Top videos

Anatomy of the Prostate
Anatomy of the Prostate Doctor 36,515 Views • 2 years ago

Anatomy of the Prostate

Infant CPR Video Demonstration
Infant CPR Video Demonstration Doctor 15,537 Views • 2 years ago

Infant CPR Video Demonstration

Mesenteric Arteriogram
Mesenteric Arteriogram Mohamed 9,761 Views • 2 years ago

Mesenteric artery illuminated with luciferase

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

Zerona Laser Treatment
Zerona Laser Treatment Dr Joseph Fretta 7,374 Views • 2 years ago

bnbmedispa.com offers Titan Laser, Zerona Laser, Zerona Laser Treatment, Titan skin tightening in NJ, Monmouth, and Shrewsbury. call us at (732) 460-0600 to get discout on any laser treatment.

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

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

Histology of Gastric Fundus

A Real Aortic Valve Replacement:
A Real Aortic Valve Replacement: samer kareem 6,585 Views • 2 years ago

The human heart has four main valves—two on the left and two on the right. The aortic valve is one of the main valves on the left side of the heart. It is the outflow valve for the left ventricle, which means that it is the valve between the heart and the body. The aortic valve opens when the left ventricle squeezes to pump out blood, and closes in between heart beats to keep blood from going backward into the heart.

Malaria
Malaria samer kareem 4,799 Views • 2 years ago

Malaria is a serious and sometimes fatal disease caused by a parasite that commonly infects a certain type of mosquito which feeds on humans. People who get malaria are typically very sick with high fevers, shaking chills, and flu-like illness.

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).

Breast Cancer Tumor Removal Surgery
Breast Cancer Tumor Removal Surgery samer kareem 6,122 Views • 2 years ago

Breast lump removal is surgery to remove a lump that may be breast cancer. Tissue around the lump is also removed. This surgery is called a lumpectomy. When a noncancerous tumor such as a fibroadenoma of the breast is removed, it is often called an excisional breast biopsy, instead of a lumpectomy

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

What is your mental age?

What Happens When You're In a Coma?
What Happens When You're In a Coma? samer kareem 4,622 Views • 2 years ago

What Happens When You're In a Coma?

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.

Showing 344 out of 378