Cluster Headache: On the Mechanism Behind Attack-Related Sweating

Cephalalgia ◽  
1983 ◽  
Vol 3 (3) ◽  
pp. 175-185 ◽  
Author(s):  
Carsten Saunte ◽  
David Russell ◽  
Ottar Sjaastad

Eighteen cluster headache patients were studied using body heating or exercise tests; all but two of them were also studied with a pilocarpine test (0.1 mg/kg body wt, s.c.). Evaporimeter measurements were made on both sides of the forehead under standard conditions in a thermo room. Heat- and exercise-induced sweating was dearly less pronounced on the symptomatic side than on the non-symptomatic side of the forehead, and was significantly different compared to controls. Pilocarpine on the other hand induced a clearly more pronounced response on the symptomatic side than on the non-symptomatic side, which was also statistically significantly higher than in the control group. These findings suggest a supersensitivity of the sweat glands to pilocarpine on the symptomatic side of the forehead in most cases of cluster headache.

Cephalalgia ◽  
1983 ◽  
Vol 3 (3) ◽  
pp. 191-199 ◽  
Author(s):  
Carsten Saunte ◽  
David Russell ◽  
Ottar Sjaastad

In eight patients with chronic paroxysmal hemicrania (CPH), forehead sweating was measured after various provocation tests-body heating, exercise, and subcutaneous pilocarpine administration (0.1 mg/kg body weight). Evaporation was measured bilaterally on the forehead with an Evaporimeter (in g/m2/h). This was carried out in a thermo room under standardized conditions. There was no definite deficit in heat-induced or exercise-induced sweating on the symptomatic side of the forehead, contrary to findings in cluster headache. Neither did pilocarpine lead to any marked initial, temporary predominance of sweating on the symptomatic side, which has previously been found in cluster headache. In cluster headache there may be denervation supersensitivity of the sweat glands in the forehead of the symptomatic side. The present study does not therefore provide evidence for supersensitivity phenomena which could explain the homolateral forehead sweating increase seen during attacks in some CPH patients. The localized sweating increase in the forehead during attacks of CPH may possibly be a result of direct sympathetic stimulation.


Cephalalgia ◽  
1988 ◽  
Vol 8 (3) ◽  
pp. 219-226 ◽  
Author(s):  
Deusvenir de Souza Carvalho ◽  
Roll Salvesen ◽  
Trond Sand ◽  
Stephen E Smith ◽  
Ottar Sjaastad

Pupillometric studies were carried out in eight patients with chronic paroxysmal hemicrania (CPH) and in age- and sex-matched controls in the basal condition and after instillation of 2% tyramine (CPH, n = 5; controls, n = 17), 1% OH-amphetamine (CPH, n = 6; controls, n = 12), and 1% phenylephrine (CPH, n = 6; controls, n = 17). The pupil on the symptomatic and non-symptomatic sides in CPH patients was significantly smaller in the basal condition than in controls, particularly on the symptomatic side. The mydriatic responses to pharmacologic stimulation were essentially similar on the symptomatic and non-symptomatic sides. An evaporimetric study of the forehead sweat glands, using the body heating and pilocarpine tests, was also carried out in these patients and in age- and sex-matched controls. “Early”, “intermediate”, and “late” measurements demonstrated symmetry of forehead sweating. The findings for both methods of examination thus contrast with those in cluster headache patients. Pupillometric and forehead sweating patterns therefore suggest differences in the pathogenesis of the two headache entities. These tests may be used to distinguish CPH and cluster headache clinically.


Cephalalgia ◽  
1984 ◽  
Vol 4 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Maria Boccuni ◽  
Giorgio Morace ◽  
Umberto Pietrini ◽  
Maria Cristiana Porciani ◽  
Marcello Fanciullacci ◽  
...  

