This study investigated the value of headache presence during elecromyographic (EMG) feedback relaxation training and the contribution made by home relaxation practice in the elimination of tension headache. Eighteen participants, mainly coeds in their twenties, recorded headache and medication data for two baseline weeks, and were assigned to one of three training groups. Group A received EMG feedback training with headache presence during the session and home relaxation practice. Group B received EMG feedback without headache Presence and home practice. Group C received only home relaxation practice. Statistically significant treatment differences were not found, but declining trends of headache activity and medication use tend to support the efficacy of EMG training with headache presence.

Typical migraine, comprised of migraine with aura (MA) and migraine without aura (MO), is a chronic, painful and debilitating neurovascular disease which is generally characterised by recurrent attacks of severe headache usually accompanied by nausea, vomiting, photo and phonophobia. Migraine has been shown to affect a large proportion of Caucasian populations with a recent comprehensive study indicating that around 25% of women and 8% of men suffer from the disease. Strong familial aggregation of typical migraine and an increased concordance for the disease in MZ twins over DZ twins, suggests that it has a significant genetic component. Heritability estimates are calculated to be between 40% and 60%, indicating that disease variation, in part, is explained by environmental determinants. The mode of transmission of typical migraine is not clear but is most likely multifactorial. Although the MA and MO subtypes exhibit some clinical heterogeneity, segregation analysis has suggested that there may be a common genetic aetiology for MA and MO, and a major gene contributing to typical migraine pathogenesis. This idea is substantiated by the fact that both subtypes of migraine can occur within the same family and even within the same individual, with up to 33% of sufferers experiencing both types of the disease. In addition, migraine prophylactics have been shown to result in similar effects in patients treated for both types of migraine. However, whether the two subtypes are truly separate entities or not remains unclear. At present, the type and number of genes involved in typical migraine is not known. Despite this, several studies into Familial Hemiplegic Migraine (FHM), a very severe subtype of MA, have led to the discovery that mutations in a brain specific calcium channel subunit gene (CACNA1A) located on chromosome 19, cause FHM in about 50% of affected families. FHM is a rare disease and is distinguished from typical migraine by its association with hemiparesis and clear autosomal dominant mode of inheritance. However, certain clinical features are common to both FHM and typical migraine including similarities in headache characteristics and triggers. Hence, FHM genetic studies provide a valuable model for investigating the genes involved in the more prevalent types of migraine with and without aura. For this reason the Genomics Research Centre has been conducting linkage studies utilising large Australian migraine pedigrees with a focus on the known FHM (CACNA1A) gene region on chromosome 19p13. Our results to date have indicated suggestive linkage to the FHM region on 19p13 in a large multigenerational pedigree (MF1) affected with typical migraine, with a maximum parametric LOD score of 1.92 (P = 0.001) obtained for a triplet repeat polymorphism situated in exon 47 of the CACNA1A gene. Expansion of this repeat was not observed, but is possible that mutations elsewhere in the CACNA1A gene may be responsible for migraine in this pedigree. To investigate this possibility, the current research involved sequencing two patients carrying the critical susceptibility haplotype surrounding the CACNA1A gene. The results of this mutation screen revealed no disease causing mutations or polymorphisms in any of the 47 exons screened. To determine whether the CACNA1A genomic region was implicated in typical migraine susceptibility in the general Caucasian population, 82 independent pedigrees and a large case-control group were also analysed using highly polymorphic microsatellite markers. There was no linkage or association detected in these groups and thus, it was concluded that if CACNA1A plays a role in typical migraine it does not confer a major effect on the disease. However, subsequent case-control studies of SNPs in the INSR gene, which is located ~15cM telomeric from CACNA1A, provided evidence of association to typical migraine. Thus, the INSR gene may now emerge as the new migraine susceptibility gene in this genomic region on chromosome 19. Family linkage studies conducted by Gardner et al have implicated an additional FHM susceptibility region on chromsome 1q31. Furthermore, independent research carried out by Ducros et al. has indicated a second FHM locus at 1q21-23, which is ~ 30cM centromeric to the region reported by Gardner et al. At this stage it is not clear whether there is a single locus, or two distinct loci, on the chromosome 1q region. This research also involved a family-based linkage and association approach to investigating the FHM susceptibility region on chromosome 1q31 for involvement in typical migraine susceptibility in affected Australian pedigrees. Initial multipoint ALLEGRO analysis provided strong evidence for linkage of Chr1q31 markers to typical migraine in a large multigenerational pedigree. The 1-LOD* unit support interval for