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Cardiovascular Diseases: Pathological conditions involving the Cardiovascular system including the Heart; the Blood vessels; or the Pericardium.

Near-infrared Fluorescence Imaging of Abdominal Aortic Aneurysms

JoVE 10394

Source: Arvin H. Soepriatna1, Kelsey A. Bullens2, and Craig J. Goergen1


1 Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


2 Department of Biochemistry, Purdue University, West Lafayette, Indiana


Near-infrared fluorescence (NIRF) imaging…

 Biomedical Engineering

What is Genetic Engineering?

JoVE 10806

Genetic engineering is the process of modifying an organism’s DNA to introduce new, desirable traits. Many organisms, from bacteria to plants and animals, have been genetically modified for academic, medical, agricultural, and industrial purposes. While genetic engineering has definite benefits, ethical concerns surround modifying humans and our food supply.

Genetic engineering is possible because the genetic code—the way information is encoded by DNA—and the structure of DNA are universal among all life forms. As a result, an organism’s genetic code may be modified in several ways. The nucleotide sequence may be selectively edited by using techniques such as the CRISPR/Cas9 system. Known as the "molecular scissors," the CRISPR/Cas9 system is an innate, prokaryotic immune response that has been co-opted for editing genetic information. A gene may also be removed from an organism to create a “knockout,” or introduced to create a “knockin,” through a process called gene targeting. This method relies on homologous recombination—genetic exchange between DNA molecules that share an extended region with similar sequences—to modify an endogenous gene. Scientists can also insert a gene from one organism into the genome of another, resulting in a transgenic organism. Generally, DNA

 Core: Biology

Abdominal Exam I: Inspection and Auscultation

JoVE 10088

Source: Alexander Goldfarb, MD, Assistant Professor of Medicine, Beth Israel Deaconess Medical Center, MA


Gastrointestinal disease accounts for millions of office visits and hospital admissions annually. Physical examination of the abdomen is a crucial tool in diagnosing diseases of the gastrointestinal tract; in addition, it can help…

 Physical Examinations II

Photoacoustic Tomography to Image Blood and Lipids in the Infrarenal Aorta

JoVE 10395

Source: Gurneet S. Sangha and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


Photoacoustic tomography (PAT) is an emerging biomedical imaging modality that utilizes light generated acoustic waves to obtain compositional information from tissue. PAT can be used to image …

 Biomedical Engineering

Blood Pressure Measurement

JoVE 10083

Source: Meghan Fashjian, ACNP-BC, Beth Israel Deaconess Medical Center, Boston MA


The term blood pressure (BP) describes lateral pressures produced by blood upon the vessel walls. BP is a vital sign obtained routinely in hospital and outpatient settings, and is one of the most common medical assessments performed around…

 Physical Examinations I

Computational Fluid Dynamics Simulations of Blood Flow in a Cerebral Aneurysm

JoVE 10479

Source: Joseph C. Muskat, Vitaliy L. Rayz, and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


The objective of this video is to describe recent advancements of computational fluid dynamic (CFD) simulations based on patient- or animal-specific vasculature. Here,…

 Biomedical Engineering

Invertebrate Lifespan Quantification

JoVE 5338

Many animals naturally stop growing upon reaching adulthood, after which they undergo aging or "senescence" until dying. The amount of time between an organism\'s birth and death is called its lifespan, which can be influenced by various biological and environmental factors. By exposing organisms to different growth conditions, scientists can better understand the factors affecting lifespan.…

 Developmental Biology

General Approach to the Physical Exam

JoVE 10043

Source: Jaideep S. Talwalkar, MD, Internal Medicine and Pediatrics, Yale School of Medicine, New Haven, CT


The examination of the body is fundamental to the practice of medicine. Since the Roman Empire, physicians have described the connection between alterations in function of specific parts of the body and specific…

 Physical Examinations I
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