Brain Perfusion MRI Findings in Patients with Behcet's Disease

Objective. To search brain perfusion MRI (pMRI) changes in Behcet's disease (BD) with or without neurological involvement. Materials and Method. The pMRI were performed in 34 patients with BD and 16 healthy controls. Based on neurologic examination and post-contrast MRI, 12 patients were classified as Neuro-Behcet (group 1, NBD) and 22 patients as BD without neurological involvement (group 2). Mean transit time (MTT), time to peak (TTP), relative cerebral blood volume (rCBV), and relative cerebral blood flow (rCBF) were obtained and compared to those of healthy control group (group 3). Results. There was a significant difference in the MTT and rCBF within the pons and parietal cortex in groups 1 and 2. rCBV increased in cerebral pedicle in group 1 compared with groups 2 and 3. In the temporal lobe white matter, prolonged MTT and decreased rCBF were found in groups 1 and 2. In the corpus striatum, internal capsule, and periventricular white matter, rCBF increased in group 1 compared with group 3 and decreased in groups 1 and 2. Conclusion. Brain pMRI is a very sensitive method to detect brain involvement in patients with BD and aids the clinical diagnosis of NBD, especially in patients with negative MRI findings

The commingling effect on yarn stability and uniformity

Drexel University;Drexel University, College of Engineering;Drexel University, Materials Science and Engineering;Johnson and JohnsonFiber Society 2014 Fall Meeting and Technical Conference: Fibers for the Future -- 22 October 2014 through 24 October 2014 -- -- 121322[No abstract available

injury in a C57BL/J6 mouse model

Beta-glucans (beta g), that have many useful effects on human health, are natural polysaccharides. Our aim in this study was to determine useful effect of beta g against oxidative and neuronal damage caused by global cerebral ischemia/reperfusion (IR) in stroke imitated mice via surgical operation. A total of 40 mice divided into four equal groups randomly. The group 1 (sham operated) was kept as control. Bilateral carotid arteries of subjects in group 2 (I/R) and group 4 (I/R + beta g) were clipped for 15 min, and the mice in group 4 (I/R + beta g) were treated with beta g (50 mg/kg/day), while the mice in group 2 (I/R) were treated with only vehicle for 10 days. The mice of group 3 (beta g) were treated with beta g for 10 days without carotid occlusion. Global cerebral I/R significantly increased oxidative stress and decreased members of anti-oxidant defense system. In addition, I/R caused histopathological damage in the brain tissue. However, beta g treatment ameliorated both oxidative and histopathological effects of I/R. Our present study showed that beta g treatment significantly ameliorated oxidative and histological damage in the brain tissue caused by cerebral I/R. Therefore, beta g treatment can be used as supportive care for ischemic stroke patients.C1 [Kaya, Kursat] Adiyaman Univ, Fac Pharm, Dept Biochem, Altinsehir Mah 3005 Sok 13, TR-02040 Adiyaman, Turkey.[Ciftci, Osman] Pamukkale Univ, Fac Med, Dept Med Pharmacol, Denizli, Turkey.[Oztanir, Mustafa Namik] Inonu Univ, Fac Med, Dept Brain & Neurosurg, Malatya, Turkey.[Taslidere, Elif] Bezmialem Vakif Univ, Fac Med, Dept Histol & Embryol, Istanbul, Turkey.[Turkmen, Nese Basak] Inonu Univ, Dept Pharmaceut Toxicol, Fac Pharm, Malatya, Turkey

Investigation of the effect of carnitine on cerebral vasospasm in experimental subarachnoid hemorrhage model