suggestive linkage spanned ~18cM with a maximum allele sharing LOD* score of 3.36 obtained for marker D1S2782, P = 0.00004. Subsequent analysis of an independent sample of 82 affected pedigrees added support to the initial findings with a maximum LOD* of 1.24 (P = 0.008). Utilising the independent sample of 82 pedigrees we also performed a family-based association test. Results of this analysis indicated distortion of allele transmission at marker D1S249 (global c2(5) of 15.00, P = 0.010) in these pedigrees. These positive linkage and association results will need further confirmation by independent researchers, but overall they provide good evidence for the existence of a typical migraine locus near these markers on Chr1q31, and reinforce the idea that an FHM gene in this genomic region may also contribute to susceptibility to the more common forms of migraine. The serotonergic system has long been implicated in the pathophysiology of migraine. Researchers have therefore focused on the serotonin receptors and the genes that code for them when investigating this disease. Although serotonin receptor agonists have proven to be effective in the treatment of migraine, there has been little evidence of a serotonin receptor gene being associated with the disorder. However, in 1998, Ogilvie et al reported that a VNTR in the serotonin transporter gene (SERT) showed altered allelic distributions in a Danish migraine population. In addition to serotonin, there has been renewed interest in the involvement of the dopaminergic pathways in migraine. This interest has gained impetus since the study of Peroutka et al who reported an allelic association between the dopamine receptor gene DRD2 and migraine with aura. Another dopamine related gene, the dopamine beta-hydroxylase gene (DBH), has been localised to Chr 9q34 and codes for the enzyme that catalyses the conversion of dopamine to norepinephrine. It therefore plays an important role in dopaminergic and noradrenergic neurotransmission. Serum levels of DbH enzyme have been reported to be elevated in migrainous patients during the headache phase of an attack. Also, significantly increased DbH enzyme activity has been observed in migraine patients during the headache-free interval. Thus, the DBH gene is another good candidate for involvement in migraine pathophysiology and, to our knowledge, has not been previously implicated in this disease. Candidate gene studies may be useful strategies for identifying genes involved in complex diseases such as migraine, especially if the gene being examined contributes only a minor effect to the overall phenotype. This research also involved a linkage and association approach to investigating neurotransmitter related migraine candidate genes. Specifically, polymorphisms within the serotonin transporter gene (SERT), the dopamine receptor gene (DRD2) and the dopamine beta-hydroxylase (DBH) gene were tested in unrelated Caucasian migraineurs and non-migraine control individuals. In addition, an independent sample of 82 families affected with migraine were examined. Unrelated case-control association analysis of a DBH intragenic dinucleotide polymorphism indicated altered allelic distribution between migraine and control groups (c2 = 16.53, P = 0.019). Furthermore, the transmission/disequilibrium test (TDT) which was implemented on the family data also indicated distortion of allele transmission for the same DBH marker (c2 = 4.44, P = 0.035). Together, these results provide evidence for allelic association of the DBH gene with typical migraine susceptibility (Fisher's Combined P-value = 0.006) and indicate that further research into the role of the DBH gene in migraine aetiology is warranted. Nitric oxide (NO) is emerging as a key molecule affecting the pain associated with migraine. Since nitric oxide synthase (NOS) enzymes catalyse the synthesis of NO, the genes that code for these enzymes are good candidates for migraine molecular genetic analysis. This research involved investigating the role of a functionally relevant bi-allelic tetranucleotide polymorphism located in the promoter region of the human inducible nitric oxide synthase (iNOS) gene in migraine aetiology. A large group of migraine affected individuals were genotyped and compared to an age and sex matched group of unaffected controls. Results of a chi-squared analysis indicated that allele distributions for both migraine cases and controls were not significantly different (c2 = 1.93, P = 0.16). These findings offer no evidence for an allelic association of the tested iNOS polymorphism with the common forms of the disease and therefore do not support a role for this gene in migraine pathogenesis. In summary, this research involved linkage and association analysis of migraine candidate genes and genomic susceptibility regions. Whilst, the known FHM gene (CACNA1A) was excluded for significant involvement in typical migraine the adjacent INSR gene has been associated. Migraine is genetically heterogeneous and the results of this research also provide good evidence that the DBH gene is involved in disease predisposition, whilst the DRD2, SERT and INOS gene were not shown to be implicated. An additional susceptibility region for typical migraine is also likely to localise to chromosome 1q31. Overall, the results presented in this thesis have contributed valuable data to the understanding of the molecular genetics of migraine with and without aura. Future research into the molecular pathophysiological mechanisms of migraine will greatly facilitate the development of more effective diagnosis and treatment strategies.