Ten cluster headache patients and 10 healthy controls were subjected to electrocardiographic and pupillometric procedures in a search for cardiac and pupillary sympathergic asymmetry. Sympathergic stimulation was provoked by hyperventilation and by instilling tyramine into both eyes. In the control group, hyperventilation changed neither the T-wave form and polarity nor the QTc. Tyramine provoked an equal mydriasis on the two sides. In cluster headache sufferers, hyperventilation produced changes in the T-wave form and polarity as well as an increase of the QTc due to a disproportionate shortening of the R-R and Q-T intervals. An unequal mydriasis was noted after tyramine instillation due to less marked response on the symptomatic side. The observed electrocardiographic abnormalities are considered an expression of an asynchronous repolarization attributed to a sympathergic asymmetry. It is postulated that both the cardiac and pupillary sympathetic imbalance associated with cluster headache are central in origin.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Üçler Kısa ◽  
M. Murad Başar ◽  
Timuçin Şipal ◽  
Özlem Doğan Ceylan

AbstractObjectiveThe aim of the present study was to investigate serum ghrelin and orexin levels in patients with varicocele and compare these levels with idiopathic infertile male and healthy control cases.MethodsThis study enrolled 24 men with varicocele, 24 males having idiopathic infertility, and 21 fertile men as the control group. Hormonal analyses, ghrelin and orexin levels were measured samples. Semen was analyzed after 3 and 5 days of sexual abstinence.ResultsSerum ghrelin levels were statistically different among the three groups (p=0.015), and it was due to a statistically lower level in group-1 than the level in the control cases (p=0.012). On the other hand, serum orexin levels were lower than healthy subjects in infertile groups with/without varicocele, but there was no difference (p=0.685) among three groups. Serum ghrelin level showed a negative and significant correlation only with sperm motility (r=−0.646, p=0.022), there was no correlation with other parameters. On the other hand, serum orexin levels did not show a significant correlation with seminal parameters.ConclusionBoth new investigated peptides ghrelin and orexin have regulatory effects on testicular function. However, ghrelin has a more obvious and complex effect on spermatogenesis. Impaired seminal parameters, especially motility was associated with increased serum ghrelin levels in infertile patients, especially with varicocele.


2017 ◽  
Vol 7 (2) ◽  
pp. 67 ◽  
Author(s):  
Mehmet Fatih Ocal

Integrating the properties of computer algebra systems and dynamic geometry environments, Geogebra became an effective and powerful tool for teaching and learning mathematics. One of the reasons that teachers use Geogebra in mathematics classrooms is to make students learn mathematics meaningfully and conceptually. From this perspective, the purpose of this study was to investigate whether instruction with Geogebra has effect on students’ achievements regarding their conceptual and procedural knowledge on the applications of derivative subject. This study adopted the quantitative approach with pre-test post-test control group true experimental design. The participants were composed of two calculus classrooms involving 31 and 24 students, respectively. The experimental group with 31 students received instruction with Geogebra while the control group received traditional instruction in learning the applications of derivative. Independent samples t-test was used in the analysis of the data gathered from students’ responses to Applications of Derivative Test which was subjected to them before and after teaching processes. The findings indicated that instruction with Geogebra had positive effect on students’ scores regarding conceptual knowledge and their overall scores. On the other hand, there was no significant difference between experimental and control group students’ scores regarding procedural knowledge. It could be concluded that students in both groups were focused on procedural knowledge to be successful in learning calculus subjects including applications of derivative in both groups. On the other hand, instruction with Geogebra supported students’ learning these subjects meaningfully and conceptually.


2017 ◽  
Vol 14 (4) ◽  
pp. 4561 ◽  
Author(s):  
Hamza Albayrak ◽  
Paşa Yalçın ◽  
Sema Altun Yalçın

