Traditional and alternative treatments for depression: implications for migraine management

A history of abuse is associated with more severe migraine- and pain-related disability: Results from the American Registry for Migraine Research

BACKGROUND

Prior studies have established an association between a history of abuse and more severe migraine presentation.

OBJECTIVES

This cross-sectional, observational study of a clinic-based migraine population used validated measures to elucidate migraine-specific and migraine-related burdens among patients with a history of abuse.

METHODS

Patients with migraine (n = 866) from the American Registry for Migraine Research self-reported if they had a history of emotional, physical, and/or sexual abuse and completed questionnaires assessing migraine-related burden: Migraine Disability Assessment, Subjective Cognitive Impairment Scale for Migraine Attacks, Work Productivity and Activity Impairment, Patient-Reported Outcomes Measurement Information System Pain Interference, Patient Health Questionnaire-2, and Generalized Anxiety Disorder-7. Migraine-related burden in patients with versus without a history of abuse was compared. Subsequently, a mediation analysis evaluated the impact of depression and anxiety symptoms in the relationship between abuse history and migraine burden.

RESULTS

A history of abuse was reported by 36.5% (n = 316/866) of participants. After controlling for patient age, sex, years lived with headache, and headache frequency, a history of abuse was significantly associated with more severe migraine-related disability. The combined burden of depression and anxiety symptoms mediated the relationship.

CONCLUSION

A history of abuse is associated with greater migraine-related disability. Future studies should determine if identification and management of the psychological and physical sequelae of abuse reduce migraine burden.

What is the Status Quo of Patient-Centred Physiotherapy Management of People with Headache within a Biopsychosocial Model? - A Narrative Review

PURPOSE OF REVIEW

Patient-centred care (PCC) is deemed essential in the rehabilitation of musculoskeletal pain. Integrating such care within a biopsychosocial framework, enables to address all facets of the individual pain experience, and to manage the individual instead of the condition. This narrative review describes the status quo of PCC physiotherapy management of people with headache within a biopsychosocial model. PubMed, EMBASE, Web of Science, Scopus were searched (update 07.05.2024). The search-query comprised terminology relating to "headache", "patient-centred", "biopsychosocial", "physiotherapy". Additional eligibility criteria were reviews, trials, cohort, case report, case-control studies in English, Dutch, French.

RECENT FINDINGS

Gaps are exposed in patient-centred physiotherapy management of migraine, tension-type headache, and cervicogenic headache. While a biopsychosocial approach is advised to manage migraine and tension-type headache, its use in clinical practice is not reflected by the literature. A biopsychosocial approach is not advised in cervicogenic headache. Psychosocial-lifestyle interventions are mainly delivered by health-care providers other than physiotherapists. Additionally, psychologically-informed practice is barely introduced in physiotherapy headache management. Though, managing the social context within a biopsychosocial framework is advised, the implementation by physiotherapists is unclear. Comparable conclusions apply to PCC. PCC is recommended for the physiotherapy management of primary and secondary headache. Such recommendation remains however theoretical, not reaching clinical implementation. Yet, a shift from the traditional disease-centred model of care towards PCC is ongoing and should be continued in physiotherapy management. With this implementation, clinical and economical studies are needed to evaluate its effectiveness.

Mediators of the association between depression and migraine: a mendelian randomization study

Background

An association between depression and migraine has been reported in observational studies; however, conventional observational studies are prone to bias. This study aims to investigate the causal relationship between depression and migraine and to quantify the mediating effects of known risk factors.

Methods

We applied two-sample Mendelian randomization and utilized single nucleotide polymorphisms as genetic instruments for exposure (depression) and mediators (sleep traits). We utilized summary data on genome-wide association studies for depression, sleep-related traits mediators and migraine. For depression, genome-wide association studies (depression) were utilized as a test cohort for the primary analysis. Moreover, genome-wide association studies (major depressive disorder) were utilized to test the stability of the results for the validation cohort. IVW and MR-Egger regression were applied to test the heterogeneity, and Cochran's Q statistics were calculated to quantitatively evaluate the heterogeneity. MR-PRESSO analyses were utilized to examine and correct possible horizontal pleiotropy through removing outliers, and leave-one-out analyses were utilized to identify outlier SNPs.

