Top videos

Life Journey
Life Journey samer kareem 1,755 Views • 2 years ago

9 Months In The Womb: A Remarkable Look At Fetal Development Through Ultrasound

Multiple Myeloma Mechanism of Action
Multiple Myeloma Mechanism of Action samer kareem 1,510 Views • 2 years ago

The pathobiology of MM is complex and the root underlying cause of myeloma is the multistep genetic changes in the postgerminal center B cell. In addition, the bone marrow microenvironment plays a crucial role.[2] The interaction between myeloma cells and the microenvironment is mediated through adhesive interactions via cell-surface receptors, paracrine loops involving several cytokines, such as IL-6, VEGF and IL-10, and suppression of cell-mediated immunity.[2–4] IMiDs modulate many of these interactions leading to decreased myeloma cell growth and survival. Thalidomide was the first IMiD introduced to treat MM. It was initially synthesized in Germany in the late 1950s to treat insomnia and morning sickness. It was withdrawn from the market in 1961 because of its teratogenic effects. Its immunomodulatory properties were realized when it was observed to improve erythema nodosum leprosum, a painful immunologic reaction of leprosy, leading to its approval by the FDA in 1998 with tight prescribing and marketing regulations. Subsequent research showed the diverse mechanism of action of thalidomide including its immunomodulatory effect by inhibition of de novo IgM antibody synthesis,[5] modulation of the T-cell subset by increasing the T-helper cells, inhibitory effects on the TNF-α and antiangiogenic activity leading to its use in MM. Significantly higher response rates in combination with dexamethasone led to its approval in the treatment of newly diagnosed MM in 2006. Lenalidomide, a second-generation IMiD, was developed from the structural backbone of the thalidomide molecule by the addition of an amino group (NH2-) at position 4 of the phthaloyl ring and removal of the carbonyl group (C = O) of the 4-amino-substituted phthaloyl ring (Table 1).[6] In addition to immunomodulatory effects, other mechanisms of action have been described such as direct cytotoxicity via induction of apoptosis, inhibition of cell adhesion molecules and inhibition of growth signals that promote bone marrow angiogenesis

Pneumoconiosis Disease
Pneumoconiosis Disease samer kareem 1,340 Views • 2 years ago

The most common symptoms of pneumoconiosis are cough and shortness of breath. The risk is generally higher when people have been exposed to mineral dusts in high concentrations and/or for long periods of time. Inadequate or inconsistent use of personal protective equipment (PPE) such as respirators (specially fitted protective masks) is another risk factor since preventing dusts from being inhaled will also prevent pneumoconiosis. Pneumoconiosis does not generally occur from environmental (non-workplace) exposures since dust levels in the environment are much lower.

How Deep Vein Thrombosis develop
How Deep Vein Thrombosis develop samer kareem 7,931 Views • 2 years ago

In Deep Vein Thrombosis, blood clot is able to reach the heart and from there it transport to the arteries of the lungs, where it may stuck in the...

Repair of Pectus Excavatum.
Repair of Pectus Excavatum. Alicia Berger 1,671 Views • 2 years ago

Surgical Repair of Pectus Excavatum. Pectus excavatum is a condition in which a person's breastbone is sunken into his or her chest.

Human heart & Electric Beat-Pacemakers
Human heart & Electric Beat-Pacemakers samer kareem 7,252 Views • 2 years ago

Vediographic-Electric Beat-Pacemakers and the human heart

Swallowable Balloon help to loss weight
Swallowable Balloon help to loss weight samer kareem 1,865 Views • 2 years ago

Interesting method to help obese patients lose weight.

Prevents blood from sticking on medical devices
Prevents blood from sticking on medical devices samer kareem 1,854 Views • 2 years ago

This coating prevents blood from sticking on medical devices

Warts, Are they contagious?
Warts, Are they contagious? samer kareem 1,750 Views • 2 years ago

A short story about Warts, Are they contagious?

Anorectal Malformation
Anorectal Malformation samer kareem 1,894 Views • 2 years ago

Anorectal malformations are defects that occur during the fifth to seventh weeks of fetal development. With these defects, the anus (opening at the end of the large intestine through which stool passes) and the rectum (area of the large intestine just above the anus) do not develop properly

See inside the lungs!
See inside the lungs! samer kareem 17,353 Views • 2 years ago

Bronchoscopy Procedure - See inside the lungs!