In this research, it was aimed to determine the effect of learning stations designed for astronomy subjects on the academic achievement of students and give an alternative method for teaching astronomy in the literature. The mixed approach in which mixed quantitative and qualitative methods were used together was preferred in the study. Among the quantitative methods, the pre-test and post-test model of the semi-experimental method was used; in addition, the protocols were applied about the method, which was used. The research was carried out with 98 seventh class students, who were under education in a secondary school located in the Eastern Anatolia Region of Turkey in the education year of 2015-2016. The quantitative data were analysed via the Astronomy Achievement Test (AAT) developed by the researchers and had 0,795 Cronbach Alpha reliability coefficient. The astronomy subjects in science lesson of the seventh class were studied with the experimental group through the learning stations; on the other hand, they were studied with the students in the control group through the activities stated in the textbook prepared by the Ministry of Education. The AAT was applied for the experimental, control groups using the pre- and post-tests, and data were analysed with the t-test. Meaningful difference was determined in AAT pre-test average scores of experimental and control groups; on the other hand, a meaningful difference was determined between the groups according to the independent samples t-test results applied with the average scores of the post-test(p<0.05). As a result of the analysis of the data gathered with the Station Observation Form (SOF), developed for the research, it was found out that the students recognise the learning stations as a technique of useful, entertaining, engaging, and easy-to-learn that enable them to learn astronomy topics effectively.Extended English abstract is in the end of Full Text PDF (TURKISH) file. ÖzetBu araştırmada, astronomi konuları için tasarlanan öğrenme istasyonlarının öğrencilerin akademik başarılarına etkisini belirlemek ve literatüre astronomi öğretimi için alternatif bir yöntem sunmak amaçlanmıştır.  Araştırmada karma nicel ve nitel yöntemlerin birlikte kullanıldığı karma yaklaşım tercih edilmiştir. Nicel yöntemlerden yarı deneysel yöntemin ön test- son test modeli kullanılmış olup ayrıca uygulanan yöntem hakkında öğrenci görüşmeleri yapılmıştır. Araştırma 2015- 2016 eğitim öğretim döneminde Doğu Anadolu Bölgesinde yer alan bir ortaokulda öğretim gören 98 yedinci sınıf öğrenci ile yürütülmüştür.  Nicel veriler için araştırmacılar tarafından geliştirilen ve cronbac’h alpha güvenlik katsayısı 0.795 olan Astronomi Başarı Testi (ABT) kullanılmıştır.  Yedinci sınıf fen bilimleri dersi içerisindeki astronomi konuları deney grubu ile öğrenme istasyonları yardımıyla, kontrol grubundaki öğrencilerle MEB’in ön gördüğü ders kitabında yer alan etkinlikler takip edilerek işlenmiştir. ABT deney ve kontrol gruplarına ön test- son test olarak uygulanarak t testi ile analiz edilmiştir. Araştırmada deney ve kontrol gruplarının ABT ön test ortalama puanları arasında anlamlı bir farklılık belirlenmişken, son test puan ortalamaları ile yapılan bağımsız örnekler t testi sonuçlarına göre gruplar arasında anlamlı bir farklılık belirlenmiştir (p<0.05). Araştırma için geliştirilen İstasyon Gözlem Formu (İGF) ile elde edilen verilerinin analizi sonucunda öğrenciler öğrenme istasyonlarını, astronomi konuları için etkili öğrenmeyi sağlayan, faydalı, eğlenceli, ilgi çekici ve kolay öğrenmeyi destekleyen bir teknik olarak gördükleri bulunmuştur.


2021 ◽  
Vol 11 (2) ◽  
pp. 193-201
Author(s):  
Nasser Ghanem ◽  
Marwa Said Faheem ◽  
Romysa Samy ◽  
Ashraf Hesham Barkawi

