S.23.01 Animal models and new treatment strategies of anxiety disorders

2003 ◽  
Vol 13 ◽  
pp. S157
Author(s):  
M. Bourin
2019 ◽  
Vol 115 (13) ◽  
pp. 1838-1849 ◽  
Author(s):  
Christian Riehle ◽  
Johann Bauersachs

Abstract Heart disease is a major cause of death worldwide with increasing prevalence, which urges the development of new therapeutic strategies. Over the last few decades, numerous small animal models have been generated to mimic various pathomechanisms contributing to heart failure (HF). Despite some limitations, these animal models have greatly advanced our understanding of the pathogenesis of the different aetiologies of HF and paved the way to understanding the underlying mechanisms and development of successful treatments. These models utilize surgical techniques, genetic modifications, and pharmacological approaches. The present review discusses the strengths and limitations of commonly used small animal HF models, which continue to provide crucial insight and facilitate the development of new treatment strategies for patients with HF.


2003 ◽  
Vol 5 (1) ◽  
pp. 1-22 ◽  
Author(s):  
Richard L. Hurwitz ◽  
Patricia Chévez-Barrios ◽  
Milton Boniuk ◽  
Murali Chintagumpala ◽  
Mary Y. Hurwitz

Retinoblastoma (Rb) is the most common primary ocular malignancy of children and is caused by a mutation in the gene RB1. Approximately 40% of cases are associated with one or more constitutional mutations, and are therefore heritable, whereas the other 60% are sporadic. Rb is exclusively found in young children. In some cases, Rb tumours metastasise to extraocular organs including bone, lung and brain. Although there is no effective treatment for metastatic disease, non-metastatic cases can be cured by removal of the eye (enucleation). Newer treatment strategies emphasise salvaging the affected eye whenever possible. Animal models of Rb have been developed with xenograft and transgenic techniques. Each model has both strengths and weaknesses for exploring the mechanisms of disease development and progression and the efficacy of new treatment strategies.


2019 ◽  
Vol 17 (2) ◽  
pp. 139
Author(s):  
Ni Made Dwi Sandhiutami ◽  
Puspita Eka Wuyung ◽  
Wawaimuli Arozal ◽  
Melva Louisa ◽  
Deni Rahmat

Treatment for ovarian carcinoma is still far from optimal, animal models are still needed to study human epithelial ovarian cancer. Animal models of ovarian cancer are very important for understanding the pathogenesis of the disease and for testing new treatment strategies. Ovarian carcinogenesis models in mice have been modified and repaired to produce preneoplastic lesions and neoplastic ovaries that are pathogens resembling human ovarian cancer. Although spontaneous ovarian tumors in mice have been reported, some of the shortcomings of existing studies preclude their use as animal models of ovarian cancer. Because of this, many efforts have been made to develop animal models that are relevant for ovarian cancer. Experimental animal models are developed accurately to represent cellular and molecular changes associated with the initiation and development of human ovarian cancer. Accurate experimental models have significant potential in facilitating the development of better methods for early detection and treatment of ovarian cancer. Several animal models of ovarian cancer have been reported, including manipulation of various reproductive factors or exposure to carcinogens. The latest advance in ovarian cancer modeling is using genetically engineered mice.


2016 ◽  
Vol 115 (03) ◽  
pp. 501-508 ◽  
Author(s):  
Mat J. Daemen ◽  
Frank J. H. Gijsen ◽  
Kim Van der Heiden ◽  
Ayla Hoogendoorn

SummaryRupture of atherosclerotic plaques is the main cause of acute cardiovascular events. Animal models of plaque rupture are rare but essential for testing new imaging modalities to enable diagnosis of the patient at risk. Moreover, they enable the design of new treatment strategies to prevent plaque rupture. Several animal models for the study of atherosclerosis are available. Plaque rupture in these models only occurs following severe surgical or pharmaceutical intervention. In the process of plaque rupture, composition, biology and mechanics each play a role, but the latter has been disregarded in many animal studies. The biomechanical environment for atherosclerotic plaques is comprised of two parts, the pressure-induced stress distribution, mainly - but not exclusively – influenced by plaque composition, and the strength distribution throughout the plaque, largely determined by the inflammatory state. This environment differs considerably between humans and most animals, resulting in suboptimal conditions for plaque rupture. In this review we describe the role of the biomechanical environment in plaque rupture and assess this environment in animal models that present with plaque rupture.


