• Home
  • Write for Us
  • Hire Us
  • Ask Us
  • Contact Us

Wednesday, March 6, 2013

How does HIV spread? Why can't the body kill the HIV virus? How does AIDS occur? What is the difference between HIV 1 and HIV 2? Can HIV infect brain cells? read to find out...

Routes of transmission of HIV:

HIV is transmitted from person to person by:

Sexual transmission (>75%):
More common among the male homosexuals than heterosexuals
  1. Vaginal sex, Anal sex
  2. Oral sex
Common routes of transmission of HIV
Parenteral transmission:
  1. By infected blood and blood products
  2. Contaminated needles, syringes, and surgical instrument
  3. I/V drug abusers
Vertical transmission:
  1. Trans-placental
  2. During birth / through birth canal
  3. Breast feeding
Probable other methods:
  1. Through donated organs and tissues such as organ transplantation via donated semen
  2. Any skin piercing - injection, ear, nose piercing, tattooing, acupuncture
  3. By sharing razors, combs, toothbrush (rarely)

Diabetic Foot
Diabetic Foot

Introduction to diabetic foot

The foot is a frequent site of complication in long-standing diabetic patients. The patients usually come with diabetic foot gangrene, ie, necrosis of the foot with super-added putrefaction (The process of decay or rotting in a body). And in majority of the cases the final treatment is amputation of the foot.

What are the causes of Diabetic Foot?

Diabetic foot is mainly caused by injury to the foot followed by infection in the presence of diabetic complications like diabetic neuropathy and diabetic vascular disease.The injury may go unnoticed because most of the time it is a small injury and also because the pain can not be felt due to nerve damage (neuropathy).
Diabetic Neuropathy and Diabetic Vascular Disease
Diabetic Neuropathy and Diabetic Vascular Disease

Due to diabetic vascular diseases (diabetic macrovascular disease) in diabetes the blood supply to the foot decreases in considerable amount (ischaemia). 

Diabetic neuropathy also contributes to the formation of diabetic gangrene or ulcer because healing is delayed or hampered in areas with damaged nerve supply (neuropathy).
The extent to which either ischaemia or neuropathy develops varies from person to person.