Results

Genetically predicted depression was associated with migraine (OR = 1.321, 95% CI: 1.184-1.473, p < 0.001). Furthermore, risk factors insomnia was associated with migraine risk (OR = 1.766, 95% CI: 1.120-2.784, p = 0.014). The mediator insomnia accounted for 19.5% of the total effect of depression on migraine.

Conclusion

These results support a potential causal effect of depression on migraine, partly mediated by insomnia. Therefore, the enhancement of sleep quality and difficulty in falling asleep may reduce the migraine burden occasioned by depression.

Alcohol Use Disorder in Patients with Chronic Migraine: A Retrospective, Observational Study

OBJECTIVE

The relationship between migraine and alcohol consumption is unclear. We assessed the association between chronic migraine and alcohol use disorder(AUD), relative to chronic disease controls, and in conjunction with common comorbidities.

METHODS

We conducted a retrospective, observational study. The primary outcome was the odds ratio for AUD in patients with chronic migraine or with chronic migraine and additional comorbidities relative to controls.

RESULTS

A total of 3701 patients with chronic migraine, 4450 patients with low back pain, and 1780 patients with type 2 diabetes mellitus met inclusion criteria. Patients with chronic migraine had a lower risk of AUD relative to both controls of low back pain (OR 0.37; 95% CI: 0.29-0.47, p < 0.001) and type 2 diabetes mellitus (OR 0.39; 95% CI: 0.29-0.52, p < 0.001). Depression was associated with the largest OR for AUD in chronic migraine (OR 8.62; 95% CI: 4.99-14.88, p < 0.001), followed by post-traumatic stress disorder (OR 6.63; 95% CI: 4.13-10.64, p < 0.001) and anxiety (OR 3.58; 95% CI: 2.23-5.75, p < 0.001).

CONCLUSION

Patients with chronic migraine had a lower odds ratio of AUD relative to controls. But in patients with chronic migraine, those with comorbid depression, anxiety, or PTSD are at higher risk of AUD. When patients establish care, comorbid factors should be assessed and for those at higher risk, AUD should be screened for at every visit.

Understanding the gaps in headache and migraine treatment with psychological and behavioral interventions: A narrative review

OBJECTIVE

In this narrative review, we summarize relevant literature pertaining to psychosocial risk factors for headache and migraine progression, current behavioral and psychological treatments, and consider promising treatments.

BACKGROUND

Headache and migraine are common and associated with significant burden and disability. Current treatments targeting psychosocial risk factors show modest outcomes and do not directly address the impact of early life adversity, including the development of maladaptive emotional processing. An intervention that could address these factors and include components of current evidence-based interventions may lead to improved outcomes.

METHODS

We searched PubMed and Google Scholar for articles through December 2022. Search terms included headache, migraine, psychological interventions, behavioral interventions, cognitive-behavioral therapy, mindfulness, psychiatric comorbidities, adverse childhood experiences, trauma, and emotional processing.

RESULTS

Trauma and childhood adversity show a correlation with headache and migraine progression. Developmental adversity and trauma interfere with adaptive emotional processing, which may worsen headache and migraine symptoms, while adaptive ways of experiencing emotions are shown to improve symptoms. Current behavioral and psychological interventions, such as cognitive-behavioral and mindfulness therapies, are effective treatments for headache, but they produce small to medium effect sizes and do not directly address the impact of trauma and emotional conflicts-common factors that contribute to chronicity and disability, especially among certain subpopulations of headache patients such as those with migraine. Thus, there exists a gap in current treatment.

CONCLUSION

There is a gap in headache and migraine treatment for those patients who have a history of trauma, childhood adversity, and maladaptive emotional processing. We suggest that an integrated psychological treatment that includes components of current evidence-based interventions and addresses gaps by focusing on processing trauma-related emotions may improve chronic and debilitating symptoms.

Emotion dysregulation in migraine patients: can it be a hallmark the probability of the transformation from episodİc to chronic?

OBJECTIVE

The main aim of this study was to examine patients with migraine in terms of emotional dysregulation and to evaluate whether the emotion dysregulation is effective on chronicity in migraine.

