According to reports, there were 40,000 tigers in India a century ago. The country is home to 40% of the world's tigers, with 23 tiger reserves in 17 states. The 2006 count found a steep fall in India's tiger population to 1,411 from 3,642 animals in a federal census in 2002. Poaching and urbanisation are blamed for the decline in tiger numbers in the country.
Cerebrospinal fluid (CSF) analysis is a group of laboratory tests that measure chemicals in the fluid that surrounds and protects the brain and spinal cord. The tests may look for proteins, sugar (glucose), and other substances. A sample of CSF is needed. A lumbar puncture, also called a spinal tap, is the most common way to collect this sample. Less common ways to take a fluid sample include: 1  Cisternal puncture.  Removal of CSF from a tube that is already in the CSF, such as a shunt, ventricular drain, or pain pump.
Von Willebrand factor (VWF) testing is used to investigate excessive or recurrent bleeding episodes or a personal or family history of excessive bleeding. Testing is used to help diagnose von Willebrand disease (VWD) and distinguish between the various types of VWD. VWF is a protein, one of several components of the coagulation system that work together to stop bleeding and form a stable blood clot.