Exercise assessment of transgenic models of human cardiovascular disease

2003 ◽  
Vol 13 (3) ◽  
pp. 217-226 ◽  
Author(s):  
Daniel Bernstein
Keyword(s):  
Cardiovascular Disease ◽  
Cardiovascular Response ◽  
Strain Differences ◽  
Multiple Organ ◽  
Murine Models ◽  
Transgenic Models ◽  
Wild Type ◽  
Metabolic Substrates ◽  
Organ Systems ◽  
Response To Exercise

Exercise provides one of the most severe, yet physiological, stresses to the intact cardiovascular system and is a major determinant of the utilization of metabolic substrates. The adaptations to exercise are the result of a coordinated response of multiple organ systems, including cardiovascular, pulmonary, endocrine-metabolic, immunologic, and skeletal muscle. With the proliferation of genetically altered murine models of cardiovascular disease, the importance of developing methods of accurate physiological phenotyping is critical. There are numerous examples of transgenic models in which the baseline cardiovascular phenotype is unchanged or minimally changed from the wild type, only to become manifest during the stress of exercise testing. In this review, we cover the basics of the murine cardiovascular response to exercise and the importance of attending to strain differences, compare different exercise methodologies (constant workload treadmill, incremental workload treadmill, swimming) and hemodynamic monitoring systems, and examine the murine response to exercise conditioning. Several examples where exercise studies have contributed to the elucidation of cardiovascular phenotypes are reviewed: the β-adrenergic receptor knockouts, phospholamban knockout, dystrophin knockout ( mdx), and the mutant α-myosin heavy chain (R403Q) transgenic.

scholarly journals Autonomic and inflammatory consequences of posttraumatic stress disorder and the link to cardiovascular disease

2015 ◽  
Vol 309 (4) ◽  
pp. R315-R321 ◽  
Author(s):  
Chevelle Brudey ◽  
Jeanie Park ◽  
Jan Wiaderkiewicz ◽  
Ihori Kobayashi ◽  
Thomas A. Mellman ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Posttraumatic Stress Disorder ◽  
Posttraumatic Stress ◽  
Autonomic Dysfunction ◽  
Stress Disorder ◽  
Renin Angiotensin System ◽  
Multiple Organ ◽  
Angiotensin System ◽  
Renin Angiotensin ◽  
Organ Systems

Stress- and anxiety-related disorders are on the rise in both military and general populations. Over the next decade, it is predicted that treatment of these conditions, in particular, posttraumatic stress disorder (PTSD), along with its associated long-term comorbidities, will challenge the health care system. Multiple organ systems are adversely affected by PTSD, and PTSD is linked to cancer, arthritis, digestive disease, and cardiovascular disease. Evidence for a strong link between PTSD and cardiovascular disease is compelling, and this review describes current clinical data linking PTSD to cardiovascular disease, via inflammation, autonomic dysfunction, and the renin-angiotensin system. Recent clinical and preclinical evidence regarding the role of the renin-angiotensin system in the extinction of fear memory and relevance in PTSD-related immune and autonomic dysfunction is also addressed.

scholarly journals Visceral adiposopathy: a vascular perspective

2015 ◽  
Vol 21 (2) ◽  
Author(s):  
Melissa G. Farb ◽  
Noyan Gokce
Keyword(s):  
Cardiovascular Disease ◽  
Adipose Tissue ◽  
Multiple Organ ◽  
Vascular Endothelial ◽  
Metabolic Dysfunction ◽  
Central Adiposity ◽  
Organ Systems ◽  
Tissue Characteristics ◽  
Care Problems ◽  
Visceral Adipose

AbstractObesity has emerged as one of the most critical health care problems globally that is associated with the development of insulin resistance, type 2 diabetes mellitus, metabolic dysfunction and cardiovascular disease. Central adiposity with intra-abdominal deposition of visceral fat, in particular, has been closely linked to cardiometabolic consequences of obesity. Increasing epidemiological, clinical and experimental data suggest that both adipose tissue quantity and perturbations in its quality termed “adiposopathy” contribute to mechanisms of cardiometabolic disease. The current review discusses regional differences in adipose tissue characteristics and highlights profound abnormalities in vascular endothelial function and angiogenesis that are manifest within the visceral adipose tissue milieu of obese individuals. Clinical data demonstrate up-regulation of pro-inflammatory and pro-atherosclerotic mediators in dysfunctional adipose tissue that may support pathological vascular changes not only locally in fat but also in multiple organ systems, including coronary and peripheral circulations, potentially contributing to mechanisms of obesity-related cardiovascular disease.

