Parasitic Diseases Commons^™

Granulin Secreted By The Food-Borne Liver Fluke Opisthorchis Viverrini Promotes Angiogenesis In Human Endothelial Cells, Brandon Haugen, Shannon Karinshak, Victoria H. Mann, Anastas Popratiloff, Alex Loukas, Paul J. Brindley, Michael J. Smout

Microbiology, Immunology, and Tropical Medicine Faculty Publications

The liver fluke Opisthorchis viverrini is a food-borne, zoonotic pathogen endemic to Thailand and adjacent countries in Southeast Asia. The adult developmental stage of the O. viverrini parasite excretes and secretes numerous proteins within the biliary tract including the gall bladder. Lesions caused by the feeding activities of the liver fluke represent wounds that undergo protracted cycles of healing and re-injury during chronic infection, which can last for decades. Components of the excretory/secretory (ES) complement released by the worms capably drive proliferation of bile duct epithelial cells and are implicated in establishing the oncogenic milieu that leads to bile duct …

Controlled Human Hookworm Infection: Accelerating Human Hookworm Vaccine Development, David Diemert, Doreen Campbell, Jill Brelsford, Caitlyn Leasure, Guangzhao Li, Naji Younes, +Several Additional Authors

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Background

Controlled human hookworm infection (CHHI) is a central component of a proposed hookworm vaccination-challenge model (HVCM) to test the efficacy of candidate vaccines. Critical to CHHI is the manufacture of Necator americanus infective larvae (NaL3) according to current Good Manufacturing Practice (cGMP) and the determination of an inoculum of NaL3 that is safe and reliably induces patent infection. Methods

cGMP-grade NaL3 were produced for a phase 1 trial in 20 healthy, hookworm-naïve adults in the United States, who received either 25 or 50 NaL3. Participants were monitored for 12–18 weeks postinfection for safety, tolerability, …

Transplantation Of Schistosome Sporocysts Between Host Snails: A Video Guide., Gabriel Mouahid, Anne Rognon, Ronaldo De Carvalho Augusto, Patrick Driguez, Kathy Geyer, Shannon Karinshak, Nelia Luviano, Victoria Mann, Thomas Quack, Kate Rawlinson, George Wendt, Christoph Grunau, Hélène Moné

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Schistosomiasis is an important parasitic disease, touching roughly 200 million people worldwide. The causative agents are different Schistosoma species. Schistosomes have a complex life cycle, with a freshwater snail as intermediate host. After infection, sporocysts develop inside the snail host and give rise to human dwelling larvae. We present here a detailed step-by-step video instruction in English, French, Spanish and Portuguese that shows how these sporocysts can be manipulated and transferred from one snail to another. This procedure provides a technical basis for different types of ex vivo modifications, such as those used in functional genomics studies.

Guinea : Malaria, Madeleine Jacobson

Global Public Health

This brief analyzes malaria in Guinea and its impacts on individuals and the society. It consists of a geographic and demographic presentation of Guinea which includes information about its location, climate, natural resources, ethnic groups, politics and social internal and external challenges where human trafficking, lack of healthcare and refugees are discussed. The brief analyzes malaria´s transmission, diagnosis, preventions and a suggestion for an intervention.

Malaria is a vector-borne disease, which means that living organisms that can transmit infectious diseases between humans or from animals to humans, spread malaria. 70 percent of all malaria deaths occur in age years, but …

Comoros: Malaria, Elizabeth Rennolds

Global Public Health

After human settlement and migration took place throughout the world, a disease known as malaria broke out within many countries. Malaria is a disease that comes from a fever where a parasite takes over one’s red blood cells with mosquitoes being the ones that transmit this disease. The symptoms of this disease are as follows: fever (typical cycles of fever, chills, sweating), joint pain, headaches, vomiting, convulsions, and coma. Malaria is a big issue in the Comoros, an island which can be seen in the Indian Ocean between the eastern coast of Africa and Madagascar, because of the many occurrences …

Myanmar: Malaria, Michelle Grevengoed

Global Public Health

Myanmar is an underdeveloped country that struggles with the problem of lack of medical access and expensive healthcare. The endemic of Malaria has been going on for several years in this country and many efforts have been made to try and decrease the Public Health issue. However, Myanmar still has the highest number of Malaria-related deaths. The Myanmar government is continuously working at improving the healthcare system to help with the Malaria endemic. However, the poor country still continues to struggle with this issue. The parasite, P. falciparum, has been an ongoing issue since it is resistant to the …

