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Cortisol and Glucocorticoids
Cortisol and Glucocorticoids samer kareem 3,643 Views • 2 years ago

The vast majority of glucocorticoid activity in most mammals is from cortisol, also known as hydrocortisone. Corticosterone, the major glucocorticoid in rodents, is another glucocorticoid. Cortisol binds to the glucocorticoid receptor in the cytoplasm and the hormone-receptor complex is then translocated into the nucleus, where it binds to its DNA response element and modulates transcription from a battery of genes, leading to changes in the cell's phenotype. Only about 10% of circulating cortisol is free. The remaining majority circulates bound to plasma proteins, particularly corticosteroid-binding globulin (transcortin). This protein binding likely decreases the metabolic clearance rate of glucocorticoids and, because the bound steroid is not biologically active, tends to act as a buffer and blunt wild fluctuations in cortisol concentration.

How to Check Cervical Mucus
How to Check Cervical Mucus samer kareem 2,689 Views • 2 years ago

How to Check Cervical Mucus

Cirrhosis - causes, symptoms, diagnosis, treatment, pathology
Cirrhosis - causes, symptoms, diagnosis, treatment, pathology samer kareem 2,032 Views • 2 years ago

Hepatitis and chronic alcohol abuse are frequent causes. Liver damage caused by cirrhosis can't be undone, but further damage can be limited. Initially patients may experience fatigue, weakness, and weight loss. During later stages, patients may develop jaundice (yellowing of the skin), gastrointestinal bleeding, abdominal swelling, and confusion. Treatments focus on the underlying cause. In advanced cases, a liver transplant may be needed.

Blind loop syndrome
Blind loop syndrome samer kareem 4,676 Views • 2 years ago

Blind loop syndrome (BLS), commonly referred to in the literature as small intestinal bacterial overgrowth (SIBO) or bacterial overgrowth syndrome (BOS), is a state that occurs when the normal bacterial flora of the small intestine proliferates to numbers that cause significant derangement to the normal physiological ...

Plate and screwed fixation of Foot
Plate and screwed fixation of Foot samer kareem 1,642 Views • 2 years ago

A broken bone must be carefully stabilized and supported until it is strong enough to handle the body's weight and movement. Until the last century, physicians relied on casts and splints to support and stabilize the bone from outside the body. The advent of sterile surgical procedures reduced the risk of infection, allowing doctors to internally set and stabilize fractured bones. During a surgical procedure to set a fracture, the bone fragments are first repositioned (reduced) into their normal alignment. They are held together with special implants, such as plates, screws, nails and wires. Internal fixation allows shorter hospital stays, enables patients to return to function earlier, and reduces the incidence of nonunion (improper healing) and malunion (healing in improper position) of broken bones. The implants used for internal fixation are made from stainless steel and titanium, which are durable and strong. If a joint is to be replaced, rather than fixed, these implants can also be made of cobalt and chrome. Implants are compatible with the body and rarely cause an allergic reaction.

Fertilization and Implantation in human
Fertilization and Implantation in human samer kareem 3,124 Views • 2 years ago

Millions of sperms are deposited into the vagina during sexual intercourse. The sperms make their way through the cervix into the uterus and then on to the fallopian tubes. As they swim along this way their numbers decline. Only a few hundred sperm will get close to the egg. During the trip, sperm prepare themselves to meet the egg by subtle alterations of their heads and movement patterns. Once inside the fallopian tube, the sperm attracts the egg by releasing a chemical. The egg is surrounded by a protective covering called the zona pellucida, which allows only one sperm to penetrate it. Once inside the egg, the head of the fertilizing sperm releases its genetic contents, which fuses with the nucleus of the egg. Fertilisation is now complete. Sperm are able to survive for 2-3 days within the female's reproductive tract. The length of the time that a woman's egg can be fertilized by a man's sperm ranges from 12-24 hours.

new sepsis definitions
new sepsis definitions samer kareem 8,375 Views • 2 years ago

new sepsis definitions

Atrial fibrillation vs Atrial Flutter
Atrial fibrillation vs Atrial Flutter samer kareem 61,445 Views • 2 years ago

