Geographical widespread of two lineages of Taenia solium due to human migrations: Can population genetic analysis strengthen this hypothesis?

Martínez‐Hernández, Fernando; Jiménez-González, Diego Emiliano; Chenillo, Paola; Alonso‐Fernández, Cristina; Maravilla, Pablo; Flisser, Ana

doi:10.1016/j.meegid.2009.09.005

Cited by 30 publications

(30 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The analysis regarding continents showed that π and θ were highest in the European population and lowest in the Libyan population ( Figure 4, values inside of the continent image). Information on the π and θ data for human intestinal parasites is rather limited: for helminths, these values range from 0.004 to 0.025 for π and from 0.005 to 0.02 for θ [23][24][25]; for Giardia lamblia, π ranges from 0 to 0.07 [26]; and for Entamoeba histolytica, these values are π = 0.004 and θ = 0.51 (Martinez-Hernandez F, unpublished data).…”

Section: Resultsmentioning

confidence: 99%

Suitability of internal transcribed spacers (ITS) as markers for the population genetic structure of Blastocystis spp

Villalobos

Orozco-Mosqueda

Lopez-Perez

et al. 2014

Parasites & Vectors

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Suitability of internal transcribed spacers (ITS) as markers for the population genetic structure of Blastocystis spp

Villalobos

Orozco-Mosqueda

Lopez-Perez

et al. 2014

Parasites & Vectors

Self Cite

View full text Add to dashboard Cite

show abstract

“…parasite assemblages in modern humans did not reach the Western Hemisphere until European colonization after the 1500s. This involved multiple events of introduction and establishment (T. saginata and T. solium only) on local scales, followed by broader dissemination that has been observed (Martinez-Hernandez et al, 2009;Hoberg, 2010).…”

Section: Cestodesmentioning

confidence: 96%

“…Subsequently, it was found that this story is considerably more complex, a picture now being revealed by multilocus molecular phylogenies for Taenia (Lavikainen et al, 2008(Lavikainen et al, , 2010Knapp et al, 2011;Nakao et al, 2013a;Terefe et al, 2014) in conjunction with population-level explorations of phylogeography and gene flow among species and populations (e.g., Nakao et al, 2002;Martinez-Hernandez et al, 2009;Michelet et al, 2010;Yamane et al, 2012). Recognition of an intricate history among large carnivore hosts and geographic regions is further highlighted by the cryptic diversity found among cestodes of canids and ursids (Lavikainen et al, 2010Haukisalmi et al, 2011), northern felids (Lavikainen et al, 2013), and hyaenids (Terefe et al, 2014).…”

Section: Cestodesmentioning

confidence: 99%

“…During the 15th and 16th centuries, trade routes linking Africa, the Americas (Peru and Mexico), the Philippines, and southern Asia were especially prominent in the dispersal, introductions, and gene flow among populations of T. solium (Martinez-Hernandez et al, 2009). A specific genotype that is most commonly observed in the Americas is actually derived from Africa, whereas a second major genotype appears restricted to Asia (Nakao et al, 2002;Martinez-Hernandez et al, 2009).…”

Section: Cestodesmentioning

confidence: 99%

See 1 more Smart Citation

Anthropogenics: Human Influence on Global and Genetic Homogenization of Parasite Populations

Zarlenga¹,

Hoberg²,

Rosenthal³

et al. 2014

Journal of Parasitology

View full text Add to dashboard Cite

“…On the other hand, ITS1-5.8S rRNA-ITS2 is a good marker for genetic diversity research (19,20). Molecular analysis performed by Kleina et al (21) and Cepicka et al (17) with this molecular marker showed that the genus Tetratrichomonas is more diverse than previously known, with numerous robust host-specific and monophyletic groups that probably represent new species, and because of its wide host range and high level of species specificity, this makes the genus Tetratrichomonas a valuable model for studying parasite evolution.…”

Section: Case Reportsmentioning

confidence: 99%

New Tetratrichomonas Species in Two Patients with Pleural Empyema

et al. 2013

Self Cite

View full text Add to dashboard Cite

Two unusual occurrences of pleural trichomonosis due to a new Tetratrichomonas species previously reported but not named were confirmed. In one patient, Trichomonas tenax and a Tetratrichomonas species were also detected in the oral cavity by molecular methods. We suggest that this new Tetratrichomonas species be named Tetratrichomonas empyemagena. CASE REPORTSC ase 1 is that of a 54-year-old male from Mexico City with uncontrolled type 2 diabetes who was admitted to the hospital with a history of 1 week of malaise, poor food intake, chills, and fever after developing right thoracic pain, dyspnea, and fatigue; he denied any history of choking or trauma in recent days. Dullness on percussion and decreased breathing sounds were noted over his right chest. His blood pressure was 120/50 mmHg, his heart rate was 120 beats/min, his respiratory rate was 30 breaths/min, his white blood cell count was 45,000/mm 3 , his platelet count was 565,000/mm 3 , his glucose level was 503 mg/dl, his albumin level was 1.6 g/dl, and his arterial HCO 3 level was 5.6 meq/liter. An initial chest X-ray and computed tomography (CT) scan showed a right pleural effusion that was drained (700 ml), and the pleural fluid was sent for microbiological analysis. Its macroscopic appearance was that of a brownish purulent fluid. Microscopic examination revealed Gram-positive cocci and Gram-negative bacilli, as well as numerous motile and flagellated protozoa that were initially identified as trichomonads because of their morphological characteristics (form, size, and motility). These flagellates were not cultured, and their identification was confirmed by microscopic examination of an empyema fluid smear. Samples were mixed with whole blood at 1:3, spread onto glass slides, air dried, methanol fixed, and stained with Giemsa stain (Fig. 1A and B). Some aliquots of empyema fluid were stored at Ϫ20°C for molecular analysis. Bacteriological cultures of the fluid were performed for aerobic and anaerobic microorganisms, yielding Staphylococcus auricularis, but no bacilli were identified until after PCR sequencing of an empyema fluid sample. A Prevotella species was demonstrated by using universal primers for the 16S rRNA gene (1). Antibiotic therapy with metronidazole and piperacillin-tazobactam was administered.Case 2 is that of a 33-year-old man from Mexico City with a history of smoking and alcohol consumption who was admitted to the hospital with a 2-week nonproductive cough and chills, dyspnea, and left pleural chest pain. His blood pressure was 70/40 mmHg, his heart rate was 150 beats/min, and his respiratory rate was 40 breaths/min. During subsequent days, fever and diaphoresis were added to the clinical course, as well as worsening of dyspnea until he developed acute respiratory failure and septic shock. Thorax auscultation revealed bilateral crackles and diminished breath sounds on the left side; he was placed on mechanical ventilation. A chest X-ray and a thorax CT scan showed a right pneumothorax and left pleural effusion. He underwent bilater...

show abstract

Geographical widespread of two lineages of Taenia solium due to human migrations: Can population genetic analysis strengthen this hypothesis?

Cited by 30 publications

References 27 publications

Suitability of internal transcribed spacers (ITS) as markers for the population genetic structure of Blastocystis spp

Suitability of internal transcribed spacers (ITS) as markers for the population genetic structure of Blastocystis spp

Anthropogenics: Human Influence on Global and Genetic Homogenization of Parasite Populations

New Tetratrichomonas Species in Two Patients with Pleural Empyema

Contact Info

Product

Resources

About