Chikungunya: India, Allison Harvey

Global Issues in Public Health

A communicable disease is an infectious disease, transmissible by direct contact with an affected individual or the individual’s discharges, or by indirect means. The more direct contact people have, the more disease spreads explaining why larger populations have more outbreaks of communicable diseases. India, in particular, has one of the biggest population sizes and makes them susceptible to those diseases. Many can be fatal. However, other diseases, such as chikungunya, are also dangerous viruses that put specific populations at risk for health problems if infected. With chikungunya symptoms such as fever or rashes may develop. Some symptoms such as joint …

Malaria: Sub-Saharan Africa, Caroline Morris

Global Issues in Public Health

Sub-Saharan Africa is the large area situated south of the Saharan desert. It is considered one of the poorest regions in the world; the territory faces many challenges in respect to public health. One of the most important issues that sub-Saharan Africa faces is malaria. It is spread through the female Anopheles mosquito. Environmental factors of sub-Saharan Africa heavily influence the rates of incidence in the region due to high populations of mosquitoes. Social determinants of health affect risk in the sub-Saharan populations. Little access to healthcare, built environment, and education all impact incidence of malaria in the region. Children …

Antibody Dependent Enhancement Of Visceral Leishmaniasis, Alan K. Mcnolty

All Master's Theses

Leishmaniasis is a parasitic disease caused by protozoans of the genus Leishmania. This vector-born disease, transmitted by biting phlebotomine sandflies, typically manifests in one of three ways. The cutaneous form of the disease is characterized by localized lesions of the skin and is by far the most common manifestation. The visceral form of the disease is caused by parasitic infiltration of internal organs, particularly the spleen, liver, and bone marrow. The mucocutaneous form is caused by parasitic infection of the mucosa in the nose or mouth. While cutaneous leishmaniasis (CL) is often self-healing, visceral leishmaniasis (VL) is fatal if …

Concepts In Animal Parasitology: Example Chapter Section, Manuscript Of The Aspidogastrea By Klaus Rohde, Klaus Rohde

Concepts in Animal Parasitology

This is an example chapter section for Concepts in Animal Parasitology. It is a manuscript of the section titled The Aspidogastrea, written by by Klaus Rohde. This is an example of a section written without using the optional template for Parts 2-5 of the textbook. The associated images are included in a supplemental file.

ความชุกของเชื้อลิชมาเนีย และทริพพาโนโซมในริ้นฝอยทราย ที่เก็บได้จากแหล่งระบาดของโรคลิชมาเนียในประเทศไทย, พิมพ์พิลาส ศรีสุธน

Chulalongkorn University Theses and Dissertations (Chula ETD)

ริ้นฝอยทราย จัดเป็นแมลงดูดเลือดที่มีขนาดเล็ก อยู่ในวงศ์ Psychodidae อันดับ Diptera ซึ่งเป็นแมลงที่มีความสำคัญทางการแพทย์ เพราะเป็นพาหะนำโรคลิชมาเนีย ทั้งในมนุษย์และสัตว์ ในประเทศไทยมีรายงานการพบโรคลิชมาเนียและโรคทริพพาโนโซมในมนุษย์ แต่ข้อมูลของแมลงพาหะนำโรค ยังมีอยู่อย่างจำกัด งานวิจัยนี้ จึงได้ทำการศึกษาความชุกของเชื้อลิชมาเนียและเชื้อทริพพาโนโซม และความสัมพันธ์ของแมลงพาหะนำโรค ในพื้นที่ที่เป็นแหล่งระบาดของโรคลิชมาเนีย (จังหวัดสงขลา จังหวัดพัทลุง จังหวัดเชียงราย) และพื้นที่ที่ไม่ใช่แหล่งระบาดของโรคลิชมาเนีย (จังหวัดชุมพร) จำนวนทั้งหมด 500 ตัวอย่าง แบ่งออกเป็นตัวเมีย 276 ตัวอย่าง และตัวผู้ 224 ตัวอย่าง ทำการตรวจหาเชื้อลิชมาเนีย และเชื้อทริพพาโนโซม โดยใช้ตำแหน่งของยีน ITS1 และ SSU rRNA ตามลำดับ และระบุชนิดของริ้นฝอยทรายที่ตรวจพบเชื้อ ด้วยเทคนิคทางอณูชีววิทยาโดยใช้ตำแหน่งของยีน COI และ CytB ผลตรวจหาเชื้อลิชมาเนีย และทริพพาโนโซมในริ้นฝอยทราย พบว่า ริ้นฝอยทรายจากจังหวัดสงขลาจำนวน 180 ตัวอย่าง ตรวจพบเชื้อ L. martiniquensis 2 ตัวอย่าง (1.1%) และพบเชื้อ Trypanosoma sp. 4 ตัวอย่าง (2.8%) ในริ้นฝอยทราย Se. khawi ซึ่งในจำนวนนี้มีการตรวจพบ Co-infection ของเชื้อ L. martiniquensis และ Trypanosoma sp. ในริ้นฝอยทราย Se. khawi 1 ตัวอย่างด้วย ริ้นฝอยทรายจากจังหวัดพัทลุง จำนวน 136 ตัวอย่าง ตรวจพบ Trypanosoma sp. 2 ตัวอย่าง (1.5%) ในริ้นฝอยทราย Se. khawi และ Se. indica ริ้นฝอยทรายจากจังหวัดเชียงราย 61 ตัวอย่าง ตรวจพบเชื้อ Trypanosoma noyesi 1 …