The Systemic Effects of Endometriosis

2017 ◽  
Vol 35 (03) ◽  
pp. 263-270 ◽  
Author(s):  
Myles Alderman ◽  
Nicole Yoder ◽  
Hugh Taylor
Keyword(s):  
Cardiovascular Disease ◽  
Body Weight ◽  
Multiple Organ ◽  
Review Literature ◽  
Micro Rna ◽  
Systemic Effects ◽  
Stem Cell Migration ◽  
Treatment And Prevention ◽  
Organ Systems ◽  
Psychiatric Conditions

AbstractEndometriosis is a condition defined by the presence of endometrial glands and stroma in ectopic locations. While the most commonly seen symptoms of the disease are pelvic pain, dysmenorrhea, and infertility, endometriosis has also systemic effects in multiple organ systems. Here, we review literature describing closely associated comorbidities including cardiovascular disease, cancers, autoimmune disease, psychiatric conditions, and metabolism/body weight. We examine the pathophysiology and hypothesized mechanism by which endometriosis may lead to these systemic effects; mechanisms include cytokine and micro-RNA production as well as stem cell migration and dissemination. The broad systemic effects of endometriosis as well as correlated comorbidities are often overlooked in the treatment of patients with endometriosis. Increased awareness may lead to more effective treatment and prevention.

scholarly journals The Biologic Syndrome of Frailty in Heart Failure

2014 ◽  
Vol 8s1 ◽  
pp. CMC.S15720 ◽  
Author(s):  
Rita Jermyn ◽  
Snehal Patel
Keyword(s):  
Heart Failure ◽  
Cardiovascular Disease ◽  
Multiple Organ ◽  
Adverse Outcomes ◽  
Risk Scores ◽  
Subjective Symptoms ◽  
Organ Systems ◽  
End Stage Heart Failure ◽  
End Stage ◽  
Current Risk

As we continue to care for an older and sicker end-stage heart failure population, it has become challenging to evaluate patients based on current risk scores that mainly focus on subjective symptoms and patient disability. For generations, geriatricians have sought to identify the body's underlying vulnerabilities that characterize frailty. More recently, cardiologists have begun to recognize this entity in their own practice. Several studies have suggested rates of frailty as high as 50% in patients with cardiovascular disease. However, despite recognizing frailty, it remains difficult to define. Like heart failure, frailty is a biologic syndrome that affects multiple organ systems. Measures of frailty are shown to strongly correlate with adverse outcomes in the health care system.

The Diabetes Index and Physical Activity Practice: A Literature Review

2021 ◽  
Author(s):  
Cristianne Confessor Castilho Lopes
Keyword(s):  
Physical Activity ◽  
Diabetes Mellitus ◽  
Metabolic Disease ◽  
Selection Process ◽  
Cardiovascular Response ◽  
Multiple Organ ◽  
Moderate Intensity ◽  
Human Beings ◽  
Organ Systems