Migraine, comprised of migraine with aura (MA) and migraine without aura (MO), is a painful neurovascular disease, affecting approximately 16% of the general population. It is characterised by a wide variety of symptoms including headache, nausea and vomiting, and photo- and phonophobia. The disorder is complex involving not only multiple genes, but also specific environmental factors, which can induce attacks in genetically predisposed individuals. Hyperhomocysteinaemia is a known risk factor for cerebrovascular, peripheral vascular and coronary heart disease. The Methylenetetrahydrofolate Reductase (MTHFR) enzyme is involved in homocysteine metabolism. Furthermore, it has been reported that a homozygous mutation (677C to T; Ala to Val) in the 5,10-MTHFR gene is associated with an elevation in plasma homocysteine levels (Frosst et al., 1995). This common mutation in the MTHFR gene has recently been associated with migraine with aura in a Japanese cohort (Kowa et al., 2000). The present study was designed to determine the prevalence of the MTHFR C677T mutation in Australian patients with migraine and to determine whether this mutation is associated with the disease in Caucasians. A large case-control study, consisting of 270 patients with migraine (167 with aura and 103 without aura), and 270 normal matched controls was investigated. Genotypic results indicated that the prevalence of the homozygous (T/T) genotype in migraine sufferers (15%) was higher than that of controls (9%) (P = 0.084). Furthermore, the frequency of the mutant (T/T) genotype in individuals with MA (19%) was significantly higher than in controls (9%) (P = 0.006). Interestingly, the risk of MA was ~2.5-fold higher in suffers possessing the homozygous variant (OR = 2.52, CI: 1.42 - 4.47, P = 0.0012). To confirm the MTHFR allelic association with MA, family-based tests were performed in an independent pedigrees group, where only those with MA were considered affected. Results from both the Pedigree Disequilibrium Test (PDT) and Family-Based Association Test (FBAT) analysis revealed slight, although not significant (PDT test, P = 132; and FBAT test, P = 0.390), over-transmission of the mutant allele (T) from parents to affected offspring. However, despite the MTHFR variant having a high heterozygosity (0.48), there were a limited number of informative transmissions for the MTHFR variant in the pedigree group resulting in reduced power for these tests. In conclusion, our results support the trends reported in the Japanese migraine study and suggest that the homozygous 677T gene variant causing mild hyperhomocysteinaemia, is a genetic risk factor for migraine, and indicate that further studies investigating the role of this gene are warranted. Mutations in various ion channel genes are responsible for neurovascular and other neurological disorders. Inherited ion channel mutations or "channelopathies" are increasingly found to be the cause of various neurological disorders in humans. Wittekindt and colleagues (1998) reported that the calcium-activated potassium channel (hKCa3) gene is a good candidate for schizophrenia and bipolar disorder (BD), as well as for other neurological disorders such as migraine. The hKCa3 gene is a neuronal small conductance calcium-activated potassium channel, which contains a polyglutamine tract, encoded by a polymorphic CAG repeat in the gene. The hKCa3 gene encodes a protein of 731 amino acids containing two adjacent polyglutamine sequences in its N-terminal domain separated by 25 amino acids. The C-terminal polyglutamine sequence is highly polymorphic in length (Austin et al., 1999). hKCa3 plays a critical role in determining the firing pattern of neurons via the generation of slow after-polarization pulses and the regulation of intracellular calcium channels (Kohler et al., 1996). Three distinct mutations in the a1 calcium channel gene have been shown to cause SCA-6, episodic ataxia-2 and familial hemiplegic migraine (FHM) (Ophoff et al., 1996). The hKCa3 gene contains a highly polymorphic