pathways activated by the ep receptors

Báo cáo khoa học: Post-ischemic brain damage: the endocannabinoid system in the mechanisms of neuronal death ppt

Báo cáo khoa học: Post-ischemic brain damage: the endocannabinoid system in the mechanisms of neuronal death ppt

... transporters and the cannabinoid (CB) receptors, which include CB1 and CB2 receptors as well as non-CB1 ⁄ CB2 receptors [e.g transient receptor potential vanilloid (TRPV1) channels and possibly others] ... after the synthesis AEA and 2-AG are released into the synaptic cleft, from which they diffuse retrogradely to activate presynaptic cannabinoid (CB1) receptors Depending on the brain region or the ... vesicles and therefore they are synthesized on demand and travel, in a retrograde direction, across the postsynaptic membrane to the presynaptic membrane, where they activate presynaptic CB1 receptors...

Ngày tải lên: 07/03/2014, 03:20

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Báo cáo khóa học: Collectins Players of the innate immune system docx

Báo cáo khóa học: Collectins Players of the innate immune system docx

... immune cell surface receptors In addition, the electrostatic potential pattern on the surface of the protein might be altered by the additional calcium ions, thereby influencing the affinity for negatively ... inactivation of the organism by activation of the complement cascade [93,94] On the other hand, by binding to C1q and thereby preventing association of C1q with C1r and C1s, SP-A can prevent the formation ... enhanced uptake by phagocytic cells, and thereby, depending on whether the phagocytes are able to kill the virus after stimulated uptake, either enhance or diminish infection of the whole organism...

Ngày tải lên: 07/03/2014, 15:20

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Paradoxical roles of the immune system during cancer development docx

Paradoxical roles of the immune system during cancer development docx

... panels; the scale bar represents 50µm) The dashed lines indicate the position of the epidermal basement membrane d, dermis; e, epidermis Cancer development and innate immune cells How then chronically ... found in individuals infected by HPV16 in the cervical epithelium24 Like epithelial carcinogenesis in humans, pre-malignant skin and cervix in HPV16 mice is characterized by chronic infiltration of ... together alter crucial intracellular signalling pathways3 6 In both human and mouse models of cancer development, although some MMPs are produced by epithelial cells, the major source of MMPs is activated...

Ngày tải lên: 15/03/2014, 01:20

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Cancer of the Brain and Other Central Nervous System doc

Cancer of the Brain and Other Central Nervous System doc

... patients with other CNS cancer, the spine was the most common primary site (53.9% of total), followed by the brain (41.3% of total) and other (4.8% of total) Other CNS cancers in the brain (malignant ... greatly by histology The categories of histology of tumor used in this analysis, for other CNS cancer patients only, were: glioma, ependymoma, astrocytoma, meningioma and other (other, neuroepitheliomatous ... to note that the majority of the other CNS patients were in the localized SEER stage category Relative survival rates for other CNS cancer are shown by stage (Table 25.9) and stage by race/sex...

Ngày tải lên: 22/03/2014, 17:20

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Báo cáo khoa học: Modulation of the endocannabinoid system by focal brain ischemia in the rat is involved in neuroprotection afforded by 17b-estradiol pdf

Báo cáo khoa học: Modulation of the endocannabinoid system by focal brain ischemia in the rat is involved in neuroprotection afforded by 17b-estradiol pdf

... and type cannabinoid (CB1 and CB2) receptors, non-CB1 ⁄ non-CB2 receptors, and noncannabinoid receptors, including the type vanilloid receptor [transient receptor potential vanilloid-1 (TRPV1)], ... significantly blocked by estrogen, possibly through an ER-dependent mechanism In conclusion, this is the first report documenting the modulation of the endocannabinoid system by estrogen in the brain under ... into the internal carotid artery, approximately 18 mm from the carotid bifurcation, until mild resistance was felt, thereby indicating occlusion of the origin of the MCA in the Willis circle The...

Ngày tải lên: 23/03/2014, 07:20

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Báo cáo Y học: A new siglec family member, siglec-10, is expressed in cells of the immune system and has signaling properties similar to CD33 docx

Báo cáo Y học: A new siglec family member, siglec-10, is expressed in cells of the immune system and has signaling properties similar to CD33 docx

... digesting the fragment with HindIII and Bgl II and the plasmid with HindIII and Bam HI The fragment was ligated into the plasmid and the integrity of the insertion was validated by digesting the plasmid ... PI, then gel purified (< 820 bp) The insert was then ligated into the pSPORT vector and the resulting full-length siglec-10 clone was designated 995-2 and the sequence was verified against the other ... contributing to the phosphorylation of the wild-type siglec tail by Lck and Jak3 kinases By comparison, the mutation of the tyrosine at position 641 did not significantly affect the degree of phosphorylation...

