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Magdy
11,419 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.

RSM Enterprises
33 Views ยท 9 months ago

โฃRSM Enterprises are recognized amidst prominent Orlistat Capsules 60mg (Euslim 60mg) Manufacturers, Exporters and Suppliers in India. Orlistat 60mg Weight Loss Pills are a prescription weight-control medication containing orlistat, which acts as a lipase inhibitor.
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Mohamed
32,281 Views ยท 2 years ago

Video shows a fine needle biopsy with guided ultrasound of a thyroid nodule.

Histology
6,184 Views ยท 2 years ago

Histology of Vocal Cords

DrMDK
17,027 Views ยท 2 years ago

Henry Anhalt DO FAAP
Ped Eddo

damcojobs01011982
16,244 Views ยท 2 years ago

Health Care Reform Cost Visualization

RSM Enterprises
33 Views ยท 7 months ago

โฃTadalip 20 is an efficient medicine that helps resolve the problem of Erectile Dysfunction. It comprises Tadalafil 20mg as an active component.
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Scott
1,275 Views ยท 2 years ago

Colorectal Cancer Laparoscopic Surgery 3D Animation

samer kareem
1,816 Views ยท 2 years ago

how to calm a crying baby everytime

samer kareem
10,275 Views ยท 2 years ago

Among common cancers, pancreatic cancer has one of the poorest prognoses. Because pancreatic cancer often grows and spreads long before it causes any symptoms, only about 6% of patients are still alive five years after diagnosis. For some pancreatic patients, however, a complex surgery known as the Whipple procedure may extend life and could be a potential cure. Those who undergo a successful Whipple procedure may have a five-year survival rate of up to 25%.

M_Nabil
22,760 Views ยท 2 years ago

This video depicts how a stent is placed in the coronary artieries. We first place a guiding wire in the heart artery through a catheter, usually from the groin. Then the stent is inflated by a balloon in the artery, which is then removed. The stent remains permanently. Blood thinners, aspirin and plavix, are both required after a stent is placed in your heart artery.

hooda
11,924 Views ยท 2 years ago

Watch that video to know What is Trypophobia? Do You Have it ?

samer kareem
928 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
11,939 Views ยท 2 years ago

This brief exam will help you to quickly detect major risks and prompt you to refer patients to appropriate specialists.

hooda
12,823 Views ยท 2 years ago

Watch that video of Knife Stabbed Inside Chest Removal Surgery

Surgeon
38 Views ยท 2 years ago

Laparoscopic Appendicectomy is a surgical technique which is used to remove inflamed appendix through laparoscopic surgery. Max Hospital presents a special surgical demonstration on Laparoscopic Appendicectomy. Watch this video and get an idea how the surgery is performed.

For more information visit: http://www.maxhealthcare.in/mi....nimal-access/appendi

gradsky
10,624 Views ยท 2 years ago

Median Sternotomy

samer kareem
9,603 Views ยท 2 years ago

An atrioventricular septal defect (AVSD) is a heart defect in which there are holes between the chambers of the right and left sides of the heart, and the valves that control the flow of blood between these chambers may not be formed correctly. This condition is also called atrioventricular canal (AV canal) defect or endocardial cushion defect. In AVSD, blood flows where it normally should not go. The blood may also have a lower than normal amount of oxygen, and extra blood can flow to the lungs. This extra blood being pumped into the lungs forces the heart and lungs to work hard and may lead to

DrHouse
26,901 Views ยท 2 years ago

Robotic Prostatectomy: Cornell Athermal Robotic Technique

ashrafhamadasurgery
13,966 Views ยท 2 years ago

laparoscopic anterior resection




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