CAG repeat that was initially mapped (Chandy et al., 1997) to a schizophrenia locus on chromosome 22 (Pulver et al., 1994). Recently Austin et al (1999) re-mapped hKCa3 and found it to reside on chromosome 1q21, a region that has been linked to FHM (Austin et al., 1999), a rare subtype of MA (Ducros et al., 1997; Gardner et al., 1998), and a region recently showing genetic linkage to typical migraine (Lea et al., 2002). The hKCa3 polymorphism results in small variations in polyglutamine number, similar to those that occur in the calcium channel a1a subunit gene (CACNA1A), which is encoded by CAG expansions and thought to cause Spinocerebellar Ataxia Type 6 via loss of channel function (Austin et al., 1999). Given the recent linkage of FHM to the region of chromosome 1q21, to which hKCa3 resides, and also linkage of typical migraine to this region, a large case-control study investigating this hKCa3 CAG marker and consisting of 270 migraine and 270 stringently matched healthy controls was undertaken. Our results indicated that there was no statistically significant difference in allele distributions for this marker between migraine and non-migraine patients (P >0.05). No significant difference in the allelic distribution was observed in the MA or MO groups when compared to controls (P >0.05) and there was no significant difference in CAG repeat length distribution between the migraine group and controls (P = 0.92), or between the MA and MO groups (P = 0.72) collectively. Hence, the CAG repeat in this gene does not show expansion in migraine. Overall, our results provide no genetic evidence to suggest that the hKCa3 CAG repeat polymorphism is involved in migraine aetiology in Australian Caucasians. Thus the involvement of the hKCa3 gene in migraine is not likely, although the hKCa3 gene remains an important candidate for other neurological disorders that may be linked to the 1q21.3 chromosomal region.

Made available in DSpace on 2014-06-11T19:35:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-07-24Bitstream added on 2014-06-13T20:06:07Z : No. of bitstreams: 1 goncalves_dag_dr_arafo.pdf: 787079 bytes, checksum: f9a13097ef34fb8c6955b0484faedbb5 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Cefaléia é uma experiência humana universal e pode representar a expressão final de uma ampla variedade de agressões ao sistema nervoso humano. Disfunção temporomandibular (DTM) refere-se a um conjunto de condições caracterizadas por dor na articulação temporomandibular (ATM), na área periauricular ou nos músculos da mastigação, sons articulares e desvios ou restrições dos movimentos mandibulares. Sindromicamente representa a consequência de várias disfunções no sistema mastigatório. Cefaleias são sintomas comuns entre indivíduos com DTM. Além de serem prevalentes e potencialmente incapacitantes, evidências limitadas também sugerem que tipos específicos de cefaleias e DTM são condições comórbidas. Os objetivos globais dos estudos aqui apresentados foram testar se há associação entre DTM e cefaléias primárias, se existe especificidade nessa associação e finalmente se há diferença na magnitude da associação de acordo com subtipos de DTM e classificação das cefaléias primárias. Os estudos foram conduzidos em duas amostras distintas, sendo uma populacional e a outra clínica. Os dados do estudo populacional foram coletados por meio de dois questionários aplicados durante ligações telefônicas. Um deles abordava as características das cefaleias e baseava-se nos critérios da Sociedade Internacional de Cefaleias. O outro questionava a existência de sintomas relacionados às DTMs. No estudo clínico, o mesmo questionário foi usado para coletar informações sobre as cefaleias, e as DTMs foram classificadas por meio da aplicação do Critérios Diagnósticos de Pesquisa em Disfunção Temporomandibular (RDC/TMD). Concluiu-se que, em ambas as amostras, as DTMs são mais comuns entre indivíduos... / Headache is a nearly universal human experience, and may represent the final common expression of a wide variety of assaults