It is documented that heat stress caused impairment on the reproductive performance of dairy animals. However, there are few reports that have focused on the molecular and intracellular responses of in vitro cultured buffalo granulosa cells during heat elevation. The present study was conducted to investigate the effect of heat elevation during in vitro culture of buffalo granulosa cells on their viability, quality, mitochondrial activity, and transcriptional activity. Granulosa cells were harvested after aspiration of cumulus-oocytes complexes that were collected from abattoir ovaries. The granulosa cells were cultured in vitro either at a normal physiological temperature suitable for oocyte maturation and embryo development (38.5°C) or exposed to the elevated temperature of 40.5°C on day 3 of culture (the first two days were for confluence) for two hours of culture then continued at 38.5°C up to day 7 of culture. The viability of granulosa cells was measured using trypan blue and quality was estimated by measuring the level of intracellular reactive oxygen species (ROS) on day 7. Moreover, metabolic activity was performed by measuring the fluorescent intensity of mitochondria. Moreover, transcriptional activity was done by profiling four selected candidate genes using quantitative real-time PCR. The results indicated that the granulosa cells viability rate significantly decreased in the heat stress group (25.1 ± 3.7), compared to the control group (36.6 ± 5.3) on confluence day (day 3). In addition, the viability rate on the last day of culture (day 7) decreased in heat stress, compared to control (83.7 ± 4.5 and 97.4 ± 0.4, respectively). On the other hand, there was a nonsignificant difference in ROS profile between the control (21.7*104 ± 1.3) and the heat-stressed group (15.7 ± 0.7) on day 7 of culture. However, the mitochondrial fluorescent intensity was higher in the control (21.9 ± 1.9) than in the heat-stressed group (15.4 ± 0.8) on day 7 of culture. The expression of cellular defense (HSF1) and apoptosis-inducing gene (P53) were significantly up-regulated in granulosa cells exposed to heat elevation, compared to the control group. On the other hand, the steroidogenesis-regulating gene (StAR) was down-regulated in granulosa cells cultured under heat shock, compared to the control group. In conclusion, heat stress reduced the viability of granulosa cells by inducing the expression of an apoptosis-related gene (P53) and compromised expression of genes regulating the steroid biosynthesis, which resulted in up-regulation of cell defense gene (HSF1) in an attempt to ameliorate the deleterious effect of heat stress on the biological activity of the granulosa cells.


2019 ◽  
Vol 38 (11) ◽  
pp. 1275-1282
Author(s):  
A Pergel ◽  
L Tümkaya ◽  
MK Çolakoğlu ◽  
G Demiral ◽  
S Kalcan ◽  
...  

Carbon tetrachloride (CCL4) is often employed in the production of chlorofluorocarbons, petroleum refining, oil and rubber processing, and laboratory applications. Oral, subcutaneous, and inhalation exposure to CCL4 in animal studies have been shown to be capable of leading to various types of cancer (benign and malignant, liver, breast, and adrenal gland tumors). The present study also evaluated the protective role of infliximab (INF) against the deleterious effects of CCL4 on the intestinal system. Twenty-four male Sprague-Dawley rats were randomly assigned into three groups, control ( n = 8), CCL4 ( n = 8), and CCL4 + INF ( n = 8). The control group received 1 mL isotonic saline solution only via intraperitoneal (i.p.) injection. The CCL4 group received a single i.p. dose of 2 mL/kg CCL4. The CCL4 + INF group received a single i.p. dose of 7 mg/kg INF followed 24 h later by a single dose of 2 mL/kg CCL4. All rats were euthanized 2 days following drug administration. CCL4 group samples also exhibited diffuse loss of enterocytes, vascular congestion, neutrophil infiltration, an extension of the subepithelial space and significant epithelial lifting along the length of the villi with a few denuded villous tips. In addition, CCL4 treatment increased intestinal malondialdehyde (MDA) level and caspase-3 positivity. On the other hand, INF decreased MDA levels, caspase-3 positivity, and loss of villous. Our findings suggest that CCL4 appears to exert a highly deleterious effect on the intestinal mucosa. On the other hand, INF is effective in preventing this CCL4-induced intestinal injury by reducing oxidative stress and apoptosis.


