Major depressive disorder (MDD) is a prevalent, chronic, and recurring mental disorder. This disorder is a leading source of disability worldwide, and is associated with excess mortality rates. Currently approved antidepressants primarily enhance, or otherwise modulate monoaminergic neurotransmission, without curing the disease. Evidence indicates that only one third of patients with MDD achieve remission after treatment with a first-line antidepressant agent. Research in the past two decades has provided valuable insights into the pathophysiological understanding of MDD. However, there is an acknowledged ‘translational gap’ in the field, and few genuinely novel antidepressants have been approved for the treatment of MDD. The Search for Anti Depressants provides readers an in-depth picture of the main pathophysiological mechanisms responsible for the development of MDD in patients. Chapters in the volume focus on possible strategies to spur the discovery of novel antidepressants. This book is an indispensable reference for mental health care providers, students at both under-graduate and graduate levels, and neuroscientists interested in the neurobiology of MDD and recent advances towards the discovery of next generation antidepressants.

Animal models of diseases play a pivotal role in drug discovery and development, not only for proof of the concept studies of efficacy, PK/PD relationship but also for drug safety assessment. Since considerable differences in variables exist between animal models and human models (such as genetics, physiology, anatomy, gene expression, heterogeneity of disease conditions, etc.), not all the preclinical models are able to represent the pathophysiological conditions in human diseases. Therefore, partly due to the lack of congruency between animal and human disease models, several proposed therapeutic agents in the past decades have been demonstrated to be effective in preclinical models but failed in clinical studies. This e-book focuses on animal models of diseases from a translational perspective and highlights the key advantages and limitations of each model described to facilitate drug discovery and development. A unique feature of the volume is that it contains a selection of details disease models in various therapeutic niches with significant unmet medical needs, including inflammation, neurological diseases, cardiovascular and metabolic diseases, and oncology. This e-book is, therefore, of considerable value to researchers and clinicians involved in drug discovery and development as well as pathology.