MATERIALS AND METHODS

A total of 85 migraine patients and 61 healthy participants were included in this study. All participants were evaluated using Migraine Disability Scale (MIDAS), Visual Analog Scale (VAS), Depression, Anxiety, and Stress Scale (DASS-21), Difficulties in Emotion Regulation Scale (DERS), Pain Catastrophizing Scale (PCS), and the Discomfort Intolerance Scale (DIS). Then, all results were compared between the migraine patients and healthy individuals. In addition, the migraine patients were separated into three groups as patients without an aura, patients with an aura and patients with chronic migraine and then their results were compared among them. Finally, the predictive markers of chronic migraine were explored using regression analyses.

RESULTS

Among 85 migraine patients, the mean age was 31.5 (SD = 7.98); 83.5% were women. The total and subscale scores of DERS, PCS, DIS, and DASS-21 were significantly higher in patients than in healthy individuals (p < 0.01). Subscale scores of DERS, DIS, and DASS-21 in the chronic migraine patients were found to be higher than in the other two patient groups (p < 0.01). Logistic regression analysis showed that chronic migraine could be associated with 'lack of emotional clarity' (OR = 1.229; p = 0.042), 'lack of awareness' (OR = 1.187; p = 0.032), 'migraine associated disability' (OR = 1.128; p = 0.033), and 'stress' (OR = 1.292; p = 0.027).

CONCLUSION

This study results showed that chronic migraine could be associated with the emotional dysregulation. To our knowledge, this study is the preliminary study in the literature and, therefore, new studies with large samples are needed.

[Therapeutic approaches to comorbid pathology in episodic migraine and tension-type headache]

OBJECTIVE

To assess the severity of anxiety, depression, insomnia and asthenia in patients with episodic migraine and tension-type headache before and after treatment.

MATERIAL AND METHODS

104 patients aged 18 to 74 years were examined. Patients were divided into two groups: the 1st - 41 patients diagnosed with episodic migraine, the 2nd - 63 patients with episodic tension-type headache. The intensity of headache was assessed using the visual analog scale (VAS). The Hospital Anxiety and Depression Scale (HADS), the Levin questionnaire, and the Multidimensional Fatigue Inventory scale (MFI-20) were used to identify comorbid affective pathology, insomnia, and asthenia, respectively.

RESULTS

Headache severity according to VAS in the 1st group was higher (5.8±1.3 points) than in 2nd (3.8±1.2 points). Clinical anxiety was detected in 66.3% of patients without statistically significant differences between groups. The mean HADS anxiety score was 13.9±3.5 in 1st group, 12.7±3.7 - in 2nd. Clinical depression was detected in 45.2% of patients, more often in the 2nd group - 50.8% than in the 1st (36.6%). The mean depression score according to HADS was 9.0±4.4 and 9.7±3.6 in the 1st and 2nd groups respectively. The intensity of headache was statistically significantly higher in patients with clinical anxiety. Both groups were found to have insomnia and asthenia. The majority of patients - 67.3% had myofascial pain syndrome. When re-evaluating the severity of disorders after treatment (using anxiolytics, antidepressants, muscle relaxants, magnesium and neurometabolics), a significant positive trend was noted. Reducing the intensity of headaches to 3.2±0.9 points (according to VAS scale) was in patients with migraine and 1.9±0.8 points in 2nd group. Relief of anxiety and depressive disorders was observed (HADS) in 1st (4.3±3.9) and 2nd (4.5±3.3) groups, the severity of depression (HADS) - 2.1±2.2 in 1st and 2.8±3.2 in 2nd groups, as well as a decrease in asthenia and normalization of sleep. The decrease in the severity of asthenia during treatment was more significant in patients treated with Cytoflavin.

CONCLUSION

Identification and treatment of comorbid pathology leads to positive results in the treatment of primary headaches such as episodic migraine and TTH.

