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Nimish Gupta
3,081 Views ยท 2 years ago

Introducing ARTAS in Cocoona Delhi & Dubai by Dr Sanjay Parashar - Hair Transplant Robot

Magdy
11,418 Views ยท 2 years ago

Binding and Fusion: HIV begins its life cycle
when it binds to a CD4 receptor and one of two
co-receptors on the surface of a CD4+
Tlymphocyte. The virus then fuses with the host
cell. After fusion, the virus releases RNA, its
genetic material, into the host cell.

Reverse Transcription: An HIV enzyme
called reverse transcriptase converts the singlestranded HIV RNA to double-stranded HIV DNA.

Integration: The newly formed HIV DNA
enters the host cell's nucleus, where an HIV
enzyme called integrase "hides" the HIV DNA
within the host cell's own DNA. The integrated
HIV DNA is called provirus. The provirus may
remain inactive for several years, producing few or
no new copies of HIV

Transcription: When the host cell receives a
signal to become active, the provirus uses a host
enzyme called RNA polymerase to create copies of
the HIV genomic material, as well as shorter
strands of RNA called messenger RNA (mRNA).
The mRNA is used as a blueprint to make long
chains of HIV proteins.

Assembly: An HIV enzyme called protease cuts
the long chains of HIV proteins into smaller
individual proteins. As the smaller HIV proteins
come together with copies of HIV's RNA genetic
material, a new virus particle is assembled.

Budding: The newly assembled virus pushes out
("buds") from the host cell. During budding, the new
virus steals part of the cell's outer envelope. This
envelope, which acts as a covering, is studded with
protein/sugar combinations called HIV
glycoproteins. These HIV glycoproteins are
necessary for the virus to bind CD4 and coreceptors. The new copies of HIV can now move
on to infect other cells.

Mohamed El-Rouby
23,590 Views ยท 2 years ago

ุชู†ุงุณู‚ ุงู„ู‚ูˆุงู… ู…ุทู„ุจ ูƒู„ ุฃู†ุณุงู† ุณูˆุงุก ุฑุฌู„ ุฃูˆ ุฃู…ุฑุฃุฉ ูˆู„ุฐู„ูƒ ูŠุฌุจ ุชุญุฏูŠุฏ ู…ุนุฏู„ ุชุฑุงูƒู… ุงู„ุฏู‡ูˆู† ุจุงู„ุฌุณู… ูˆ ุชุญุฏูŠุฏ ู†ูˆุน ุชู†ุงุณู‚ ุงู„ู‚ูˆุงู… ูˆ ูƒูŠููŠุชู‡
ุฏ. ู…ุญู…ุฏ ุงู„ุฑูˆุจูŠ
ุงุณุชุดุงุฑู‰ ุฌุฑุงุญุงุช ุงู„ุชุฌู…ูŠู„ ุจุฌุงู…ุนุฉ ุนูŠู† ุดู…ุณ

samer kareem
1,458 Views ยท 2 years ago

Biceps tenodesis is a common procedure performed for tendinopathy of the long head of the biceps brachii (LHB). Indications include partial-thickness LHB tear, tendon subluxation with or without subscapularis tear, and failed conservative management of bicipital tenosynovitis. Biceps tenodesis may also be performed for superior labrum anterior to posterior tears.

vishalmalik100119071982
898 Views ยท 2 years ago

Robotics is the engineering science and technology of robots, and their design, manufacture, application, and structural disposition.

Surgeon
18,456 Views ยท 2 years ago

Coronary Artery Bypass Grafting CABG

Scott
43,486 Views ยท 2 years ago

Common Benign Pain Syndromes--Symptoms and Etiology:
1. Non-specific musculoskeletal pain: This is the most common cause of back pain. Patients present with lumbar area pain that does not radiate, is worse with activity, and improves with rest. There may or may not be a clear history of antecedent over use or increased activity. The pain is presumably caused by irritation of the paraspinal muscles, ligaments or vertebral body articulations. However, a precise etiology is difficulty to identify.
2. Radicular Symptoms: Often referred to as "sciatica," this is a pain syndrome caused by irritation of one of the nerve roots as it exits the spinal column. The root can become inflamed as a result of a compromised neuroforamina (e.g. bony osteophyte that limits size of the opening) or a herniated disc (the fibrosis tears, allowing the propulsus to squeeze out and push on the adjacent root). Sometimes, it's not precisely clear what has lead to the irritation. In any case, patient's report a burning/electric shock type pain that starts in the low back, traveling down the buttocks and along the back of the leg, radiating below the knee. The most commonly affected nerve roots are L5 and S1.
3. Spinal Stenosis: Pain starts in the low back and radiates down the buttocks bilaterally, continuing along the backs of both legs. Symptoms are usually worse with walking and improve when the patient bends forward. Patient's may describe that they relieve symptoms by leaning forward on their shopping carts when walking in a super market. This is caused by spinal stenosis, a narrowing of the central canal that holds the spinal cord. The limited amount of space puts pressure on the nerve roots when the patient walks, causing the symptoms (referred to as neurogenic claudication). Spinal stenosis can be congenital or develop over years as a result of djd of the spine. As opposed to true claudication (pain in calfs/lower legs due to arterial insufficiency), pain resolves very quickly when person stops walking and assumes upright position. Also, peripheral pulses should be normal.
4. Mixed symptoms: In some patients, more then one process may co-exist, causing elements of more then one symptom syndrome to co-exist.

