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This Week in Parasitism — Health & Fitness
This Week in Parasitism

TWiP is a monthly netcast about eukaryotic parasites. Vincent Racaniello and Dickson Despommier, science Professors from Columbia University, deconstruct parasites, how they cause illness, and how you can prevent infections.

Copyright: © Vincent Racaniello 2022

Latest Episodes:

TWiP #18 - Cryptosporidium Oct 27, 2010

Show notes

Vincent and Dickson discuss the intracellular parasite Cryptosporidium, which causes diarrheal disease in most mammalian species.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Cryptosporidium parvum electron micrograph (jpg)
Cryptosporidium parvum meronts (jpg)
Cryptosporidium parvum life cycle (jpg)
Cryptosporidium page at CDC
Letters read on TWiP 18

Contact

Send your questions and comments (email or mp3 file) to twip@twiv.tv.

Subscribe (free)

Click here to receive an email notification when a new episode of TWiP is published.

TWiP #17 - Entamoeba histolytica Oct 06, 2010

Show notes

Vincent and Dickson continue their discussion of protozoan parasites that cause diarrhea with a review of amebic dysentery caused by Entamoeba histolytica.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Entamoeba histolytica cyst (jpg)
Entamoeba histolytica trophozoite (jpg)
Entamoeba histolytica life cycle (jpg)
Galactose prevents attachment of amoebae to cells (jpg)
Entamoeba histolytica life cycle (jpg)
Charcot-Leyden crystal (jpg)
Letters read on TWiP 17

Contact

Send your questions and comments (email or mp3 file) to twip@twiv.tv.

Subscribe (free)

Click here to receive an email notification when a new episode of TWiP is published.

TWiP #16: Giardia Sep 24, 2010

Show notes

Vincent and Dickson review the life cycle and pathogenesis of the flagellated protozoan parasite Giardia lamblia.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Giardia lamblia trophozoite (jpg)
Giardia lamblia cyst (jpg)
Giardia lamblia life cycle (jpg)
Heather's view of T. canis life cycle (pdf)
Letters read on TWiP 16

TWiP #15: Tryp the light fantastic Sep 09, 2010

Show notes

Vincent and Dickson discuss the life cycle and pathogenesis of the protozoan parasite Trypanosoma.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Metacyclic trypanomastigote (jpg)

Tsetse fly (jpg)

T. brucei life cycle (jpg)

T. brucei parasitemia (jpg)

Kissing bug nymph (jpg)

T. cruzi life cycle (jpg)

Letters read on TWiP 15

TWiP #14 - Leishmania Aug 12, 2010

Show notes

Vincent and Dickson consider the life cycle and pathogenesis of the protozoan parasite Leishmania.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

L. braziliensis life cycle (jpg)

L. donovani life cycle (jpg)

L. tropica life cycle (jpg)

L. major lesion (jpg)

Transgenic mosquito delivers Leishmania vaccine (thanks, Geoffrey)

Plasmodium falciparum accompanied human expansion out of Africa (thanks, Prasad)

Who speaks for the guinea worm? (thanks, Michael)

Letters read on TWiP 14

TWiP #13 - Toxoplasmosis Jul 15, 2010

Show notes

Vincent and Dickson continue their discussion of the obligate intracellular protozoan Toxoplasma gondii with a consideration of the clinical consequences of infection and pathogenesis.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Isopod fish parasites (thanks, Kevin!)

Farmscraper on Word Spy (thanks, Mitchell!)

Toxoplasma and personalities (thanks, Greg!)

Science podcast (July 2) on parasites and intelligence (transcript - thanks, Jim!)

Letters read on TWiP 13

TWiP #12 - Toxoplasma gondii Jun 18, 2010

Show notes

Vincent and Dickson introduce the obligate intracellular protozoan Toxoplasma gondii, one of the most successful parasites on earth.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Global clinical burden of malaria (PLoS Medicine)

T. gondii sporulated oocysts (jpg)

T. gondii tachyzoites in parasitophorous vacuole (jpg)

T. gondii life cycle (jpg)

Insect bioterrorism conference (thanks, Don!)

Parasite of the Day (thanks, Douglas!)

World Science Festival

Letters read on TWiP 12

TWiP #11 - One times three million Jun 02, 2010

Show notes

Vincent and Dickson continue their discussion of malaria, with emphasis on clinical aspects of the disease.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

The quest for a malaria vaccine (Meet the Scientist 49)

Science issue on malaria and tuberculosis

Malaria pathogenesis (pdf)

Malaria pathogenesis (jpg)

Letters read on TWiP 11

TWiP #10 - Plasmodium life cycle May 20, 2010

Show notes

Vincent and Dickson trace the life cycle of Plasmodium in a mosquito and in a human host.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Mosquito cycle - sporogany (jpg)
Plasmodium falciparum cycle (jpg)
Plasmodium vivax cycle (jpg)
Plasmodium falciparum ring forms and gametocytes in blood (jpg)
Plasmodium stages (jpg)
Letters read on TWiP 10

TWiP #9 - Mala aria May 06, 2010

Show notes

Vincent and Dickson move on to protozoan parasites with a discussion of the early history of malaria.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

Malaria history at CDC
Radio New Zealand show on hookworms (thanks James!)
Tapeworm brain infection serious health concern (thanks Jim!)
Pig farmers try to limit pork tapeworm spread (thanks Gopal!)
Bizarre tongue-eating fish parasite (thanks Arsen!)
Letters read on TWiP 9

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