Abstract The vasospasm, which develops after subarachnoid hemorrhage (SAH), is an unenlightened table in terms of etiology and results. It is usually associated with decreased perfusion, which is associated with decreased blood flow distal to the affected artery and can be demonstrated radiologically. Acetyl-L-carnitine (ALCAR) can be found in brain tissue and easily crosses the blood–brain barrier. Therefore, in this study, we aimed to investigate the therapeutic efficacy of ALCAR, which is an effective antioxidant amine, on vasospasm development after experimental SAH. In our study, 35 adults male Wistar RATs weighing between 235–250 g were used. These RATs were divided into five groups with n = 7. Group 1 Control group, Group 2 SAH + SF (carrier solution), Group 3 SAH + ALCAR 50 mg\kg intraperitoneally, Group 4 SAH + ALCAR 100 mg\kg intraperitoneally and Group 5 SAH. Subarachnoid hemorrhage was induced by giving autologous arterial blood to the cisterna magna of the animals in groups 2, 3, 4, and 5. At 0.-12.- 24.- 36.- 48.- 60. and 72. h, Group 2 was injected with SF, Group 3 with intraperitoneally ALCAR 50 mg\kg, and Group 4 with intraperitoneally ALCAR 100 mg\kg, respectively. Following perfusion and fixation, the animals were subjected to a wide craniectomy, and the brain, cerebellum, and brain stems were removed globally. Then, sections were taken from the basilar arteries of all animals and photographed at 40X magnification. Basilar artery lumen cross-sectional areas, basilar artery areas, and wall thicknesses were measured from these sections. The basilar artery lumen cross-sectional area was found to be significantly larger in the groups in which SAH was formed and ALCAR 50 mg\kg and ALCAR 100 mg\kg were given compared to the group with only SAH and SAH + SF (p = 0.0408). Basilar artery wall thickness increased in all groups except the control group (p < 0.05). In light of all these findings, it was concluded in our study that Carnitine was effective in the resolution of vasospasm in the experimental SAH model

Assessment of sertraline activity in a vasospasm model following experimental subarachnoid haemorrhage

Vasospasm following subarachnoid haemorrhage (SAH) is a process yet to be fully clarified in terms of its aetiology and results. According to one of the many theories about vasospasm developing after SAH, the process results from an increase of pro-inflammatory agents and decrease in antioxidant agents. Other hand experimental studies on rats found a significant decrease in the pro-inflammatory parameters TNF-&#945; and IL-1&#946; in the blood values obtained after the use of sertraline. In this study, the findings regarding the effectiveness of sertraline in the treatment of vasospasm developing an experimental SAH model are presented. In this study, adult males of Spraque-Dawley breed, not used in any previous study and weighing between 250350 g, were used. Rats were divided into 4 groups with the control group (n=5) and other groups (n=6 in each). Group 1 was the control, and Group 3 was the sertraline group. In Groups 2 and 4, SAH was initiated by giving rats autologous arterial blood in the cisterna magna. The tissues were examined in terms of mononuclear cell infiltration, vascular congestion, and neuron degeneration. In the experimental SAH model based on these values, it was found that the use of sertraline significantly reduced mononuclear cell infiltration, vascular congestion, and neuron degeneration. Moreover, in animal studies, it was shown that SSRIs increased neurogenesis and release of neurotrophins from the hippocampus. In our study, it was concluded that sertraline was effective in dissolving vasospasm in the experimental SAH model. However, we further believe that more experimental studies to investigate other SSRI compounds of the same family can contribute to the knowledge and understanding of this process. [Med-Science 2020; 9(4.000): 817-22

Are you also what your mother eats? Distinct proteomic portrait as a result of maternal high-fat diet in the cerebral cortex of the adult mouse

Epidemiological studies suggest an association between maternal obesity and adverse neurodevelopmental outcomes in offspring. Our aim was to compare the global proteomic portrait in the cerebral cortex between mice born to mothers on a high-fat or control diet who themselves were fed a high-fat or control diet. Male mice born to dams fed a control (C) or high-fat (H) diet 4 weeks before conception and during gestation, and lactation were assigned to either C or H diet at weaning. Mice were killed at 19 weeks and their cerebral cortices were analysed using a two-dimensional liquid chromatography-mass spectrometry methodology. In total, 6 695 proteins were identified (q<0.01), 10% of which were modulated in at least one of the groups relative to controls. In silico analysis revealed that mice clustered based on the diet of the mother and not their own diet and that maternal high-fat diet was significantly associated with response to hypoxia/oxidative stress and apoptosis in the cerebral cortex of the adult offspring. Maternal high-fat diet resulted in distinct endophenotypic changes of the adult offspring cerebral cortex independent of its current diet. The identified proteins could represent novel therapeutic targets for the prevention of neuropathological features resulting from maternal obesity