This Week in Parasitism
TWiP is a monthly netcast about eukaryotic parasites. Vincent Racaniello, Dickson Despommier, and Daniel Griffin, science Professors from Columbia University, deconstruct parasites, how they cause illness, and present a case study each episode for your solution.

Vincent and Dick talk about the anatomy and life cycle of beef and pork tapeworms, and why House was wrong about neurocysticercosis.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

  • Taenia saginata life cycle (jpg)
  • Taenia saginata adult (jpg)
  • Taenia saginata scolex (jpg)
  • Taenia saginata gravid proglottid (jpg)
  • Taenia solium life cycle (jpg)
  • Taenia solium adult (jpg)
  • Taenia solium scolex (jpg)
  • Facial cancer in Tasmanian devils (thanks PhogDog!)

Science Picks

Dickson Peace through vaccine diplomacy by Peter Hotez
Vincent Parasite Rex by Carl Zimmer

Direct download: TWiP006.mp3
Category:Science -- posted at: 9:30pm PST

Vincent and Dick discuss the nurse cell, a unique structure formed in the host muscle by Trichinella species.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Weekly Science Picks

Dickson Every Living Thing by Rob Dunn

Direct download: TWiP005.mp3
Category:Science -- posted at: 7:30pm PST

Vincent and Dick trace the life cycle of Trichinella spiralis in an infected host.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

  • Trichinella life cycle (jpg)
  • Newborn larva entering muscle cell (jpg)
  • Adult T. spiralis in columnar epithelial cell (jpg)
  • Adult female T. spiralis (jpg)
  • Infective first stage T. spiralis larva in Nurse cell in muscle tissue (jpg)
  • Adult female T. spiralis with fully formed larvae in uterus (jpg)
  • Adult male T. spiralis with claspers on tail (jpg)
  • Clinical correlations in trichinosis (jpg)
  • Letters read on TWiP #4

Weekly Science Picks

Dickson David Scharf's pictures of microbial life
Vincent
The Nobel Laureate Meetings at Lindau

Direct download: TWiP004.mp3
Category:Science -- posted at: 9:00am PST

Vincent and Dick distinguish among intracellular and extracellular parasites, then discuss the history and general characteristics of Trichinella spiralis.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Weekly Science Picks

Dickson The Doctor and the Devils

Direct download: TWiP003.mp3
Category:Science -- posted at: 3:30pm PST

Vincent and Dick classify parasites according to whether or not they are transmitted by a vector, then consider the implications of long-lived parasites.

Host links: Vincent Racaniello and Dickson Despommier

Direct download: TWiP002.mp3
Category:Science -- posted at: 5:30pm PST

Vincent and Dick provide an overview of parasites and parasitism.

Host links: Vincent Racaniello and Dickson Despommier

Weekly Science Picks

Dick The Black Cloud by Fred Hoyle
Vincent Parasitic Diseases by Despommier et al.

Direct download: TWiP001.mp3
Category:Science -- posted at: 4:00am PST