagnosing NCCAH.[37] In our work, only 10% and 1.66% patients had a value >2 ng/mL and >4 ng/mL, respectively. The high value of 17-OHP in our work is comparable to other studies that have analyzed this hormone in acne [38],[39] which concurred that 17 OHP can be elevated in 31% patients of acne alone and in 40% patients of acne with hirsutism.[34]

Our hormonal milieu is significant for two reasons. Apart from the accepted role of androgens in stimulating the sebaceous gland, our work supports the propositus that chronic stress leads to enhanced secretion of adrenal androgens, resulting in sebaceous hyperplasia and the subsequent induction of acne.[40] This is more so as the adrenal gland is intricately linked to stress,[41] which has been, in turn, found to be a trigger for acne [42],[43] and this possibly accounts for the raised adrenal hormones. Significantly, 42.8% of patients with elevated DHEAS and 58.75% with raised 17-OHP had a documented history of moderate to severe stress.

AMH has been extensively studied to diagnose PCOS and PCOM and has been found to correlate with various aspects of PCOS,[44],[45],[46],[47],[48],[49] but has been scarcely studied in adult acne. We found AMH levels to be significantly higher and this is accounted for by the patients with PCOSor PCOM which is a common underlying cause of adult female acne.

Thus, our work shows that adult female acne may be triggered by diet, stress, and cosmetics, and there is a distinct hormonal milieu that accounts for hyperandrogenemia and the increased adrenal androgen levels. We found that lack of sleep and stress were both seen in a large proportion of patients which with a high level of adrenal hormones, suggestive of a tenuous link between stress and acne. We have also reconfirmed the raised levels of AMH in adult female acne and this hormone should be studied further in adult acne females.

Further analysis of the other trigger factors and the interrelationship between the various hormonal parameters, PCOS, PCOM, and AMH in adult female acne is needed and is being analyzed in our centre to shed light on the role of various androgens in acne.

The clinical applicability of our study is that it can help counsel adult female acne patients about the possible trigger factors and their link with adult acne. Also, we reiterate the role of androgens and as a corollary the need for appropriate and timely anti-androgen therapy in adult female acne.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
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