Actin

that contains myofibrils, which account for the visual striations as well as the contractile force of muscular tissue. Myofibrils are made up of a thick filament and a thin filament; the thick filament is myosin and the thin filament is a complex of actin, troponin, and tropomyosin (3)(4). Using calcium and ATP, the thick and thin filaments interact with each other resulting in a power stroke and a shortening of the sarcomere, the skeletal muscle fiber's contractile unit (4). The shortening of…

layers. A difference between the muscle and nervous tissues related to the organelle present and its function is that the proteins which are in the nucleus of the tissues are different and have different functions. In the muscle tissue the proteins, actin and myosin are required for muscle contraction. However in the nervous tissue to maintain the ‘resting potential’ carrier proteins are needed. The difference between the function and location of the muscle and nervous tissues is that the…

Helicobacter pylori is correlated with the malignant transformation of the gastric epithelial cells. It has been correlated with a variety of condtitions that serve as a precursor for gastric carcinogenesis. This review focuses on the different factors that enable Helicobacter pylori to colonize and damage the stomach epithelium, which are directly linked to Helicobacter pylori-induce gastric carcinogenesis. These factors include cytotoxin associated gene A (cagA), Vacuolating toxin A (vacA),…

Stephen becomes fully aware of the state he’s put in as he anticipates that he has not live up to his father’s expectations. “You got to start actin’ like a man if you want to hold down a man’s job,” he had warned “There ain’t no room for kids in the pulp woods.” The boy winced, remembering the too-familiar squint of doubt, the hard knots of disappointment above the cold grey eyes.” Stephen’s father…

or striped. The appearance is light and dark bands. Dark bands are made up of thick protein filaments that are produced by myosin proteins. These bands do not let light pass through. The light bands are between the dark bands, they are made up of actin protein and let light pass through them (Martini & Nath,2014…

with many EYFP expression plasmids that had be previously homogenized and denatured in Laemmli buffer. The protein samples were diluted to a concentration of 1μg/μl. The different tubes are labeled as follows: GOL for golgi, TUB for tubulin, ACT for actin, MIT for mitochondria, and HEP for non-transfected Hepa-1 cells. SDS-PAGE: A gel was obtained, then while wearing gloves the package was cut open and gel was removed from the cassette. Before putting the gel in the apparatus, the tape on the…

20 people out of every 100,000 people worldwide have Myasthenia Gravis (Myasthenia Gravis, 2012). Myasthenia Gravis is a disorder that causes skeletal muscle weakness. People experience the worst weakness during periods of activity and the weakness improves under periods of rest. The most common weakness is located in the muscles around the eyes. This causes blurred or double vision in the eyes. It also effects the muscles used in facial expression and chewing. These conditions can cause…

Alkylated polycyclic aromatic compounds (alkyl-PACs) are the major aromatic constituent of total PAH in crude oil and originated from incomplete combustion process. Whereas benzo[a]pyrene (BaP) is a well-known human carcinogen, dibenzothiophene (DBT) and retene (Ret) are not; however, all three compounds are important environmental pollutants. Their toxicity is not yet characterized. In this study, we used BaP (parent PAH), DBT and Ret (alkyl-PACs) to elucidate the mechanism of neurotoxicity…

Summary Everything which is living is composed of different living parts called cells. Cells are the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. The human body has many different types of cells which all exist to perform different tasks and functions. Without cells all organisms would cease to exist. Like all living things, the cell must also reproduce and eventually die. Cells reproduce…

PATH2201 Processes in Disease Media Assignment – Can Probiotics Aid in the Treatment of Coeliac Disease? Elissa Jennifer Watt (z3463000) 21/09/14 Tutor: Melanie Walker Introduction Advances in medical diagnosis and screening have revealed that coeliac disease (CD) is a major health issue across the world, affecting all ages. In Australia, the rate of CD was previously estimated to be around 0.4% (Hovell, et al., 2001). More recent estimates suggest that around 1.2% in men and 1.9% in…