upon the human nervous system. TMD refers to a group of conditions characterized by pain in the temporomandibular joint (TMJ), in the preauricular area or muscles of mastication, TMJ sounds, and by deviations or restriction in mandibular range of motion. Syndromically represents the consequences of several disorders into the masticatory system. Headaches have been seen as a common symptom among individuals with TMD. Beyond being prevalent and disabling disorders, limited evidence also suggest that specific headache disorders and TMD are comorbid. Controversies regarding this relation include the specificity of the association and the influence of severity of one on the other. The aims of the studies here presented were explore the relation between primary headaches and TMD focusing on prevalence of both in a populational sample, as well as to clarify the relation between TMD sub-types and TMD chronic pain severity on diagnostic and frequency of primary headaches. Sudies were conducted on two different samples, one of them a populational sample and the other a clinical sample. Data from the populational study was collected using two different questionnaires about TMD symptoms and headache features, based on International Headache Society criterias, applied by means a telephone call. On clinical study data related to headache was collected using the sample questionnaire, and TMD was classified using the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). It was found that TMD symptoms are more common in migraine, episodic tension-type headache (ETTH) and chronic daily headache (CDH) relative to individuals without headache in both samples. Magnitude of association is higher... (Complete abstract click electronic access below)

Orientador: Cinara Maria Camparis / Banca: Marcelo Eduardo Bigal / Banca: José Geraldo Speciali / Banca: Mirian Aparecida Onofre / Banca: Francisco de Assis Mollo Júnior / Resumo: Cefaléia é uma experiência humana universal e pode representar a expressão final de uma ampla variedade de agressões ao sistema nervoso humano. Disfunção temporomandibular (DTM) refere-se a um conjunto de condições caracterizadas por dor na articulação temporomandibular (ATM), na área periauricular ou nos músculos da mastigação, sons articulares e desvios ou restrições dos movimentos mandibulares. Sindromicamente representa a consequência de várias disfunções no sistema mastigatório. Cefaleias são sintomas comuns entre indivíduos com DTM. Além de serem prevalentes e potencialmente incapacitantes, evidências limitadas também sugerem que tipos específicos de cefaleias e DTM são condições comórbidas. Os objetivos globais dos estudos aqui apresentados foram testar se há associação entre DTM e cefaléias primárias, se existe especificidade nessa associação e finalmente se há diferença na magnitude da associação de acordo com subtipos de DTM e classificação das cefaléias primárias. Os estudos foram conduzidos em duas amostras distintas, sendo uma populacional e a outra clínica. Os dados do estudo populacional foram coletados por meio de dois questionários aplicados durante ligações telefônicas. Um deles abordava as características das cefaleias e baseava-se nos critérios da Sociedade Internacional de Cefaleias. O outro questionava a existência de sintomas relacionados às DTMs. No estudo clínico, o mesmo questionário foi usado para coletar informações sobre as cefaleias, e as DTMs foram classificadas por meio da aplicação do Critérios Diagnósticos de Pesquisa em Disfunção Temporomandibular (RDC/TMD). Concluiu-se que, em ambas as amostras, as DTMs são mais comuns entre indivíduos... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Headache is a nearly universal human experience, and may represent the final common expression of a wide variety of assaults upon the human nervous system. TMD refers to a group of conditions characterized by pain in the temporomandibular joint (TMJ), in the preauricular area or muscles of mastication, TMJ sounds, and by deviations or restriction in mandibular range of motion. Syndromically represents the consequences of several disorders into the masticatory system. Headaches have been seen as a common symptom among individuals with TMD. Beyond being prevalent and disabling disorders, limited evidence also suggest that specific headache disorders and TMD are comorbid. Controversies regarding this relation include the specificity of the association and the influence of severity of one on the other. The aims of the studies here presented were explore the relation between primary headaches and TMD focusing on prevalence of both in a populational sample, as well as to clarify the relation between TMD sub-types and TMD chronic pain severity on diagnostic and frequency of primary headaches. Sudies were conducted on two different samples, one of them a populational sample and the other a clinical sample. Data from the populational study was collected using two different questionnaires about TMD symptoms and headache features, based on International Headache Society criterias, applied by means a telephone call. On clinical study data related to headache was collected using the sample questionnaire, and TMD was classified using the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). It was found that TMD symptoms are more common in migraine, episodic tension-type headache (ETTH) and chronic daily headache (CDH) relative to individuals without headache in both samples. Magnitude of association is higher... (Complete abstract click electronic access below) / Doutor

Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-10-20T11:59:35Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese Doutorado_Raimundo Pereira da Silva-Néto.pdf: 12833897 bytes, checksum: 61d0b7e980e72887cfbdb059a1866d40 (MD5) / Made available in DSpace on 2016-10-20T11:59:35Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese Doutorado_Raimundo Pereira da Silva-Néto.pdf: 12833897 bytes, checksum: 61d0b7e980e72887cfbdb059a1866d40 (MD5) Previous issue date: 2016-04-01 / Cefaleias primárias são decorrentes de disfunção cerebral e incluem migrânea, cefaleia do tipo tensional, cefaleias trigêmino-autonômicas e outras. Diversos fatores podem desencadear crises de cefaleia, mas os odores, especialmente o perfume, estão associados à migrânea. Objetivos: Caracterizar a estimulação olfatória como fator desencadeante de crises de cefaleia e de diferenciação entre migrânea e outras cefaleias primárias. Sujeitos e Métodos: O estudo foi prospectivo, experimental, randomizado com comparação de grupos, realizado no período de março a junho de 2015. Foram convidados 158 voluntários (73 homens e 85 mulheres) diagnosticados com cefaleias primárias, de acordo com os critérios da International Classification of Headache Disorders, Third Edition (beta version) (ICHD-3β). O estudo foi realizado por dois examinadores; atribuiu-se ao primeiro, diagnosticar a presença e o tipo de cefaleia primária, enquanto o segundo foi responsável pela exposição dos voluntários ao odor e pelo registro dos efeitos dessa exposição. Resultados: Dos 158 voluntários com cefaleia, houve 72 (45,6%) casos de migrânea e 86 (54,4%) com outras cefaleias primárias. Dos 72 migranosos, 53 (73,6%) eram mulheres e 19 (26,4%), homens e dos 86 casos de outras cefaleias primárias, 32 (37,2%) eram mulheres e 54 (62,8%), homens. A idade dos voluntários com migrânea e com outras cefaleias primárias foi, respectivamente, 22,5±3,10 e 22,9±3,10 anos. Essas diferenças não foram significantes (tmédias=0,666; p=0,566). Nos dois grupos, houve diferença nas características da cefaleia (c2=4,132; p=0,046). O odor desencadeou cefaleia (25/72; 34,7%) e náusea (5/72; 6,9%) apenas nos voluntários com migrânea, correspondendo a 19,0% (30/158) da amostra e em nenhum com outras cefaleias primárias (χ²=43,78; p<0,001). A cefaleia ocorreu mais frequentemente associada à náusea (p=0,146) e de localização bilateral (p=0,002) nos migranosos que apresentaram cefaleia desencadeada por odor. A cefaleia foi desencadeada após 118,0±24,6 min e a náusea após 72,8±84,7 