scholarly journals Novel Insights Into the Neurobiology of the Antidepressant Response From Ketamine Research: A Mini Review

2021 ◽  
Vol 15 ◽  
Author(s):  
Michael Colla ◽  
Hanne Scheerer ◽  
Steffi Weidt ◽  
Erich Seifritz ◽  
Golo Kronenberg

The serendipitous discovery of ketamine’s antidepressant effects represents one of the major landmarks in neuropsychopharmacological research of the last 50 years. Ketamine provides an exciting challenge to traditional concepts of antidepressant drug therapy, producing rapid antidepressant effects seemingly without targeting monoaminergic pathways in the conventional way. In consequence, the advent of ketamine has spawned a plethora of neurobiological research into its putative mechanisms. Here, we provide a brief overview of current theories of antidepressant drug action including monoaminergic signaling, disinhibition of glutamatergic neurotransmission, neurotrophic and neuroplastic effects, and how these might relate to ketamine. Given that research into ketamine has not yet yielded new therapies beyond ketamine itself, current knowledge gaps and limitations of available studies are also discussed.

2015 ◽  
Vol 13 (10) ◽  
pp. 1722-1739 ◽  
Author(s):  
Niki Antypa ◽  
Raffaella Calati ◽  
Alessandro Serretti

2021 ◽  
Vol 8 ◽  
pp. 204993612110320
Author(s):  
Robert Rosolanka ◽  
Andres F. Henao-Martinez ◽  
Larissa Pisney ◽  
Carlos Franco-Paredes ◽  
Martin Krsak

Deeper understanding of the spread, morbidity, fatality, and development of immune response associated with coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2, is necessary in order to establish an appropriate epidemiological and clinical response. Exposure control represents a key part of the combat against COVID-19, as the effectiveness of current therapeutic options remains partial. Since the preventive measures have not been sufficiently able to slow down this pandemic, in this article we explore some of the pertinent knowledge gaps, while overall looking to effective vaccination strategies as a way out. Early on, such strategies may need to rely on counting the convalescents as protected in order to speed up the immunization of the whole population.


2021 ◽  
Vol 42 (1_suppl) ◽  
pp. S39-S58
Author(s):  
Kesso Gabrielle van Zutphen ◽  
Klaus Kraemer ◽  
Alida Melse-Boonstra

Background: Anemia is a public health problem among adolescents in Indonesia. Strategies to prevent or treat anemia should be tailored to local conditions, taking into account its specific etiology and prevalence in a given setting and population group. Objective: This review aims to (1) identify and synthesize the current knowledge on the etiology of anemia among adolescents in Indonesia, (2) reveal knowledge gaps in this area, and (3) suggest directions for future research and programmatic work. Methods: We systematically searched PubMed, Web of Science, Scopus, Medline, and WorldCat databases for peer-reviewed journal articles to identify which etiological factors were related to anemia among Indonesian adolescents. Research papers were reviewed and included in the review according to inclusion criteria. Results: Of 13 studies, 8 showed that anemia was associated with iron deficiency; 4 are suggestive of vitamin A deficiency; and 2 of folic acid deficiency. Five studies underscore different etiological determinants for anemia, such as malaria, protein and energy malnutrition, vitamin B2 deficiency, calcium, and vitamin C deficiency. Based on these findings, we developed a framework on knowledge gaps on the etiology of anemia among adolescents in Indonesia, divided in 3 levels of knowledge: (1) significant knowledge gaps, (2) knowledge gaps, and (3) established knowledge. Conclusions: The knowledge gaps around the etiology of anemia among Indonesian adolescents are significant. Our framework emphasizes the need for further research across all etiological factors, namely inadequate nutritional intake and absorption, genetic hemoglobin disorders, infection and inflammation, and menstrual disorders.


2010 ◽  
Vol 162 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Subroto Ghose ◽  
Michelle K Winter ◽  
Kenneth E McCarson ◽  
Carol A Tamminga ◽  
Salvatore J Enna

2021 ◽  
pp. 108886832098581
Author(s):  
Franki Y. H. Kung ◽  
Abigail A. Scholer

Historically, the study of multiple goals has focused on the dynamics between two goals as the prototypical example of multiple goals. This focus on dyadic relations means that many issues central to the psychology of more than two goals are still unexplored. We argue that a deeper understanding of multiple-goal issues involves moving beyond two goals. Doing so not only reveals new insights about goal relations (e.g., how one dyadic relation affects another) but also introduces goal structure (how goals and goal relations are positioned relative to each other) as a variable in its own right worthy of study. In our review, we discuss current knowledge gaps, review methodologies both in terms of existing techniques and novel techniques we propose, and highlight new directions from moving beyond two goals—what new questions emerge and what dynamics, including intersectional issues (e.g., between goal properties and goal structure), become possible to explore.


1993 ◽  
Vol 5 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Ingmar Skoog ◽  
Lars Nilsson ◽  
Sten Landahl ◽  
Bertil Steen

The prevalence of mental disorders was studied in a representative sample of 85-year-old living in Gothenburg, Sweden, (n=494). All subjects were examined by a psychiatrist, whose diagnoses were defined according to the DSM-III-R criteria. In the sample, the prevalence of dementia was 29.8%, and of any other mental disorder was 24.3%. Psychotic disorders were present in 4.7%, depressive disorders in 12.6%, and anxiety disorders in 10.5%. Anxiety disorders were more common in women than in men. Of all subjects, 42.5% used a psychotropic drug (men 30.1%, women 47.6%, p<0.001), 34.2% used anxiolytic-sedatives, 14.0% used antidepressants, and 5.7% used neuroleptics. Women used significantly more anxiolytic-sedatives and antidepressants than did men. Of those with no mental disorders, 29.1% used a psychotropic drug. Although the prescription of psychotropic drugs was high, only one fifth of those with depressive disorders received antidepressant drug therapy and one tenth of those with psychotic disorders received neuroleptics.


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