Regulatory Effects of Acupuncture on Emotional Disorders in Patients With Menstrual Migraine Without Aura: A Resting-State fMRI Study

Background: Menstrual migraine without aura (MMoA) refers to a specific type of migraine that is associated with the female ovarian cycle. It is particularly serious and has brought huge life pressure and mental burden to female patients. Acupuncture has been commonly used to prevent migraines and relieve concomitant emotional disorders; however, the physiological mechanism underlying this intervention remains unclear. This study aimed to use resting-state functional magnetic resonance imaging (rsfMRI) to investigate whether acupuncture can modulate brain function and if the potential influence on brain activity correlates with improving emotional symptoms in MMoA patients. Methods: Overall, 44 patients were randomly divided into a true acupuncture (TA) group and the sham acupuncture (SA) group. Patients underwent rsfMRI before and after 3-month treatment, the amplitude of low-frequency fuctuations (ALFF) and regional homogeneity (ReHo) in rsfMRI were calculated. Zung self-rating anxiety scale (SAS), Zung self-rating depression scale (SDS), frequency of migraine attacks, visual analog scale, and intensity of the migraine were used for evaluate the clinical effect. The clinical changes of variables were also used to further assess the correlation with brain activity in MMoA patients. Results: After acupuncture treatment, the emotional symptoms of both groups of patients improved, and the clinical symptoms of migraine were alleviated. The major finding of our study was that patients with MMoA showed lower ALFF value in the left anterior cingulate and the value was positively correlated with the decreases in the SAS and SDS scores. In the SA group, common brain regions responded both in ALFF and regional homogeneity values mainly in the insula, and no significant correlations were observed between brain regions and clinical variables. Conclusions: These results indicated that both two acupuncture treatments were helpful in treating migraine and could improve emotion symptoms. TA had a relatively better effect in reducing the frequency of migraine attack than SA. The two therapies have different modulation effects as TA regulates emotional disorders by modulating the frontal-limbic regions, and SA may modulate pain perception through the placebo effect on insula and by indirectly regulating emotional disorders. These findings provided evidence that acupuncture is a complementary and alternative therapy to relieve clinical symptoms in female patients with migraines and could help enhance clinical diagnosis and treatment. Clinical Trial Registration: [http://www.chictr.org.cn/index.aspx], identifier [ChiCTR-IOR-15006648. Registered 23 June 2015].

Pathophysiological Bases of Comorbidity in Migraine

Despite that it is commonly accepted that migraine is a disorder of the nervous system with a prominent genetic basis, it is comorbid with a plethora of medical conditions. Several studies have found bidirectional comorbidity between migraine and different disorders including neurological, psychiatric, cardio- and cerebrovascular, gastrointestinal, metaboloendocrine, and immunological conditions. Each of these has its own genetic load and shares some common characteristics with migraine. The bidirectional mechanisms that are likely to underlie this extensive comorbidity between migraine and other diseases are manifold. Comorbid pathologies can induce and promote thalamocortical network dysexcitability, multi-organ transient or persistent pro-inflammatory state, and disproportionate energetic needs in a variable combination, which in turn may be causative mechanisms of the activation of an ample defensive system with includes the trigeminovascular system in conjunction with the neuroendocrine hypothalamic system. This strategy is designed to maintain brain homeostasis by regulating homeostatic needs, such as normal subcortico-cortical excitability, energy balance, osmoregulation, and emotional response. In this light, the treatment of migraine should always involves a multidisciplinary approach, aimed at identifying and, if necessary, eliminating possible risk and comorbidity factors.

Intergenerational Ties in Context: Association between Caring for Grandchildren and Cognitive Function in Middle-Aged and Older Chinese

Grandchild caregiving is suggested to improve the elderly’s cognitive function, but the specific relationship remains under-investigated. Considering gender disparity, this study aimed to understand the relationship between grandchild caregiving and cognition. In total, 7236 Chinese residents (≥45 years old) were selected from the 2015 China Health and Retirement Longitudinal Study (CHARLS). The China Health and Retirement Longitudinal Study Harmonized Cognitive Assessment Protocol (CHARLS-HCAP) was used to measure cognition. Grandparenting was measured from three dimensions: caregiving frequency, intensity, and the number of grandchildren cared for. The relationship was examined by multivariate linear regression, with age as a moderator. The results showed that the majority of respondents provided care to their grandchildren, especially grandmothers. Grandchild caregiving was positively associated with cognition (β = 0.686, 95% CI = 0.334–1.038), especially in the older-aged group. Moderate, not regular grandparenting, or caring for one grandchild was more positively associated with cognitive function. However, intensive and regular grandchild care was significantly associated with cognition only in men. No moderating effects of age were found in women. The study confirmed that moderate intensity and frequency of caregiving was related to better cognitive function in middle-aged and older Chinese population, whereas cultural context and gender differences could be considered when designing targeted policies.