Diabetes Mellitus is a metabolic disease caused by an excess of glucose in the blood (hyperglycemia), due to the inability of insulin to perform its functions. It is, innumerable times, related to obesity and sedentary lifestyle. Diabetes is a complex metabolic disease that can have devastating effects on multiple organ systems. With this, the objective of the present study was to carry out a systematic review about the effectiveness of the practice of physical activity in the control of glycemia in individuals with Diabetes Mellitus. For this review, searches were performed in the following databases: PubMed, Scielo, LILACS and MEDLINE. The following descriptors were used in Portuguese and Spanish: diabetes mellitus, exercise, type 1 diabetes mellitus and type 2 diabetes mellitus. A total of 252 articles were found with the descriptors mentioned, of which, after the selection process, 13 articles remained for full reading, of which 7 met all the inclusion criteria. Data collection was restricted to clinical research carried out with human beings of both genders in the last 5 years (2015 to 2020). The literature points out as the main form of managing diabetes mellitus, aerobic physical exercise of moderate intensity, which causes positive changes in glycemic control and cardiovascular response.

scholarly journals COVID-19 Pathophysiology and Clinical Effects on Multiple Organ Systems - A Narrative Review

2021 ◽  
Vol 10 (1) ◽  
pp. 151-167
Author(s):  
Kinal Paresh Bhatt ◽  
Jonathan Quinonez ◽  
Abhinav Patel ◽  
Mehrie Patel ◽  
Abdifitah Mohamed ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Case Fatality ◽  
The United States ◽  
Multiple Organ ◽  
Mitigation Strategies ◽  
Therapeutic Interventions ◽  
Chronic Obstructive ◽  
Clinical Effects ◽  
Viral Spread ◽  
Organ Systems

Patients with comorbidities including Hypertension (HTN), Diabetes Mellitus (DM), Chronic Obstructive Pulmonary Disease (COPD), Asthma, Obesity, Cardiovascular Disease (CVD), Chronic Kidney Disease (CKD), and those who are immunocompromised are prone to more severe complications of COVID-19 and a higher rate of hospitalizations. In the United States, around 94% of COVID-19 deaths had an average of 2.6 additional conditions or causes per death. In a summary report published by the Chinese Centre for Disease Control and Prevention of 72,314 cases, case-fatality rate was elevated among those with preexisting comorbid conditions—10.5% for cardiovascular disease, 7.3% for diabetes, 6.3% for chronic respiratory disease, 6.0% for HTN, and 5.6% for cancer. The COVID-19 pandemic continues to threaten people and healthcare systems globally and therefore the global economy. Currently, there is no cure or vaccine for COVID-19 and there is an urgent need to develop target therapies as we continue to learn more about this novel virus. Without therapeutic interventions, much of how we contain the viral spread is prevention through mitigation strategies (social distancing, face masks, supportive care). Early suspicion of COVID-19 symptoms with radiological and laboratory assessments may play a major role in preventing severity of the COVID-19. With this literature review we aim to provide review of pathophysiology of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) and its clinical effects on multiple organ systems.

Microprobe analysis of inclusion bodies related to two benzofuran derivatives

1987 ◽  
Vol 45 ◽  
pp. 672-673
Author(s):  
T. L. Benning ◽  
P. Ingram ◽  
J. D. Shelburne
Keyword(s):  
Inclusion Bodies ◽  
Uranyl Acetate ◽  
Multiple Organ ◽  
High Dose ◽  
En Bloc ◽  
Tissue Samples ◽  
Transmission Electron ◽  
Organ Systems ◽  
Dense Inclusion ◽  
Melanin Complex

Two benzofuran derivatives, chlorpromazine and amiodarone, are known to produce inclusion bodies in human tissues. Prolonged high dose chlorpromazine therapy causes hyperpigmentation of the skin with electron-dense inclusion bodies present in dermal histiocytes and endothelial cells ultrastructurally. The nature of the deposits is not known although a drug-melanin complex has been hypothesized. Amiodarone may also cause cutaneous hyperpigmentation and lamellar lysosomal inclusion bodies have been demonstrated within the cells of multiple organ systems. These lamellar bodies are believed to be the product of an amiodarone-induced phospholipid storage disorder. We performed transmission electron microscopy (TEM) and energy dispersive x-ray microanalysis (EDXA) on tissue samples from patients treated with these drugs, attempting to detect the sulfur atom of chlorpromazine and the iodine atom of amiodarone within their respective inclusion bodies.A skin biopsy from a patient with hyperpigmentation due to prolonged chlorpromazine therapy was fixed in 4% glutaraldehyde and processed without osmium tetroxide or en bloc uranyl acetate for Epon embedding.