min da exposição ao odor. Conclusões: O odor desencadeou crises de cefaleia ou náusea apenas nos pacientes com migrânea. Portanto, cefaleia desencadeada por odores poderá ser considerada um fator de diferenciação entre migrânea e outras cefaleias primárias e esse gatilho parece muito específico da migrânea. / Primary headaches are due to brain dysfunction and include migraine, tension-type headache, trigeminal autonomic cephalalgias and others. Several factors can trigger headache attacks, but odors, especially perfume, are associated with migraine. Objectives: To characterize the olfactory stimulation as a trigger of headaches and differentiation of crises between migraine and other primary headaches. Subjects and Method: The study was prospective, experimental, randomized with comparison of groups and conducted from March to June 2015. One hundred fifty-eight volunteers (73 men and 85 women) were diagnosed with primary headaches, according to criteria of the International Classification of Headache Disorders, third edition (beta version) (ICHD-3β). The study was conducted by two examiners and assigned to the first to diagnose the presence and type of primary headache, while the second was responsible for exposing the volunteers to odor and the recording the effects of this exposure. Results: Of the 158 volunteers with headache, there were 72 (45.6%) cases of migraine and 86 (54.4%) with other primary headaches. Of the 72 migraineurs, 53 (73.6%) were female and 19 (26.4%) male and 86 cases of other primary headaches, 32 (37.2%) were female and 54 (62.8%) male. The age of subjects with migraine and other primary headache was, respectively, 22.5 ± 3.10 and 22.9 ± 3.10 years. These differences were not significant (tmean=0.666; p=0.566). In both groups, there were differences in headache characteristics (c2=4.132; p=0.046). Headache attacks (25/72; 34.7%) and nausea (5/72; 6.9%) were triggered only in subjects with migraine, corresponding to 19.0% (30/158) of the sample, but in no with other primary headaches (χ²=43.78; p<0.001). Headache occurred more often associated with nausea (p=0.146) and bilateral location (p=0.002) in migraineurs who had headache triggered by odor. Headache was triggered after 118.0±24.6 min and nausea after 72.8±84.7 min of exposure to odor. Conclusions: The odor triggered headache attacks or nausea only in migraineurs. Therefore, headache triggered by odors may be considered a factor of differentiation between migraine and other primary headaches and this trigger seems very specific of migraine.

Background Arboviral diseases are one of the most common causes of acute febrile illness (AFI) and a significant health problem in South America. In Peru, laboratory etiologic identification of these infections occurs in less than 50% of cases, leading to underdiagnoses of important emerging arboviruses. Aim To assess the prevalence of the Dengue (DENV), Oropouche (OROV), Chikungunya (CHIKV), Mayaro (MAYV) and Zika (ZIKV) viruses in patients with acute febrile illness from Puerto Maldonado (Peru). Methodology Serum samples were obtained from patients with AFI during January 2016 to March 2016. A total of 139 specimens were analyzed for the presence of DENV, OROV, CHIKV, MAYV, and ZIKV using polymerase chain reaction (PCR). Results CHIKV in 9.4% and OROV in 8.6% were the most prevalent arboviruses, followed by DENV and ZIKV, with a prevalence of 6.5% and 5%, respectively. Among all patients, the most common symptoms accompanying fever were headaches 79.9%, muscle pain 65.5% and joint pain 63.3%. Conclusions During this short 3-month period, 4 arboviruses were detected by PCR, CHIKV and OROV being the most common arboviruses in Puerto Maldonado (Peru). Thus, it is crucial to include OROV detection in the national health surveillance. Furthermore, the etiologic clinical diagnosis of arboviral infections is not possible due to the low specificity of symptoms; therefore an increase of cases confirmed by molecular diagnostic methods will enhance arboviral surveillance in Peru.