usmle tutoring
13,917 Views ยท 2 years ago

USMLE Step 2 CS - Numbness Weakness Full Video

DrHouse
16,267 Views ยท 2 years ago

After the cell membranes are dissolved, the typical branching and budding yeast cells can be seen. Sometimes, it has the appearance of a tangled web of threads. At other times, only small branches will be seen.Yeast are normal inhabitants of the vagina, but only in very small numbers. If you visualize any yeast in your sample, it is considered significant.

samer kareem
1,709 Views ยท 2 years ago

Women who have untreated chlamydia might develop pelvic inflammatory disease, which can cause ectopic pregnancies, chronic pelvic pain and infertility. ... The antibiotics used to treat chlamydia are safe in pregnancy and are used in pregnant women for many other types of infections.

Medical_Admin
14,543 Views ยท 2 years ago

In human anatomy, the radial artery is the main blood vessel, with oxygenated blood, of the lateral aspect of the forearm.

Surgeon
20,984 Views ยท 2 years ago

Ultrasound Guided Sclerotherapy for Varicose Veins

Doctor
6,086 Views ยท 2 years ago

A video showing squared notch

Mohamed
13,581 Views ยท 2 years ago

An educational video demonstrating ultrasound-guided amniocentesis of the amniotic fluid

samer kareem
7,804 Views ยท 2 years ago

Alpha-1 Antitrypsin Deficiency (Alpha-1) is a genetic (inherited) condition โ€“ it is passed from parents to their children through their genes. Alpha-1 may result in serious lung disease in adults and/or liver disease at any age.

DrPhil
28,335 Views ยท 2 years ago

Migraine Pathophysiology 3D Animation

samer kareem
927 Views ยท 2 years ago

Decompression is a surgical procedure that is performed to alleviate pain caused by pinched nerves (neural impingement). During a lumbar decompression back surgery, a small portion of the bone over the nerve root and/or disc material from under the nerve root is removed to give the nerve root more space and provide a better healing environment. There are two common types of spine surgery decompression procedures: Microdiscectomy Lumbar Microdiscectomy Microdiscectomy Surgery Video A microdiscectomy (a microdecompression) is typically performed for pain from a lumbar herniated disc. The surgery is considered reliable for leg pain caused by the herniated disc, most commonly called sciatica by patients, and most commonly referred to by medical practitioners as a radiculopathy. Read more about Microdiscectomy Surgery

samer kareem
2,704 Views ยท 2 years ago

A stroke is a "brain attack". It can happen to anyone at any time. It occurs when blood flow to an area of brain is cut off. When this happens, brain cells are deprived of oxygen and begin to die. When brain cells die during a stroke, abilities controlled by that area of the brain such as memory and muscle control are lost. How a person is affected by their stroke depends on where the stroke occurs in the brain and how much the brain is damaged. For example, someone who had a small stroke may only have minor problems such as temporary weakness of an arm or leg. People who have larger strokes may be permanently paralyzed on one side of their body or lose their ability to speak. Some people recover completely from strokes, but more than 2/3 of survivors will have some type of disability.

samer kareem
2,029 Views ยท 2 years ago

This video may contain images of a medical doctor providing emergency care for a patient.

samer kareem
3,416 Views ยท 2 years ago

Although drug treatment of hypertension is associated with improved survival and decreased vascular complications, drug compliance is a major problem in the control of hypertension. All antihypertensive medications are associated with side effects; thus, it is a physician's responsibility to explain to each patient the side effects of the drugs he prescribes to treat hypertension, and to instill in the patient a sense of necessity for the treatment of hypertension. The choice of antihypertensive drug should be made based on each patient's lifestyle, overall health and ability to tolerate the drug. Ideally, the antihypertensive regimen should be simple, effective, convenient to take and have very few side effects.




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