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Removal of a Maxillary Sinus Cholesterol Cyst
Removal of a Maxillary Sinus Cholesterol Cyst Scott 21,379 Views • 2 years ago

The endoscopic removal of a large intramaxillary sinus cyst which contained serous like fluid and many shiny flat white cholesterol crystals.

Abdomen Waist Liposuction for Weight Loss
Abdomen Waist Liposuction for Weight Loss Doctor 19,813 Views • 2 years ago

Abdomen Waist Liposuction for Weight Loss

Intercostal Tube Removal
Intercostal Tube Removal Doctor 13,406 Views • 2 years ago

nurses removing chest tube from surgery after spontaneous pneumothorax

Sprains and Strains
Sprains and Strains Doctor 9,417 Views • 2 years ago

Sprains and Strains

Laparoscopic Right Adrenalectomy
Laparoscopic Right Adrenalectomy Mohamed Ibrahim 11,613 Views • 2 years ago

removal of a "toxic" phaeochromocytoma

Mechanism of Cisplatin Anti-Cancer Drug
Mechanism of Cisplatin Anti-Cancer Drug Scott Stevens 16,939 Views • 2 years ago

Cisplatin is in a class of drugs known as platinum-containing compounds used to treat various types of cancers including metastatic testicular and ovarian tumors. The molecule was first discovered in 1845, but did not receive FDA approval until 1978. Today it is known as the "penicillin of cancer drugs," because it is so effective for many different cancers. There are three key players involved in Cisplatin's mechanism: (1) Cisplatin, (2) DNA (3) and an HMG Protein. Most Cisplatin enters the body through active transport, but some molecules are passively defused through the cell membrane. Once in the nucleus, Cisplatin can form an adduct with two consecutive guanine bases within a strand of DNA. The molecule loses its chlorine atoms in exchange for the nitrogen atoms of the target guanines. Cisplatin can bond more tightly with nitrogen because nitrogen balances the platinum charge more effectively than chlorine. It is this adduct-induced DNA bend that allows binding of proteins which contain the high mobility group, HMG domain. Once the protein is bound to the DNA, it inserts a wedge-like phenyl group of phenylalanine 37 into the widened minor groove created by the bend. The tightly bound HMG protein causes destacking of the nucleotide bases, resulting in the DNA helix becoming kinked. In this way, Cisplatin can be thought of as a monkey wrench in the DNA repair system. With the HMG protein bound to the DNA, the modified strand is not repaired properly and so the cell dies. The success of Cisplatin depends on its ratio of efficacy between cancerous and healthy cells.

American Academy of Family Physicians
American Academy of Family Physicians Scott Stevens 5,787 Views • 2 years ago

A video from the American Academy of Family Physicians

Posterior Iris Claw Lens Implantataion
Posterior Iris Claw Lens Implantataion Scott Stevens 8,643 Views • 2 years ago

Posterior Iris Claw Lens Implantataion

Mechanism of Addiction
Mechanism of Addiction Medical_Videos 8,283 Views • 2 years ago

Mechanism of Addiction

Histology of Gastric Fundus
Histology of Gastric Fundus Histology 5,392 Views • 2 years ago

Histology of Gastric Fundus

PANCREAS
PANCREAS samer kareem 19,314 Views • 2 years ago

Enzymes, or digestive juices, produced by the pancreas are secreted into the small intestine to further break down food after it has left the stomach. The gland also produces the hormone insulin and secretes it into the bloodstream in order to regulate the body's glucose or sugar level.

Myocardial Blood Flow
Myocardial Blood Flow samer kareem 16,815 Views • 2 years ago

Coronary circulation is the circulation of blood in the blood vessels of the heart muscle (myocardium). The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins.

Endometritis
Endometritis samer kareem 1,589 Views • 2 years ago

Postpartum endometritis refers to infection of the decidua (ie, pregnancy endometrium). The infection may also extend into the myometrium (called endomyometritis) or involve the parametrium (called parametritis).

New developed antibody
New developed antibody samer kareem 1,918 Views • 2 years ago

A new report analyzing FDA-approved monoclonal antibodies (mAbs) produced by a select group of leading biotechnology companies shows that clinical development times – specifically the duration of Phase II and Phase III trials – are lengthening, while FDA review times have remained constant. The average time from investigational new drug (IND) filing to market was 6.7 years for 11 mABs approved between 1994 and 2003 but shot up to 8.3 years for 12 mAbs approved between 2004 and March 9, 2011, according to Deloitte Recap LLC’s analysis, Therapeutic Monoclonal Antibodies – Insights, Strategies and Data.

Intelligent People Have Fewer Friends, Here's Why...
Intelligent People Have Fewer Friends, Here's Why... samer kareem 1,781 Views • 2 years ago

Intelligent People Have Fewer Friends, Here's Why...

What is your mental age?
What is your mental age? samer kareem 5,514 Views • 2 years ago

What is your mental age?

Ehlers-Danlos Syndrome
Ehlers-Danlos Syndrome samer kareem 12,757 Views • 2 years ago

Ehlers-Danlos syndrome is a group of disorders that affect the connective tissues that support the skin, bones, blood vessels, and many other organs and tissues. Defects in connective tissues cause the signs and symptoms of Ehlers-Danlos syndrome, which vary from mildly loose joints to life-threatening complications. Previously, there were more than 10 recognized types of Ehlers-Danlos syndrome, differentiated by Roman numerals. In 1997, researchers proposed a simpler classification that reduced the number of major types to six and gave them descriptive names: the classical type (formerly types I and II), the hypermobility type (formerly type III), the vascular type (formerly type IV), the kyphoscoliosis type (formerly type VIA), the arthrochalasia type (formerly types VIIA and VIIB), and the dermatosparaxis type (formerly type VIIC). This six-type classification, known as the Villefranche nomenclature, is still commonly used. The types are distinguished by their signs and symptoms, their underlying genetic causes, and their patterns of inheritance. Since 1997, several additional forms of the condition have been described. These additional forms appear to be rare, affecting a small number of families, and most have not been well characterized.

Shoulder pain and exercises Milwaukee WI
Shoulder pain and exercises Milwaukee WI samer kareem 7,888 Views • 2 years ago

Shoulder pain and exercises Milwaukee WI

Here's Why Your Skin Doesn't Rip Easily
Here's Why Your Skin Doesn't Rip Easily samer kareem 4,798 Views • 2 years ago

Here's Why Your Skin Doesn't Rip Easily

Clostridium difficile (c.diff) Infection
Clostridium difficile (c.diff) Infection samer kareem 4,953 Views • 2 years ago

The average human digestive tract is home to as many as 1,000 species of microorganisms. Most of them are harmless -- or even helpful -- under normal circumstances. But when something upsets the balance of these organisms in your gut, otherwise harmless bacteria can grow out of control and make you sick. One of the worst offenders is a bacterium called Clostridium difficile(C. difficile, or C. diff). As the bacteria overgrow they release toxins that attack the lining of the intestines, causing a condition called Clostridium difficilecolitis.

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