Ngày tải lên: 24/03/2014, 04:21

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brain facts a primer on the brain and nervous system - the society for neuroscience

brain facts a primer on the brain and nervous system - the society for neuroscience

... example, when norepinephrine binds to its receptors on the surface of the neuron, the activated receptor binds G-proteins on the inside of the membrane The activated Gprotein causes the enzyme adenylyl ... SYSTEM Norepinephrine is released by nerves, and epinephrine is secreted by the adrenal glands Eyes By activating receptors in blood vessels and other structures, Thymus and Immune System these substances ... of the visual world on the retina, the sheet of photoreceptors, which process vision, and neurons lining the back of the eye As in a camera, the image on the retina is reversed: objects to the...

Ngày tải lên: 08/04/2014, 13:13

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Design of a near infrared spectrophotometry brain imaging system

Design of a near infrared spectrophotometry brain imaging system

... that the 32Khz crystal is fast enough to supply the clock at which to sample the data The speed of the UART is what is affected by the microcontroller speed It was determined that the speed of the ... to compile the software, specifically mspgcc-4.4.3, and then programed to the device using the TinyOS software 4.2 The Sensor The sensor was first designed by selecting the components The main problem ... they were to be mounted on the opposite side To create the toner mask, Cadsoft EAGLE was used The schematic was laid out in EAGLE, then the PCB designed The idea was to minimize the size, keep...

Ngày tải lên: 16/04/2014, 01:56

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scientific american   -  1993 09  -  special issue  -  life, death, and the immune system

scientific american - 1993 09 - special issue - life, death, and the immune system

... endothelial venule, named for the blocky surface of its walls) Only lymphocytes can pass through the HEVs; they express homing receptors that match counter receptors on the HEV walls These receptors ... peptide to the surface of the cell There the peptide can be recognized by T cells that have the CD4 protein on their surface Unlike CD8 T cells, CD4 T cells not directly kill the cell Rather they activate ... which are soluble forms of their receptors By binding to antigens they find, the antibodies can neutralize them or precipitate their destruction by complement enzymes or by scavenging cells Some...

Ngày tải lên: 12/05/2014, 14:50

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báo cáo hóa học:" Angiostatin anti-angiogenesis requires IL-12: The innate immune system as a key target" docx

báo cáo hóa học:" Angiostatin anti-angiogenesis requires IL-12: The innate immune system as a key target" docx

... receptor for IL-23, thus only the IL-12Rβ2 subunit is unique to the IL-12 system By analogy, IL-12 is a heterodimer formed by the p35 and p40 subunits; while the related IL-23 is formed by the ... inhibits ASTby CCL2angiogenesis induced by the chemokine IL-8 but AST inhibits angiogenesis induced by the chemokine IL-8 but not by CCL2 AST effectively inhibited angiogenesis induced by IL-8, ... for the purified human material and none for the recombinant peptide Matrigel angiogenesis assay The assay was performed as previously described [12,26] Angiostatin or peptides were added to the...

Ngày tải lên: 18/06/2014, 15:20

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Báo cáo sinh học: " Modulation of macrophage functions by sheeppox virus provides clues to understand interaction of the virus with host immune system" docx

Báo cáo sinh học: " Modulation of macrophage functions by sheeppox virus provides clues to understand interaction of the virus with host immune system" docx

... immune response by SPPV is not dependent on virus infectivity Later and systemically, the virus protects the host from any fatal consequences of the suppression of the immune system by compensatory ... impair the immunological response against live viruses Such nonstructural proteins includes soluble receptors for IFNα, β, TNFα, SOD-like protein, etc [16,26,35] These facts together with the recurrence ... IL-10 reduces the production of IL-2, IFN and TNF by murine Th1 cells [14] as well as the IL-12 production by APC [18] IL-10 may also, intervene at the level of antigen processing within the cell...

Ngày tải lên: 18/06/2014, 22:20

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Báo cáo hóa học: " Effectiveness of a Wii balance board-based system (eBaViR) for balance rehabilitation: a pilot randomized clinical trial in patients with acquired brain injury" ppt

Báo cáo hóa học: " Effectiveness of a Wii balance board-based system (eBaViR) for balance rehabilitation: a pilot randomized clinical trial in patients with acquired brain injury" ppt

... high step and then back down to the floor within 15 seconds The action is repeated as fast as possible during the test for the paretic and non-paretic leg The step is placed cm in front of the individual’s ... rehabilitation [24,25] The system calibrates the maximum excursion of the patients and adapts the range of motion of the exercises to fit their impairment In addition, the therapist can configure the difficulty ... taking a step) On the other hand, balance in dynamic conditions was assessed by the Timed Stair Test (TST) [31], the Stepping Test (ST) [32], the 1minute Walking Test (1MWT) [33], the 10-meter...

Ngày tải lên: 19/06/2014, 08:20

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Báo cáo hóa học: " Brain-Computer Interface Controlled Functional Electrical Stimulation System for Ankle Movement" doc

Báo cáo hóa học: " Brain-Computer Interface Controlled Functional Electrical Stimulation System for Ankle Movement" doc

... approved FES device by means of the MCU The FES device then stimulates the TA muscle of the foot, thereby causing contralateral dorsifiexion The inset shows the MCU connected to the neuromuscular ... operation The BCI-FES system is a binary state machine with idling and dorsifiexion states represented by circles The state transitions are represented by the arrows, with transitions triggered by the ... until the real-time EEG data were decoded as “idle,” upon which the BCI software sent a series of instructions to the MCU to open the relay, thereby opening the stimulation circuit and stopping the...

