Humoral immunity appears to be based on immunological memory provided by memory plasma cells, which secrete protective antibodies, and memory B cells, which react to antigen challenge by differentiating into plasma cells. How these differentiation pathways relate to each other, how cells are selected into these memory populations, and how these populations are maintained remains enigmatic.

Alzheimer is age-related, progressive brain degeneration disease. It destroys memory slowly. The number of people living with AD is increasing as fast as the count of aged population and extension of bad nutrition habits. The main cause of AD is not clearly known, but prior studies noted the importance of inflammation in Tau hyperphosphorylation and failure of microglia to clear AB peptide accu...

   Two omega-3 fatty acids including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are essential for the physiologic function of neuronal cell membrane. Normal function of neuronal cell membrane requires appropriate composition of fatty in its structure. Present study was designed to compare the effect of short-term and long-term pretreatment with omega-3 fatty acids on scopolamine...

Objective(s): The neurodegeneration and loss of memory function are common consequences of aging. Medicinal plants have potent protective effects against chronic neurodegenerative diseases. The aim of this study was to investigate the beneficial effects and molecular mechanisms of crocin on brain function in D-galactose (D-gal)-induced aging model in rats. Materials and Methods: Male Wistar rat...

results in the first three years, the team managed the care of 812 admissions. mean age wasn 44.3 years (sd = 24.8) and mean length of hospital stay was 6.1 days (sd = 10.9). ofn these individuals, 674 attended for 6 month follow-up with 52.2% having a good outcomen on extended glasgow outcome score. patients and their relatives' feedbacks weren excellent with an average score of 4.7/5 on overa...

Glucocorticoids can acutely affect memory processes, with both facilitating and impairing effects having been described. Recent work has revealed that glucocorticoids may affect learning and memory processes by interacting with glutamatergic mechanisms. In this opinion article I describe different glutamatergic pathways that glucocorticoids can affect to modulate memory processes. Furthermore, ...

We tested whether visual stimulus material that is assumed to be processed in different cortical networks during perception (i.e., faces and spatial positions) is also topographically dissociable during long-term memory recall. With an extensive overlearning procedure, 12 participants learned paired associates of words and faces and words and spatial positions. Each word was combined with eithe...

To adapt to an ever-changing environment, animals consolidate some, but not all, learning experiences to long-term memory. In mammals, long-term memory consolidation often involves neural pathway reactivation hours after memory acquisition. It is not known whether this delayed-reactivation schema is common across the animal kingdom or how information is stored during the delay period. Here, we ...

long-term potentiation (ltp) is a reflection of synaptic plasticity that induced by specific patterns of synaptic activity and has an important role in learning and memory. the first clue of the potential role of glutamate receptors in ltp was in 1991 with the observation that the mglur agonists 1-amino-1, 3-cyclopentanedicarboxylic acid (acpd), increased ltp. studies have shown that acpd induc...

the aim of the study was to find whether there is an association between subjective memory complaint and memory impairment and probable underlying psychological conditions. a total of 90 patients with subjective memory complaint enrolled in this study. short history and demographic information were obtained and then the patients underwent memory and mental health assessments, using wechsler mem...