Podcasts about trypanosome

The TWiP team solves the case of the Traveler to Tanzania with a Purple Lesion, and discuss Mosquirix, the first vaccine approved for Plasmodium parasites. Hosts: Vincent Racaniello, Dickson Despommier, Daniel Griffin, and Christina Naula Subscribe (free): iTunes, Google Podcasts, RSS, email Links for this episode PWB on Facebook, Instagram, Twitter Historic malaria vaccine (Nature) Efficacy and safety of RTS,S/AS01 (Lancet) Letters read on TWiP 199 Become a patron of TWiP Case Study for TWiP 199 Gentleman in 40s, repeated intestinal issues, diagnosed with Giardia and treated, a year later again, again not feeling well. Stool testing shows Blastocystis and Endolimax nana. Lives in NYC area, single, active socially with different partners, no other medical problems, does take PREP for AIDS. Exam and labs normal except for stools. HIV negative. Treated with metronidazole, no impact on symptoms. Coincides with successful encounters.   Send your case diagnosis, questions and comments to twip@microbe.tv Music by Ronald Jenkees

TWiP solves the case of the Adventurous Eater with Areas of Swelling, and discusses an experimental Trypanosoma vivax vaccine comprising an invariant flagellum antigen. Hosts: Vincent Racaniello, Dickson Despommier, Daniel Griffin, and Christina Naula Download TWiP #197 (39 MB .mp3, 64 minutes) Subscribe (free): iTunes, Google Podcasts, RSS, email Links for this episode PWB on Facebook, Instagram, Twitter Experimental T. vivax vaccine (Nature) Letters read on TWiP 197 Become a patron of TWiP Case Study for TWiP 197 Gentleman in late 20s, has for weeks had watery diarrhea that is not getting better. Recently took trip to Oaxaca, Mexico. Stayed at nice hotel, all fruits, vegetables, salads well cleaned. Always ate at hotel. Developed diarrhea there. Went with three others, stayed at same place. No prior surgeries, no family history, no medications, no toxic habits. Daniel recommends one test and that gives diagnosis and therapy and he resolves.   Send your case diagnosis, questions and comments to twip@microbe.tv Music by Ronald Jenkees

The TWiP professors solve the case of the Baby With Pericardial Effusion, and discuss whether the flagellate without a flagella, Dientamoeba fragilis, causes human illness. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiP. Links for this episode: Patients with Dientamoeba fragilis infection (Am J Trop Med Hyg) Hero: Dr. Eloise B. Cram Image credit Letters read on TWiP 162 Case Study for TWiP 162 A fresh case. Woman in late 30s born in Palestine, moved to NY. Presented for care with sore throat, swollen lymph nodes. Married Lebanese man, he’s still there, travel back in forth. Had been in Lebanon for 3 weeks before illness. Ate special raw meat dish while in Lebanon. No other animal exposure. Small children at home, works in office. No medical/surgical history, no meds. On exam, has posterior cervical lymphadenopathy. Otherwise normal exam. HIV negative. Low grade fever. Send your case diagnosis, questions and comments to twip@microbe.tv Music by Ronald Jenkees

The TWiPsters solve the case of the Brazilian Immigrant With Heart Problems, and describe how genome organization controls trypanosome antigenic variation. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiP. Links for this episode: Trypanosome genome organization and antigenic variation (Nature) Hero: Arthur Looss Letters read on TWiP 161 Case Study for TWiP 161 Daniel was asked to see 30 yo female from Bolivia, had to travel back during 3rd trimester. Was there for most of 3rd trimester. Child born in US, pericardial effusion, ascites, moderate PDA. Heart function is ok. Woman was healthy, no issues during pregnancy. Baby’s  white count elevated, diagnostic evaluation. It is a parasite. Send your case diagnosis, questions and comments to twip@microbe.tv Music by Ronald Jenkees

