TWiP 23: Strongyloides sterocoralis, a most unusual parasite

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Created on Thursday, 03 March 2011 18:43

Written by Vincent Racaniello

Vincent and Dickson review the life cycle and pathogenesis of the world's most unusual parasite, Strongyloides stercoralis.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

• Free-living Strongyloides stercoralis adult (jpg)
• Small intestine with numerous sections of female S. stercoralis (jpg)
• Rhabditiform larva of S. sterocoralis (jpg)
• Filariform larva of S. stercoralis in skin (jpg)
• S. stercoralis buccal cavity (jpg)
• S. stercoralis life cycle (jpg)
• Letters read on TWiP 23

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TWiP #23 (74 MB .mp3, 103 minutes)

TWiP 22: Hookworm

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Created on Wednesday, 09 February 2011 02:58

Written by Vincent Racaniello

Vincent and Dickson discuss possibly the most socially and politically important nematode of humans, the hookworm Ancylostoma duodenale and Necator americanus.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

• Diagrams of adult hookworm (jpg)
• Ancylostoma duodenale adults (jpg)
• Hookworm mouth (jpg)
• Hookworm eggs (jpg)
• Hookworm life cycle (jpg)
• Letters read on TWiP 22

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TWiP #22 (70 MB .mp3, 97 minutes)

TWiP 21 - The giant intestinal worm, Ascaris lumbricoides

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Created on Tuesday, 18 January 2011 22:35

Written by Vincent Racaniello

Vincent and Dickson review the biology and pathogenesis of Ascaris lumbricoides, one of the largest nematodes to infect humans.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

• Ascaris lumbricoides adult female (top) and male (jpg)
• Ascaris lumbricoides life cycle (jpg)
• Child with distended abdomen due to Ascaris (jpg)
• Adult Ascaris removed from child in previous figure (jpg)
• Toxocara canis and Toxocara cati life cycle (jpg)
• Letters read on TWiP 21

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TWiP #21 (66 MB .mp3, 92 minutes)

TWiP 20 - The whipworm Trichuris trichiura

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Created on Wednesday, 15 December 2010 22:03

Written by Vincent Racaniello

Vincent and Dickson continue their discussion of nematodes with the whipworm Trichuris trichiura.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

• Trichuris trichiura adult female (jpg)
• Trichuris trichiura adult male (jpg)
• Trichuris trichiura in situ (jpg)
• Trichuris trichiura life cycle (jpg)
• Exploitation of the intestinal microflora by T. muris
• Letters read on TWiP 20

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TWiP #20 (64 MB .mp3, 89 minutes)

TWiP 19: Enterobius vermicularis, the pinworm

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Created on Saturday, 20 November 2010 16:44

Written by Vincent Racaniello

Vincent and Dickson move on to nematodes with a discussion of the pinworm Enterobius vermicularis.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

• Enterobius vermicularis adult female (jpg)
• Enterobius vermicularis in appendix (jpg)
• Enterobius vermicularis embryonated eggs (jpg)
• Enterobius vermicularis life cycle (jpg)
• Letters read on TWiP 19

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TWiP #19 (60 MB .mp3, 83 minutes)

TWiP 18: Cryptosporidium

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Created on Monday, 25 October 2010 21:38

Written by Vincent Racaniello

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

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TWiP #18 (58 MB .mp3, 80 minutes)

TWiP 17: Entamoeba histolytica

Details

Created on Wednesday, 06 October 2010 04:52

Written by Vincent Racaniello

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

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TWiP #17 (55 MB .mp3, 76 minutes)

TWiP 16: Giardia

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Created on Friday, 24 September 2010 03:18

Written by Vincent Racaniello

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

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TWiP #16 (57 MB .mp3, 79 minutes)

TWiP 15: Tryp the light fantastic

Details

Created on Thursday, 09 September 2010 17:23

Written by Vincent Racaniello

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

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TWiP #15 (60 MB .mp3, 87 minutes)

TWiP 14: Leishmania

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Created on Thursday, 12 August 2010 02:08

Written by Vincent Racaniello

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)

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TWiP #14 (61 MB .mp3, 85 minutes)