Terrifying Sinus Infection
Terrifying Sinus Infection samer kareem 1,809 Views • 2 years ago

Terrifying Sinus Infection - Disturbing - Must Watch

ROBOTIC ASSISTED RADICAL NEPHRECTOMY
ROBOTIC ASSISTED RADICAL NEPHRECTOMY samer kareem 1,187 Views • 2 years ago

ROBOTIC ASSISTED RADICAL NEPHRECTOMY

Anterior Cruciate Ligament (ACL) Reconstruction
Anterior Cruciate Ligament (ACL) Reconstruction samer kareem 1,926 Views • 2 years ago

In nonsurgical treatment, progressive physical therapy and rehabilitation can restore the knee to a condition close to its pre-injury state and educate the patient on how to prevent instability.37, 38 This may be supplemented with the use of a hinged knee brace. However, many people who choose not to have surgery may experience secondary injury to the knee due to repetitive instability episodes. Surgical treatment is usually advised in dealing with combined injuries (ACL tears in combination with other injuries in the knee). However, deciding against surgery is reasonable for select patients. Nonsurgical management of isolated ACL tears is likely to be successful or may be indicated in patients:

Scar Less Gynecomastia Surgery in Delhi / Male Breast Reduction Surgery in India by Dr Ajaya Kashyap
Scar Less Gynecomastia Surgery in Delhi / Male Breast Reduction Surgery in India by Dr Ajaya Kashyap Dr Ajaya Kashyap 3,881 Views • 2 years ago

PREPARING FOR GYNECOMASTIA SURGERY - This maybe the first time you are planning to undergo surgery. It's natural to feel little anxious about the whole process. Get more information www.bestbreastsurgeryindia.com | www.themedspa.us/cosmetic-surgery/male-breast-reduction.html

Immunotherapy cancer trial cures 90% of participants.
Immunotherapy cancer trial cures 90% of participants. samer kareem 1,445 Views • 2 years ago

Immunotherapy cancer trial cures 90% of participants.

Frostbite, drainage
Frostbite, drainage samer kareem 19,107 Views • 2 years ago

Frostbite is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale. Frostbite is most common on the fingers, toes, nose, ears, cheeks and chin. Exposed skin in cold, windy weather is most vulnerable to frostbite. But frostbite can occur on skin covered by gloves or other clothing. Frostnip, the first stage of frostbite, doesn't cause permanent skin damage. You can treat very mild frostbite with first-aid measures, including rewarming your skin. All other frostbite requires medical attention because it can damage skin, tissues, muscle and bones. Possible complications of severe frostbite include infection and nerve damage.

Non-Surgical Treatment of Benign Prostatic Hyperplasia.
Non-Surgical Treatment of Benign Prostatic Hyperplasia. samer kareem 5,204 Views • 2 years ago

Oral therapy has potential for symptom relief. It has the advantage of no surgery. Disadvantages include ongoing medication therapy, risks of side effects, high out of pocket cost, and sometimes over time effectiveness diminishes. Certain men also do not like to take medications. This is the most common way to treat BPH. Medicines like Flomax, Cardura, Hytrin and Uroxatral have proven to be effective in the treatment of most cases. Alpha Blockers relieve the obstruction by trying to stop the process by which the construction occurs. They basically relax the smooth muscle cells in the prostate to relieve urinary obstruction. Like most medicines side effects can occur. They are mild in most cases and include dizziness on standing, feeling fatigued, loss of ability to ejaculate with orgasm.

Meckel's Diverticulum Surgery
Meckel's Diverticulum Surgery samer kareem 2,025 Views • 2 years ago

Meckel's Diverticulum is a vestigeal remnant of vitellointestinal duct. Its a true diverticulum as it contains all three layers of intestine. It is usually presents at anti mesenteric burder. Usually 2 cm (range 1- 12 cm ) in length, found in 2 % of population , and situated around 2 feet of Ileaocecal junction. 50 % cases it contains gastric mucosa , but may also contain colonic, duodenal or pancreatic mucosa .male : female ration in symptomatic cases is 3 : 1.It may mimic acute appendicitis, so in cases where one is going for surgery for appendicitis , must search for meckel's diverticulum........

Artificial Womb!
Artificial Womb! samer kareem 1,362 Views • 2 years ago

Scientists Create Artificial Womb

Showing 209 out of 378