Atrial fibrillation vs Atrial Flutter

Lower lid Surgery
Lower lid Surgery samer kareem 1,274 Views • 2 years ago

Many people have baggy and puffy lower eyelids. Lower Eyelid Surgery (Blepharoplasty) is the removal of excess fat and tightening of the skin, which can drastically minimize the appearance of baggy and puffy lower eyelids that makes everyone look tired and worn down. This procedure is just as popular with men as with women. A sense of well-being and alertness is the reason why most people elect to have this procedure. Lower lids surgery is a procedure that the best results are achieved when performed earlier than later. Dr. Lee has performed this surgery on patients who are 18 yrs old to 82 yrs old- all very happy with their results. The cause of baggy and puffy lower eyelid is due to a combination of herniating fat, excessive skin, and edema (water retention).

Spleen Palpation
Spleen Palpation M_Nabil 24,472 Views • 2 years ago

Spleen Palpation

Better Vein Care
Better Vein Care Scott 11,615 Views • 2 years ago

Better Vein Care and Safer Injection

Carpopedal Spasm
Carpopedal Spasm Doctor 16,164 Views • 2 years ago

occur in this infant because of hypocalcemia

Tracheostomy Suctioning- Nursing Skills
Tracheostomy Suctioning- Nursing Skills nurse 92 Views • 2 years ago

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Tracheostomy Suctioning- Nursing Skills

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Tracheostomy Suctioning- Nursing Skills:

In this video we’re going to talk about suctioning a tracheostomy. You may need to do this before you do trach care or just because the patient requires suctioning. Make sure that you assess the patient before you start so that you know what their one sounds are, and what their oxygen saturation is. We love you guys! Go out and be your best selves today! And, as always, happy nursing!

Bookmarks:
0.05 Introduction to trach suctioning
0:21 Suction setup
0:42 Opening suction kit
1:55 Sterile water
2:13 Starting trach suctioning
2:00 Catheter insertion
3:00 Catheter pass #2
3:26 Listen to lungs
3:31 Outro

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Wound-closure technologies
Wound-closure technologies samer kareem 11,762 Views • 2 years ago

Wound-closure technologies are becoming less painful and more efficient at closing wounds

Laparoscopic pelvic urology
Laparoscopic pelvic urology Mohamed Ibrahim 16,789 Views • 2 years ago

Urological surgeons have become proficient at performing complex pelvic urological procedures, such as radical prostatectomy, using the laparoscopic approach. Declan Murphy and Daniel Moon share their experience of four less common procedures they have performed recently using laparoscopic techniques. These include: excision of a urachal cyst; partial cystectomy for endometriosis (combined endoscopic-laparoscopic approach); repair of an intra-peritoneal bladder rupture; and repair of a ureteric injury (combined endoscopic-laparoscopic approach).

Reduce the pain of vaccination in babies
Reduce the pain of vaccination in babies samer kareem 1,511 Views • 2 years ago

Anatomy of The Anterior Thorax
Anatomy of The Anterior Thorax Anatomy_Videos 8,953 Views • 2 years ago

Anatomy of The Anterior Thorax

Histology of Spleen
Histology of Spleen Histology 7,175 Views • 2 years ago

Histology of Spleen

Histology of Thymus
Histology of Thymus Histology 4,738 Views • 2 years ago

Histology of Thymus

Sinus infection
Sinus infection samer kareem 14,836 Views • 2 years ago

You're sneezing, coughing, and all stuffed up. It sounds and feels like a cold, alright. But as time goes on, you start to wonder. Is it turning into a sinus infection? They've got some things in common, but there are ways to tell them apart. The right ID lets your doctor get you the best treatment. What Is a Common Cold? It's an infection caused by a virus, a tiny living thing. You can't miss the symptoms: Nasal congestion Runny nose Post-nasal drip (drop-by-drop release of fluid from your nose into the back of the throat) Headache Fatigue You may also get a cough and a mild fever. The symptoms usually build, peak, and slowly disappear. Some medications can ease symptoms. For example, decongestants may decrease drainage and open the nasal passages. Pain relievers may help with fever and headache. Cough medicine may help, as well. Colds typically last from a few days to about a week or longer. Sometimes, a cold may cause swelling in the sinuses, hollow spaces in your skull that are connected to each other. The swelling can prevent the flow of mucus.

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