A very simplified method giving information about cystic fibrosis

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10 Biggest Babies Ever Born

An abscess is a tender mass generally surrounded by a colored area from pink to deep red. Abscesses are often easy to feel by touching. The middle of an abscess is full of pus and debris. Painful and warm to touch, abscesses can show up any place on your body. The most common sites are in your armpits (axillae), areas around your anus and vagina(Bartholin gland abscess), the base of your spine (pilonidal abscess), around a tooth (dental abscess), and in your groin. Inflammation around a hair follicle can also lead to the formation of an abscess, which is called a boil (furuncle).

The objectives of hemodialysis are to extract toxic nitrogenous substances from the blood and to remove excess water. In hemodialysis, the blood, laden with toxins and nitrogenous wastes, is diverted from the patient to a machine, a dialyzer, in which the blood is cleansed and then returned to the patient. Diffusion, osmosis, and ultrafiltration are the principles on which hemodialysis is based.

The toxins and wastes in the blood are removed by diffusion—that is, they move from an area of higher concentration in the blood to an area of lower concentration in the dialysate. The dialysate is a solution made up of all the important electrolytes in their ideal extracellular concentrations.

The electrolyte level in the patient’s blood can be brought
under control by properly adjusting the dialysate bath. The semipermeable membrane impedes the diffusion of large molecules,
such as red blood cells and proteins.

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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.

Neurogenic shock is a distributive type of shock resulting in low blood pressure, occasionally with a slowed heart rate, that is attributed to the disruption of the autonomic pathways within the spinal cord. It can occur after damage to the central nervous system such as spinal cord injury.

AZT Mechanism of Antiviral Activity

Hiatal Hernia 3D Medical Animation

How a simple conversation about colon cancer screening can save your life.

our dentist says it's time to remove your wisdom teeth. He may refer you to an oral surgeon, who will do the procedure in his office. It should only take a few days for you to heal and feel back to normal.

LIZ: The first time the doctor made my tip too narrow and I didnt look like myself. The second time the doctor made my tip too wide, and actually took out (removed) extra bone from the side of my nose. That didnt need to be taken out (removed)

My initial consultation with Dr. Nassif was fantastic! He treated me liker his own daughter, and was very caring and thorough. He went over everything!

DR. NASSIF: Liz came into me for a revision rhinoplasty. She told me that shes had two previous rhinoplasties. She was unhappy with the way her nose appeared on her face. She felt it was asymmetric, the tip was kind of bulbous, or large appearing, especially when she looked up, this view, it was very asymmetric. And so, her whole goal was to make it look better, hopefully make it her LAST surgery, and also to help with her breathing.

One of the things thats very important about revision rhinoplasty that you always have to consider is; What are you going to find in there? Even though you can feel the nose, you can palpate it, you can look at it, and you can guess what the other doctors have performed; your first up-hill battle is to see how much scar tissue youre going to be able to identify with. So when you have to open up the nose, you have to remove the scar tissue, identify it: whats there, whats present, whats been removed. Then after you do that, and you have cartilage now ready for grafting, or fascia, or perichondrium, you have to start rebuilding it. Rebuilding it (cartilage) is the second big stage after weve already carved everything; weve carved the cartilage. In that scenario when Im playing with the nose, in regards to staring at the profile, staring at the front of the nose, I go back and forth and look inside and outside of the nose to make sure its as symmetric as possible. That takes a long time One of Lizs main complaints was that on her profile, that her tip stuck out too far. And so one of the things I had to do in surgery is called a medial cura tuck-up, I had to push the tip back, by pushing the tip back, it can make the tip look a little bit wider. But in this situation, I was able to bring everything in as much as I can. After Im finished with everything, and Im happy, then we go ahead and we start to close the nose. Thats putting every little small stitch in perfectly, so that the scar will be minimally visible.

Spina bifida is a type of birth defect called a neural tube defect. It occurs when the bones of the spine (vertebrae) don't form properly around part of the baby's spinal cord. Spina bifida can be mild or severe. The mild form is the most common.

Interrupted Simple Suture

Osteochondroma. Osteochondromas (osteocartilaginous exostoses), the most common benign bone tumors, may arise from any bone but tend to occur near the ends of long bones. ... Enchondroma. ... Chondroblastoma. ... Chondromyxofibroma. ... Osteoid osteoma. ... Nonossifying fibroma (fibrous cortical defect) ... Benign giant cell tumor of bone.

A DMC patient suffering from an artery blockage is helped by Intravascular Ultrasound (IVUS), new technology that reveals the condition of the artery and may prevent heart attacks. ~ Detroit Medical Center