I stay at home with headache. A survey to investigate how the lockdown for COVID-19 impacted on headache in Italian children

Objective

The present Italian multicenter study aimed at investigating whether the course of primary headache disorders in children and adolescents was changed during the lockdown necessary to contain the COVID-19 emergency in Italy.

Methods

During the lockdown, we submitted an online questionnaire to patients already diagnosed with primary headache disorders. Questions explored the course of headache, daily habits, psychological factors related to COVID-19, general mood and school stress. Answers were transformed into data for statistical analysis. Through a bivariate analysis, the main variables affecting the subjective trend of headache, and intensity and frequency of the attacks were selected. The significant variables were then used for the multivariate analysis.

Results

We collected the answers of 707 patients. In the multivariate analysis, we found that reduction of school effort and anxiety was the main factor explaining the improvement in the subjective trend of headache and the intensity and frequency of the attacks (p < 0.001). The greater the severity of headache, the larger was the clinical improvement (p < 0.001). Disease duration was negatively associated with the improvement (p < 0.001). It is noteworthy that clinical improvement was independent of prophylaxis (p > 0.05), presence of chronic headache disorders (p > 0.05) and geographical area (p > 0.05).

Conclusions

Our study showed that lifestyle modification represents the main factor impacting the course of primary headache disorders in children and adolescents. In particular, reduction in school-related stress during the lockdown was the main factor explaining the general headache improvement in our population.

Clinical Correlates and Outcome of Major Depressive Disorder and Comorbid Migraine: A Report of the European Group for the Study of Resistant Depression

BACKGROUND

The present multicenter study aimed at defining the clinical profile of patients with major depressive disorder (MDD) and comorbid migraine.

METHODS

Demographic and clinical information for 1410 MDD patients with vs without concurrent migraine were compared by descriptive statistics, analyses of covariance, and binary logistic regression analyses.

RESULTS

The point prevalence rate for comorbid migraine was 13.5% for female and 6.2% for male patients. MDD + migraine patients were significantly younger, heavier, more likely female, of non-Caucasian origin, outpatient, and suffering from asthma. The presence of MDD + migraine resulted in a significantly higher functional disability. First-line antidepressant treatment strategy revealed a trend towards agomelatine. Second-generation antipsychotics were significantly less often administered for augmentation treatment in migraineurs. Overall, MDD + migraine patients tended to respond worse to their pharmacotherapy.

CONCLUSION

Treatment guidelines for comorbid depression and migraine are warranted to ensure optimal efficacy and avoid possible pitfalls in psychopharmacotherapy, including serotonin syndrome.

Variety, frequency, and type of Internet use and its association with risk of depression in middle- and older-aged Chinese: A cross-sectional study

BACKGROUND

Internet use is beneficial to mental health has been acknowledged, but its specific patterns await further investigation in China's context of urban-rural disparity. Therefore, we aimed to understand the patterns of Internet use and measure their associations with risk of depression in China from three dimensions: variety, frequency and type.

METHODS

We selected 18,492 urban and rural Chinses respondents aged 45 years and older from China Health and Retirement Longitudinal Study (CHARLS) 2015 dataset. Risk of depression was measured by 10-item Centre for Epidemiologic Studies (CES-D 10). Internet use was measured from three dimensions: variety, frequency and type, whereas its relationship with risk of depression was examined by multivariate logistic regression model.

RESULTS

In the whole sample, 67.2% of respondents had no risk of depression, and approximately 7% used Internet, which was inversely associated with risk of depression (AOR=0.617, 95% CI=0.444, 0.858). Rural respondents had higher risk of depression (37.1% VS 26.2%) and lower prevalence of Internet use (2.6% VS 13%). Among rural respondents, using Internet occasionally (AOR=0.338; 95% CI=0.130, 0.881), using one type of device (AOR=0.293; 95% CI=0.113, 0.760), especially mobile phone (AOR=0.427; 95% CI=0.187, 0.978) were associated with lower odds of depression. No significant associations were observed in urban respondents.