Biologia ◽  
2011 ◽  
Vol 66 (1) ◽  
Author(s):  
Ján Praslička ◽  
Janka Schlarmannová ◽  
Barbora Matejovičová ◽  
Ján Tancík

AbstractThe effectiveness of the predatory mite Typhlodromus pyri and of an application of Polysulphide-Ca was compared during 2006–2008. The experiment showed differences in infestation levels of pear leaves caused by Eriophyes pyri. The highest percentage of leaves with symptoms was found in untreated control group (⊘ 20.9%); the lowest percentage was found in plots treated with T. pyri (⊘ 3.7%); and a slightly higher percentage was found in plots treated with Polysulphide-Ca (⊘ 8.6%). During 2006–2008 the percentage of leaves with symptoms was approximately the same only in the untreated control plots (from 20.3% to 21.5%). The percentage of leaves with characteristic symptoms in plots treated with T. pyri decreased from 5.5% in 2006 to 4.3% in 2007, and to 1.3% in 2008. On the other hand, the percentage of leaves with symptoms in plots treated with Polysulphide-Ca increased from 5.5% in 2006 to 8.5% in 2007, and to 11.8% in 2008. The intensity of symptoms on infested leaves was also different depending on treatments and years. The average biological activity was 82.4% in plots receiving releases of T. pyri and 58.8% in plots treated with Polysulphide-Ca.


2007 ◽  
Vol 19 (1) ◽  
pp. 317
Author(s):  
T. S. Kim ◽  
Y. Cao ◽  
H. T. Cheong ◽  
B. K. Yang ◽  
C. K. Park

Sperm mediated gene transfer (SMGT) is based on the ability of spermatozoa to bind and internalize exogenous DNA and transfer it into the oocytes at fertilization. The purpose of this study was to assess introducing exogenous DNA into boar spermatozoa by DNA solution or DNA/liposome complex under different conditions (period of incubation, exogenous DNA, liposome, and concentration of spermatozoa). Genomic DNA of sperm loaded with DNA by treatment was isolated by alkaline lysis. Quantitation of exogenous DNA amplified by PCR was analyzed by agarose electrophoresis densitometry. The quality of treated spermatozoa under the best conditions or no treatment (control) was evaluated during incubation (0, 2, 4, and 6 h) for viability (SYBR-14/PI), motility (Makler counting chamber), morphology (rose bengal staining), and acrosomal status (Coomassie staining). Sperm loaded with DNA also were used for in vitro fertilization. Immature oocytes incubated in TCM-199 medium for 44 h were fertilized in mTBM medium for 6 h and cultured in PZM-3. Cleavage and development of embryos were assessed on Days 2 and 7 of culture, respectively. Transfection rates at the blastocyst stage were assessed by PCR analysis. Data were evaluated by Duncan&apos;s multiple-range test using the GLM procedure. In the preliminary experiment, DNA uptake of spermatozoa by DNA solution and liposome/DNA complex was completed within 90-120 min. Transfection efficiency of spermatozoa was significantly (P &lt; 0.05) higher in the 105 spermatozoa group than in the other groups (104, 106, and 107 spermatozoa). The transfection efficiency was gradually increased by increasing the concentration of exogenous DNA. On the other hand, viability of transfected spermatozoa by all treatments (control, DNA solution, and DNA/liposome) at 0 h (72.3 � 0.2, 70.8 � 1.8, and 68.0 � 2.2%, respectively) of storage was significantly (P &lt; 0.05) lower than for fresh spermatozoa (83.3 � 1.7%). Survival and motility of all treatments after 4 h of storage were significantly (P &lt; 0.05) lower than at 0 and 2 h. Both abnormality and acrosome reaction of spermatozoa were gradually increased with prolonged storage periods. On the other hand, the cleavage rate of embryos by DNA/liposome complex (56.3 � 2.3%) was significantly (P &lt; 0.05) lower compared to both DNA solution (64.0 � 1.1%) and control (67.8 � 2.3%). The developmental rates of blastocysts were significantly (P &lt; 0.05) lower in the liposome/DNA complex and DNA solution groups (9.1 � 1.3 and 11.3 � 0.8%) than in the control group (22.2 � 0.6%). The transfection rates of blastocysts were higher in the liposome/DNA group (54.3 � 12.0%) than in the DNA solution group (38.7 � 6.6%). These results show that the SMGT method under the control conditions efficiently transfers exogenous DNA into the porcine oocytes. This work was supported by the Research on the Production of Bio-organs (No. 2005 03020302) Ministry of Agriculture and Forestry, Republic of Korea


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