Effects of Physical Training on Stuttering

1968 ◽  
Vol 11 (4) ◽  
pp. 767-776 ◽  
Author(s):  
B. Don Franks ◽  
Elizabeth B. Franks
Keyword(s):  
College Students ◽  
Group Therapy ◽  
Physical Training ◽  
Cardiovascular Response ◽  
Training Group ◽  
Physical Stress ◽  
Submaximal Exercise ◽  
Endurance Running ◽  
Response To Exercise

Eight college students enrolled in group therapy for stuttering were divided into two equal groups for 20 weeks. The training group supplemented therapy with endurance running and calisthenics three days per week. The subjects were tested prior to and at the conclusion of the training on a battery of stuttering tests and cardiovascular measures taken at rest, after stuttering, and after submaximal exercise. There were no significant differences (0.05 level) prior to training. At the conclusion of training, the training group was significandy better in cardiovascular response to exercise and stuttering. Although physical training did not significantly aid the reduction of stuttering as measured in this study, training did cause an increased ability to adapt physiologically to physical stress and to the stress of stuttering.

Impairment Rating and Spinal Cord Injuries: Revisiting the Guides

2010 ◽  
Vol 15 (3) ◽  
pp. 1-7
Author(s):  
Richard T. Katz
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injuries ◽  
Functional Independence ◽  
Outcome Data ◽  
Multiple Organ ◽  
Loss Of Function ◽  
Sixth Edition ◽  
Organ Systems ◽  
Cord Injury ◽  
Impairment Ratings

Abstract This article addresses some criticisms of the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides) by comparing previously published outcome data from a group of complete spinal cord injury (SCI) persons with impairment ratings for a corresponding level of injury calculated using the AMA Guides, Sixth Edition. Results of the comparison show that impairment ratings using the sixth edition scale poorly with the level of impairments of activities of daily living (ADL) in SCI patients as assessed by the Functional Independence Measure (FIM) motor scale and the extended FIM motor scale. Because of the combinations of multiple impairments, the AMA Guides potentially overrates the impairment of paraplegics compared with that of quadriplegics. The use and applicability of the Combined Values formula should be further investigated, and complete loss of function of two upper extremities seems consistent with levels of quadriplegia using the SCI model. Some aspects of the AMA Guides contain inconsistencies. The concept of diminishing impairment values is not easily translated between specific losses of function per organ system and “overall” loss of ADLs involving multiple organ systems, and the notion of “catastrophic thresholds” involving multiple organ systems may support the understanding that variations in rating may exist in higher rating cases such as those that involve an SCI.

Renal Manifestations of Tuberous Sclerosis Complex

2020 ◽  
Vol 7 (3) ◽  
pp. 5-19
Author(s):  
Nikhil Nair ◽  
Ronith Chakraborty ◽  
Zubin Mahajan ◽  
Aditya Sharma ◽  
Sidarth Sethi ◽  
...  
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Gene Disruption ◽  
Treatment Guidelines ◽  
Renal Cysts ◽  
Skin Lesions ◽  
Multiple Organ ◽  
Tsc2 Gene ◽  
Genetic Condition ◽  
Organ Systems

Tuberous sclerosis complex (TSC) is a genetic condition caused by a mutation in either the TSC1 or TSC2 gene. Disruption of either of these genes leads to impaired production of hamartin or tuberin proteins, leading to the manifestation of skin lesions, tumors and seizures. TSC can manifests in multiple organ systems with the cutaneous and renal systems being the most commonly affected. These manifestations can secondarily lead to the development of hypertension, chronic kidney disease, and neurocognitive declines. The renal pathologies most commonly seen in TSC are angiomyolipoma, renal cysts and less commonly, oncocytomas. In this review, we highlight the current understanding on the renal manifestations of TSC along with current diagnosis and treatment guidelines.

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