LIMITATIONS

The causal relationship between variables awaits further investigation with a longitudinal design.

CONCLUSION

Internet use was negatively associated with risks of depression, especially in rural but not in urban participants. Rural-urban disparities should be considered when designing strategies to encourage moderate Internet use.

Diagnosis and treatment of migraine in the patient with depression

BACKGROUND AND PURPOSE

Migraine headache is an enormous health care burden resulting in billions of dollars in workforce revenue lost and millions of lost workdays per year. Migraine headaches and depression are common comorbidities and require expertise in treatment and prevention.

METHODS

The aim of this article is to update the nurse practitioner (NP) on best clinical practices for managing the patient with migraine and previously diagnosed depression. This will include an overview of the pathophysiology of migraine, as well as criteria for diagnosis, treatment, prevention, and patient teaching.

CONCLUSIONS

Migraine and depression are commonly linked and require expertise in treatment to achieve the best patient outcomes.

IMPLICATIONS FOR PRACTICE

Patients with migraine are more likely to have depression than the general population. Both conditions require optimal treatment and patient education to reduce overall disease burden. A better understanding of the relationship between depression and migraine will enable the NP to better manage patients with migraine and comorbid depression.

Migraine and greater pain symptoms at 10-year follow-up among patients with major depressive disorder

Background

No study has investigated the associations of migraine with pain symptoms over a ten-year period among outpatients with major depressive disorder (MDD). This study aimed to investigate this issue.

Methods

At baseline, the study enrolled 290 outpatients with MDD and followed-up the patients at six-month, two-year, and ten-year time points. MDD and anxiety comorbidities were diagnosed using the Structured Clinical Interview for DSM-IV-text revision. Migraine was diagnosed based on the International Classification of Headache Disorders. The bodily pain subscale of the Short Form 36 (SF-BP) and the pain subscale (PS) of the Depression and Somatic Symptoms scale were also used. Generalized Estimating Equation models were employed to investigate the longitudinal impacts of migraine on pain symptoms.

Results

MDD patients with migraine had lower SF-BP and higher PS scores than those without. Depression, anxiety, and headache indices were significantly correlated with SF-BP and PS scores. The higher the frequency of migraine, the more often patients suffered from pain symptoms. Patients with migraine at all investigated time points suffered from pain symptoms most of the time (ranging from 60.0% to 73.7%) over the 10 years. After controlling for depression and anxiety, migraine was independently associated with a decreased SF-BP score (by 8.93 points) and an increased PS score (by 1.33 points).

Conclusion

Migraine was an important comorbidity associated with greater severities of pain symptoms during long-term follow-up. Migraine treatment should be integrated into the treatment of depression to improve pain symptoms and quality of life in the pain dimension.

Exploration of intrinsic brain activity in migraine with and without comorbid depression

BACKGROUND

Major depressive disorder is a common comorbidity in migraineurs. Depression may affect the progression and prognosis of migraine. Few studies have examined the brain function in migraineurs that may cause this comorbidity. Here, we aimed to explore depression-related abnormalities in the intrinsic brain activity of interictal migraineurs with comorbid depression using resting-state functional magnetic resonance imaging.

RESULTS

Significant main effects of migraine and depression provided evidence that migraine and depression jointly affected the left medial prefrontal cortex, which was thought to be the neural basis of self-referential mental activity in previous studies. Abnormalities in this region may contribute to determining the common symptoms of migraine and depression and even result in comorbidity. Additionally, migraineurs with comorbid depression had different developmental trajectories in the right thalamus and fusiform, which were associated with recognizing, transmitting, controlling and remembering pain and emotion.

CONCLUSIONS

Based on our findings, the abnormal mPFC which may contribute to determining the common symptoms in migraine and depression and may be a therapeutic target for migraineurs comorbid depression. The different developmental trajectory in thalamus and fusiform indicates that the comorbidity may arise through a specific mechanism rather than simple superposition of migraine and depression.