CNS Spectrums ◽  
2001 ◽  
Vol 6 (7) ◽  
pp. 590-594 ◽  
Author(s):  
Florian Holsboer

AbstractResearch has provided considerable evidence for the hypothesis that corticotropin-releasing hormone (CRH), the key central coordinator of stress-hormone homeostasis, also plays a role in the development and course of depression and anxiety disorders. Studies using animal models of anxiety, as well as mouse mutants, in which the gene coding for the CRH type 1 receptor (CRHR1) was genetically deleted supported the notion that enhanced CRH/CRHR1 signaling underlies depression and anxiety disorders. Therefore, a number of small nonpeptide molecules that antagonize CRHR1 have been developed. In animal models, these molecules had anxiolytic and other stress-alleviating effects. An initial clinical study showed that CRHR1 antagonism has beneficial effects on depression and anxiety symptoms at doses unharmful to neuroendocrine stress responsivity.


CNS Spectrums ◽  
2002 ◽  
Vol 9 (S14) ◽  
pp. 25-32
Author(s):  
Waguih William IsHak ◽  
Mark H. Rapaport ◽  
Jennifer G. Gotto

ABSTRACTManagement strategies for treatment-resistant depression and anxiety disorders have evolved over the last decade. Our understanding of the factors that impair recovery from an episode of major depression has increased, leading to the development of more precise diagnostic methodology that highlight the presence of comorbid conditions. New medications, creative uses of existing medications, increased empirical data about augmentation strategies, and the development of innovative nonpharmacologic interventions are responsible for a marked expansion in treatment options. Traditionally, augmentations with lithium, thyroid hormones, or electroconvulsive therapy have demonstrated effectiveness in some patients with treatment-resistant mood disorders. Among the promising treatments in both depression and anxiety is augmentation using low-dose antipsychotics medications, combining antidepressants of different classes, and the addition of psychotherapy. Nonpharmacologic interventions that may have potential include transcranial magnetic stimulation, deep-brain stimulation, and vagus-nerve stimulation. This article provides a brief review of the available data summarizing existing and new treatment strategies in depression and anxiety disorders.


Author(s):  
Amrita Sarkar ◽  
Khadija Rafiq

Cardiovascular Disease (CVD) is a class of diseases that involve disorders of heart and blood vessels, including hypertension, coronary heart disease, cerebrovascular disease, peripheral vascular disease, which finally lead to Heart Failure (HF). There are several treatments available all over the world, but still, CVD and heart failure became the number one problem causing death every year worldwide. Both experimental and clinical studies have shown a role for inflammation in the pathogenesis of heart failure. This seems related to an imbalance between pro-inflammatory and anti-inflammatory cytokines. Cardiac inflammation is a major pathophysiological mechanism operating in the failing heart, regardless of HF aetiology. Disturbances of the cellular and humoral immune system are frequently observed in heart failure. This review describes how B-cells play a specific role in the heart failure states. There is an urgent need to identify novel therapeutic targets and develop advanced therapeutic strategies to combat the syndrome of HF. Understanding and describing the elements of the humoral immunity function are essential and may suggest potential new treatment strategies.


Antioxidants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 265
Author(s):  
Maria-Luisa Pérez-Lozano ◽  
Annabelle Cesaro ◽  
Marija Mazor ◽  
Eric Esteve ◽  
Sabine Berteina-Raboin ◽  
...  

Osteoarthritis (OA) is a complex degenerative disease in which joint homeostasis is disrupted, leading to synovial inflammation, cartilage degradation, subchondral bone remodeling, and resulting in pain and joint disability. Yet, the development of new treatment strategies to restore the equilibrium of the osteoarthritic joint remains a challenge. Numerous studies have revealed that dietary components and/or natural products have anti-inflammatory, antioxidant, anti-bone-resorption, and anabolic potential and have received much attention toward the development of new therapeutic strategies for OA treatment. In the present review, we provide an overview of current and emerging natural-product-based research treatments for OA management by drawing attention to experimental, pre-clinical, and clinical models. Herein, we review current and emerging natural-product-based research treatments for OA management.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Chao-Hung Kuo ◽  
Fu-Chen Kuo ◽  
Huang-Ming Hu ◽  
Chung-Jung Liu ◽  
Sophie S. W. Wang ◽  
...  

This paper reviews the literature about first-line therapies forH. pyloriinfection in recent years. First-line therapies are facing a challenge because of increasing treatment failure due to elevated antibiotics resistance. Several new treatment strategies that recently emerged to overcome antibiotic resistance have been surveyed. Alternative first-line therapies include bismuth-containing quadruple therapy, sequential therapy, concomitant therapy, and hybrid therapy. Levofloxacin-based therapy shows impressive efficacy but might be employed as rescue treatment due to rapidly raising resistance. Rifabutin-based therapy is also regarded as a rescue therapy. Several factors including antibiotics resistance, patient compliance, and CYP 2C19 genotypes could influence the outcome. Clinicians should use antibiotics according to local reports. It is recommended that triple therapy should not be used in areas with high clarithromycin resistance or dual clarithromycin and metronidazole resistance.


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