The TWiPsids solve the case of the Guatemalan Positive for Rhinovirus, and reveal how to kill all African trypanosomes with a primate apolipoprotein. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Become a patron of TWiP. Links for this episode: APOLs kill all African trypanosomes (Nat Micro) Trypanocidal properties of APOL1 on TWiP 85: Channeling tryps Letters read on TWiP 142 Case Study for TWiP 142 Woman in 50s, immigrant from rural area with limited resources. Admitted to hospital with iron deficient anemia and eosinophilia. In US. Sent for colonoscopy. Note long slender serpiginous motile object, recovered, 4.5 cm long, one end slender, other large and curled but not blunt. Send worm to parasitology lab for identification. What might fit description? Is this usually associated with eosinophilia? What about anemia, is severe or mild? Would this person have come from outside the US to acquire this, or could they have acquired the infection in the US. Send your case diagnosis, questions and comments to twip@microbe.tv Music by Ronald Jenkees

Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin The prolific podcast-shedding Hosts solve the case of the Global Health Intern with a snakelike lesion on her foot, and reveal the role of a single-stranded DNA binding protein in differentiation of trypanosomes. Become a patron of TWiP. Links for this episode: RPA protein and differentiation of T. cruzi (PLoS NTD) Image credit Letters read on TWiP 124 Case Study for TWiP 124 28 yo male from referral hospital near thai-burma border. Fever and chills 2 days, feels poorly, small amount of dark urine. Severe shaking chills, 1x per day, no rash. No diarrhea, difficulty breathing. Seen by local health care volunteer, went to hospital then tertiary hospital in Bangkok. Exposure history to pigs, dogs, insects, etc. Involved in timber industry and farming, sleeping out at night with no cover, clothes and sandals. No meds. Not married, family lives with him. Family is fine. Sleep in dwelling but no screens. No toxic habits, HIV negative, sexually active but not brothels. High fever, low bp, rapid heart rate, breathing rapidly, scleral icterus, dry mucus membranes, neck supple, lungs clear. 2/6 systolic murmur. Abdomen soft but tender, enlarged liver and spleen. Many cuts, bruises, bug bites. Labs: low platelets, low hematocrit, low glucose. Blood smear: abnormal, 5-10% infected RBCs with multiple band forms.  Send your case diagnosis, questions and comments to twip@microbe.tv

Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin The TWiPanosome docs solve the case of the Mali Man with Profuse Diarrhea, and review the presence of Trypanosoma cruzi in vectors, canids, and humans along the Texas-Mexico border. Become a patron of TWiP. Links for this episode: T. cruzi in vectors, canids, humans at Mexican border (PLoS NTD) Tetracapsuloides bryosalmonae (Wikipedia) T. cruzi in US (Clin Micro Rev) Image credit Letters read on TWiP 121 This episode is sponsored by CuriosityStream, a subscription streaming service that offers over 1,400 documentaries and non­fiction series from the world's best filmmakers. Get unlimited access starting at just $2.99 a month, and for our audience, the first two months are completely free if you sign up at curiositystream.com/microbe and use the promo code MICROBE. Case Study for TWiP 121 Back to Peru. 55 yo female from highland central valley area near Cuzco. Works in farming, no prior skin lesions but has multiple hypopigmented scars on exposed extremities (trauma during working), now reports many years of bloody nasal discharge. Seen in Lima by Daniel in outpatient clinic. No other medical problems, no surgeries, no allergies, everyone in family fine, husband and kids. Still working. No travel except to see doctor. Exam in right nare: ulcerated lesion inside nose, muco-cutaneous lesion. Simple test will decide. No anemia, no fever. Not eosinophilic, labs normal, HIV negative. Send your case diagnosis, questions and comments to twip@microbe.tv

Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Guest: Michael Libman Michael returns to help the TWiP trio solve the case of the Delusional African Expatriate, and discuss the association of natural and induced antibodies in mice with differential susceptibility to secondary cystic echinococcosis. Links for this episode: T. brucei life cycle (pdf) Natural and induced antibodies in echinococcosis (Immunobiol) The collaborative cross Letters read on TWiP 104  Case study for TWiP 104 This week's case involves a young man in his thirties, admitted in hospital in Anchorage AK in early June. Chief complaint, severe muscle pain and tenderness. Usually healthy guy, 1 week ago had bad case of diarrhea with belly pain and vomiting, lasted a full week. Now has fever. Concerned because wife now is having diarrhea. Unremarkable history, unknown family history. HIV negative. All childhood vaccinations. Does not eat raw meat. No meds, does seasonal work, social drinker. Came back from successful hunt, got a black bear. Dressed in field, cooked at home really well. Wife also ate bear meat. Bear meat is in freezer. No vegetables. Also eats salmon which he caught the previous season, then frozen. Drinks water from the stream when he hunts. Physical exam: hot, 38.5, bp 115/75, pulse 105, breathing comfortably. Anxious, swelling around both eyes. Sclera not noted. Labs: WBC elevated 14,000, 30% eosinophils; chemistries fine; muscle enzymes LDH, CK elevated. Send your diagnosis to twip@microbe.tv Send your questions and comments to twip@microbe.tv

Vincent, Dickson, and Daniel review new insight into antigenic variation in trypanosomes, reveal the difficult solution to the last case study, and present another mystery for your solving. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Links for this episode: Pinworm (CDC) Pinworm on TWiP #19 Dynamics of antigenic variation in T. brucei (Science) Image credit Letters read on TWiP 87 Contact Send your questions and comments (email or mp3 file) to twip@twiv.tv Subscribe Subscribe to TWiP (free) in iTunes, by the RSS feed or by email

Vincent, Dickson, and Daniel explain how trypanolytic factor forms membrane channels to lyse trypanosomes, and present a new case study. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Links for this episode: Human trypanolytic factor forms channels (PNAS) Human paragonimiasis (MMWR) Don't eat raw crawfish Daniel and Dickson in studio (jpg) Image credit Letters read on TWiP 85 Contact Send your questions and comments (email or mp3 file) to twip@twiv.tv Subscribe Subscribe to TWiP (free) in iTunes, by the RSS feed or by email

Vincent, Dickson, and Daniel consider the delivery of anti-trypanosome nanobodies to the tsetse fly via a bacterial symbiont, and present a new case study. Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin Links for this episode: Delivery of a functional nanobody to tsetse flies (Microb Cell Fact) Nanobodies (Wikipedia) V.B. Wigglesworth (Wikipedia) VB Nimble, VB Quick Knott test Mazzotti reaction Image credit Letters read on TWiP 84 Contact Send your questions and comments (email or mp3 file) to twip@twiv.tv Subscribe Subscribe to TWiP (free) in iTunes, by the RSS feed or by email  

Shulamit Michaeli talks about how the Trypanosoma brucei kinase PK3 inhibits new protein production in response to endoplasmic reticulum stress.

Hosts: Vincent Racaniello Dickson Despommier, and Sagi Shapira Vincent, Dickson, and Sagi discuss evidence that the pathogen Trypanosoma brucei undergoes meiosis and sexual reproduction. Links for this episode: Meiosis and haploid gametes in T. brucei (Curr Biol) Meiosis (Wikipedia) Letters read on TWiP 68 Contact Send your questions and comments (email or mp3 file) to twip@twiv.tv Subscribe Subscribe to TWiP (free) in iTunes, by the RSS feed or by email

Vincent and Dickson review how sickle cell microRNAs contribute to malaria resistance, and inhibition of innate immune responses by an enzyme from trypanosomes. Links for this episode: microRNAs involved in sickle cell resistance to Plasmodium (Cell Host Microbe) Trypanosome adenylate cyclases modulate innate immune response (Science) Letters read on TWiP 43 Contact Send your questions and comments (email or mp3 file) to twip@twiv.tv.

Vincent and Dickson discuss immune evasion by the cruzain protease of T. cruzi, and novel tetraspanin antigens of S. japonicum.