Depression comorbidity in migraine

Migraine and Major Depressive Disorder (MDD) are highly prevalent conditions that can lead to significant disability. These conditions are often comorbid, and several studies shed light on the underlying reasons for this comorbidity. The purpose of this review article is to have a closer look at the epidemiology, pathophysiology, genetic and environmental factors, temporal association, treatment options, and prognosis of patients suffering from both conditions, to allow a better understanding of what factors underlie this comorbidity. Studies show that patients with migraine are 2-4-times more likely to develop lifetime MDD, predominantly due to similar underlying pathophysiologic and genetic mechanisms. There appears to be a bidirectional temporal association between the two conditions, although longitudinal studies are needed to determine this more definitively. Quality-of-life and health-related outcomes are worse for patients that suffer from both conditions. Thus, a careful assessment of the patient with access to appropriate resources and follow-up is paramount. Future studies in genetics and brain imaging will be helpful in further elucidating the underlying mechanisms in these comorbid conditions, which will hopefully lead to better treatment options.

[Migraine and depression: efficacy and safety of antidepressant therapy]

AIM

To study an influence of depression on the course of migraine and the efficacy of antidepressants in treatment of depression associated with migraine.

MATERIAL AND METHODS

The study consisted of 544 patients with migraine including 240 patients with depression. Patients were examined at the first visit, after 6 months (visit 2) and one year (visit 3). Then patients were interviewed by phone once a year (visits 5, 6, 7, 8), they were asked about a number of days with migraine. Patients with depression were treated with antidepressants. Results and сonclusion. Six types of migraine course were determined: persistent episodic migraine, migraine remission, episodic migraine chronification, chronic migraine regress to episodic migraine, persistent chronic migraine, remitted or wavelike chronic migraine. The presence of depression and skin allodynia predicted the development of persistent and remitted chronic migraine. The effect of antidepressants of different groups was noted in treatment of patients with the combination of chronic migraine and depression. The most pronounced effect was observed with tricyclic antidepressants, the smallest one when selective serotonin reuptake inhibitors were used.

Migraine and its psychiatric comorbidities

Migraine is a highly prevalent and disabling neurological disorder associated with a wide range of psychiatric comorbidities. In this manuscript, we provide an overview of the link between migraine and several comorbid psychiatric disorders, including depression, anxiety and post-traumatic stress disorder. We present data on psychiatric risk factors for migraine chronification. We discuss the evidence, theories and methods, such as brain functional imaging, to explain the pathophysiological links between migraine and psychiatric disorders. Finally, we provide an overview of the treatment considerations for treating migraine with psychiatric comorbidities. In conclusion, a review of the literature demonstrates the wide variety of psychiatric comorbidities with migraine. However, more research is needed to elucidate the neurocircuitry underlying the association between migraine and the comorbid psychiatric conditions and to determine the most effective treatment for migraine with psychiatric comorbidity.

Roads Less Traveled: Sexual Dimorphism and Mast Cell Contributions to Migraine Pathology

Migraine is a common, little understood, and debilitating disease. It is much more prominent in women than in men (~2/3 are women) but the reasons for female preponderance are not clear. Migraineurs frequently experience severe comorbidities, such as allergies, depression, irritable bowel syndrome, and others; many of the comorbidities are more common in females. Current treatments for migraine are not gender specific, and rarely are migraine and its comorbidities considered and treated by the same specialist. Thus, migraine treatments represent a huge unmet medical need, which will only be addressed with greater understanding of its underlying pathophysiology. We discuss the current knowledge about sex differences in migraine and its comorbidities, and focus on the potential role of mast cells (MCs) in both. Sex-based differences in pain recognition and drug responses, fluid balance, and the blood–brain barrier are recognized but their impact on migraine is not well studied. Furthermore, MCs are well recognized for their prominent role in allergies but much less is known about their contributions to pain pathways in general and migraine specifically. MC-neuron bidirectional communication uniquely positions these cells as potential initiators and/or perpetuators of pain. MCs can secrete nociceptor sensitizing and activating agents, such as serotonin, prostaglandins, histamine, and proteolytic enzymes that can also activate the pain-mediating transient receptor potential vanilloid channels. MCs express receptors for both estrogen and progesterone that induce degranulation upon binding. Furthermore, environmental estrogens, such as Bisphenol A, activate MCs in preclinical models but their impact on pain pathways or migraine is understudied. We hope that this discussion will encourage scientists and physicians alike to bridge the knowledge gaps linking sex, MCs, and migraine to develop better, more comprehensive treatments for migraine patients.