Ngày tải lên: 19/06/2014, 08:20

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báo cáo hóa học: " Application of a hybrid wavelet feature selection method in the design of a self-paced brain interface system" pptx

báo cáo hóa học: " Application of a hybrid wavelet feature selection method in the design of a self-paced brain interface system" pptx

... sets (there were at least 20 times more NC epochs than IC epochs), the size of the NC training feature set was reduced to be the same as the size of the training IC feature sets This was done by ... test sets, the average FP rate on the TP test sets, the average ratio and the average number of FP features selected by the hybrid feature selection process The numbers in parentheses are the standard ... integers) The contracted versions of the wavelet function will match the high-frequency components of the original signal and the dilated versions will match the low-frequency oscillations Then by correlating...

Ngày tải lên: 19/06/2014, 10:20

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báo cáo hóa học: " Expression of innate immune complement regulators on brain epithelial cells during human bacterial meningitis" docx

báo cáo hóa học: " Expression of innate immune complement regulators on brain epithelial cells during human bacterial meningitis" docx

... conditions of the brain [9] and presumably as a consequence of plasma transudation or intrathecal synthesis by infiltrating leukocytes and resident activated epithelial cells [10,11] The epithelium ... indicated that the epithelial cells remained largely unaffected This study was undertaken to decipher some of the intrinsic pathways expressed by reactive brain epithelial cells to control bystander ... on ependymal cells in disease conditions These data argue for a regional specificity and independent regulation of Cregs between epithelial cells of the choroid plexus and the ependyma of the...

Ngày tải lên: 19/06/2014, 22:20

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báo cáo hóa học: " Increased circulating leukocyte numbers and altered macrophage phenotype correlate with the altered immune response to brain injury in metallothionein (MT) -I/II null mutant mice" doc

báo cáo hóa học: " Increased circulating leukocyte numbers and altered macrophage phenotype correlate with the altered immune response to brain injury in metallothionein (MT) -I/II null mutant mice" doc

... absence of the neuroprotective effects of MT-I/II in the CNS or the absence of the modulatory effects that MT-I/II has on the immune system The infiltration of neutrophils into CNS injuries is the most ... sagittal incision along the skull was used to expose the cranium and the steel rod was then applied directly to the skull for seconds The stereotaxic coordinates for the injury site were mm anterior ... of the injury zone All cell counts were conducted blinded to the strain of the mouse Flow cytometry Blood was obtained by cardiac puncture and the leukocytes were separated from erythrocytes by...

Ngày tải lên: 19/06/2014, 22:20

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báo cáo hóa học:" Modulation of macrophage functions by sheeppox virus provides clues to understand interaction of the virus with host immune system" doc

báo cáo hóa học:" Modulation of macrophage functions by sheeppox virus provides clues to understand interaction of the virus with host immune system" doc

... immune response by SPPV is not dependent on virus infectivity Later and systemically, the virus protects the host from any fatal consequences of the suppression of the immune system by compensatory ... impair the immunological response against live viruses Such nonstructural proteins includes soluble receptors for IFNα, β, TNFα, SOD-like protein, etc [16,26,35] These facts together with the recurrence ... IL-10 reduces the production of IL-2, IFN and TNF by murine Th1 cells [14] as well as the IL-12 production by APC [18] IL-10 may also, intervene at the level of antigen processing within the cell...

Ngày tải lên: 20/06/2014, 04:20

7 609 0
Báo cáo sinh học: "Parasite immunomodulation and polymorphisms of the immune system" ppsx

Báo cáo sinh học: "Parasite immunomodulation and polymorphisms of the immune system" ppsx

... CLR, C-type lectin receptors, which recognize conserved glycans of pathogens; NLR, NOD-like receptors, intracellular receptors that recognize pathogen products; TLR, Toll-like receptors, which recognize ... which bind peptide fragments of pathogen proteins and display them for recognition by T cells; TCR, T cell receptor, the highly variable receptor through which T cells recognize their targets ... be exceptionally susceptible to either infection or pathology, and a deeper understanding of the intimate co-evolution of pathogens and the immune system 10 11 12 13 14 Acknowledgements The author’s...

Ngày tải lên: 06/08/2014, 19:20

4 386 1
Báo cáo sinh học: "Beyond toxicity: aryl hydrocarbon receptor-mediated functions in the immune system" docx

Báo cáo sinh học: "Beyond toxicity: aryl hydrocarbon receptor-mediated functions in the immune system" docx

... have not yet been activated by antigen - circulate in the blood and lymph until they are activated, usually by dendritic cells, which are specialized for that function They then proliferate and ... subsets, distinguished by the different cytokines they produce (indicated under each CD4 T cell type): the cytokines act on other immune cells, activating them in turn The four known subsets ... reality, the signal is caused by high expression in the small subset of TH17 cells Moreover, although expression of AhR in TREG cells is detectable when these cells are assayed on their own [10], by...

Ngày tải lên: 06/08/2014, 19:21

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