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The aim of this research is the occurrence of symptoms of the limbic dysfunction in patients suffering from headaches. By means of the questionnaire survey method was tested group of people with this diagnosis. The basic premise is the assumption that certain symptoms, specifically abnormalities in brain activity, occur more frequently in patients with this diagnosis. The theoretical part of this thesis concentrates on the function of the temporal lobe and the limbic system, a brief outline of the characteristics of temporo-limbic dysfunction and a summary overview of headaches. The research part is addressed to the evaluation questionnaire study and answers to the questions asked. Keywords Temporal lobe, limbic system, temporolimbic dysfunction, headaches, migraine, comorbidity,questionnaire

INTRODUÇÃO. A comorbidade entre cefaléias e transtornos psiquiátricos vem sendo enfatizada como um dos aspectos mais importantes no manejo dos pacientes com cefaléias primárias. Os transtornos de ansiedade, além dos de humor, são um dos diagnósticos de maior importância neste contexto. O transtorno de ansiedade generalizada (TAG) é o transtorno de ansiedade mais associado à enxaqueca. Apesar da relevância do tema, é surpreendente a escassez de estudos sobre o impacto das cefaléias primárias em pacientes com TAG. OBJETIVO. O objetivo deste estudo foi de avaliar a prevalência ao longo da vida e o impacto das cefaléias primárias em pacientes com e sem TAG. MÉTODOS. Sessenta pacientes foram incluídos no estudo: 30 pacientes com diagnóstico de TAG, de acordo com a entrevista estruturada SCID-1/P, e 30 controles saudáveis. Todos os pacientes passaram por entrevista clínica enfocando variáveis demográficas (idade, sexo, escolaridade e estado civil), antropométricas (peso, altura e IMC), relativas às cefaléias (intensidade, duração, freqüência, aura, tempo de história e consumo de analgésicos), gravidade da sintomatologia (ansiosa, depressiva, de fadiga e de sonolência diurna) e conseqüências médico-sociais (incapacidade funcional, utilização de serviços de saúde e qualidade de vida). As cefaléias primárias foram avaliadas através de entrevista estruturada e foram empregados os critérios da Classificação Internacional das Cefaléias (2a edição) para realização de seu diagnóstico. RESULTADOS. 86,6% dos pacientes com TAG receberam algum diagnóstico de cefaléia, sendo a enxaqueca o diagnóstico mais comum. Comparados aos controles, os pacientes com TAG apresentaram odds ratio maior para cefaléias primárias (RC=7,43) e também para enxaqueca (RC=13,00), enxaqueca episódica (RC=6,88) e aura (RC=10,55). Já nos controles, apenas 47% receberam algum diagnóstico de cefaléia, sendo CTT episódica infreqüente o diagnóstico mais comum. DISCUSSÃO/CONCLUSÃO. O diagnóstico de cefaléias primárias é mais comum em pacientes com TAG do que nos controles. A enxaqueca é o diagnóstico mais comum em pacientes com TAG e também mais freqüente em TAG que em controles. A cefaléia do tipo tensional (CTT) freqüente é igualmente comum em ambos os grupos. É importante realizar o diagnóstico de cefaléias primárias em pacientes com transtornos de ansiedade, em especial o TAG, pois a sua correta avaliação deve implicar em um manejo mais preciso dos pacientes com TAG e resultar em desfechos clínicos mais favoráveis. / OBJECTIVES. Anxiety disorders and headaches are comorbid conditions, but no research has been done on the prevalence and impact of primary headaches in generalized anxiety disorder (GAD) patients. The study\'s aim was to analyze lifetime prevalence and impact of primary headaches in patients with and without generalized anxiety disorder. METHODS. Sixty participants were enrolled in the study; 30 GAD patients diagnosed according to the DSM-IV were compared to 30 healthy control subjects. All patients were interviewed for psychiatric assessment using the SCID-I/P. Primary headaches were diagnosed using ICHD-II criteria for structured interview. RESULTS. Migraine was the most common diagnosis in generalized anxiety disorder patients. The prevalence of migraine was highest among GAD patients as opposed to controls (66.7% vs 13.3%; p<0.001; OR=13.00; 95% CI=3.55-47.6), episodic migraine (43.3% vs 10%; p=0.004; OR=6.88; 95% CI=1.71-27.75), chronic daily headache (20% vs 0; p=0.024) and aura (26.6% vs 3.3%; p=0.026; OR=10.55; 95% CI=1.23-90.67). Tension Type Headache (TTH) was equal for controls and the GAD group (20% vs 33.3%; p=0.243).The characteristics of migraines (frequency, intensity, duration, and consumption of analgesics), symptoms such as anxiety, depression, fatigue, and daytime sleepiness, as well as the medical-social consequences (functional incapacity, use of health services and quality of life) were worse in GAD patients than in controls. CONCLUSION. Primary headaches in general, and migraine in particular, are significantly more common in GAD patients than controls. GAD aggravates headaches. Primary headache diagnosis is important for anxiety disorder patients, particularly those with GAD, since correct assessment may lead to better patient management and clinical outcomes.