Evaluation Of Anthelmintic Properties And Toxicity Of Pure Compounds Isolated From Dalea Spp (Plantae, Fabaceae), Victoria Lh Mcpherson

All Master's Theses

Infecting upwards of a billion people worldwide, hookworm is one of the most prevalent parasitic infections affecting the world today. Those infected experience hookworm disease, characterized by severe anemia, which can lead to malnutrition, low birth weights, and physical and mental impairments. Currently, the benzimidazoles albendazole and mebendazole are used as the primary treatment; however, resistance to these drugs is emerging. Due to this resistance, finding new anthelmintic compounds active against hookworm is a priority. Previously, a pure compound isolated from Dalea ornata was identified as having strong anthelmintic activity when used against the hookworm Ancylostoma ceylanicum. This project …

Detection Of Flagellated Protozoa Belonging To The Trypanosomatidae Family In Sand Flies Collected From Songkhla Province, Southern Thailand, Komson Chinwirunsirisup

Chulalongkorn University Theses and Dissertations (Chula ETD)

Autochthonous leishmaniasis cases in Thailand are increasing dramatically, the disease is caused by two major of Leishmania species; L. orientalis and L. martiniquensis. Leishmaniasis is transmitted to the vertebrate hosts through the bite of the infected female sand fly. Moreover, other trypanosomatid protozoa have also been reported in this insect vector. In 2016, Trypanosoma sp. has been detected in sand fly from Songkhla province, where the leishmaniasis case has been reported. The aims of this study are to investigate the potential vectors of trypanosomatids in this area using morphological and molecular identification based on the Cytb gene. The parasites were …

การตรวจหาเชื้อแบคทีเรียก่อโรคในเหาโคจาก 3 จังหวัดของประเทศไทย, จุฬาลักษณ์ พรมรังษ์

Chulalongkorn University Theses and Dissertations (Chula ETD)

เหาโค (Cattle lice) เป็นแมลงดูดเลือดชนิดหนึ่งซึ่งเป็นสาเหตุหลักของปัญหาสุขภาพสัตว์ทั่วโลก หลายงานวิจัยได้เปิดเผยข้อมูลการตรวจพบเชื้อแบคทีเรียก่อโรคในเหาโคและเหาโคอาจมีศักยภาพที่สามารถทำหน้าที่เป็นพาหะนำโรคต่าง ๆ ที่สามารถติดต่อโดยเหา และการศึกษาชนิดของเหาโคโดยใช้เทคนิคทางอณูชีววิทยาและการตรวจหาเชื้อแบคทีเรียก่อโรคในประเทศไทยยังไม่มีการรายงาน งานวิจัยนี้มีวัตถุประสงค์เพื่อตรวจหาเชื้อแบคทีเรียก่อโรคในเหาโคและจำแนกชนิดของเหาโคที่เก็บจากพื้นที่ 3 จังหวัดของประเทศไทย โดยตัวอย่างเหาโคทั้งหมด 109 ตัวอย่าง จะนำมาสกัดดีเอ็นเอและใช้เทคนิค PCR ศึกษาบนตำแหน่งยีน 18S rRNA ที่ได้ทำการพัฒนาออกแบบขึ้นเพื่อระบุชนิดของเหาโค และตรวจหาเชื้อ Bartonella spp., Acinetobacter spp. และ Rickettsia spp. จากนั้นนำมาวิเคราะห์หาลำดับนิวคลีโอไทด์และสร้างแผนภูมิวิวัฒนาการ จากผลลำดับนิวคลีโอไทด์ของยีน 18S rRNA แสดงให้เห็นว่าชนิดของเหาโคในงานวิจัยนี้แบ่งออกเป็น 2 กลุ่ม คือ Haematopinus quadripertusus และ Haematopinus spp. ที่มีความสัมพันธ์ใกล้ชิดกับ H. tuberculatus และสามารถตรวจพบเชื้อ Bartonella spp. ทั้งยีน gltA และ rpoB ทั้งหมด 25 ตัวอย่างจาก 109 ตัวอย่าง (22.93%) พบทั้งในระยะไข่และตัวเต็มวัย เมื่อทำการวิเคราะห์ลำดับนิวคลีโอไทด์และศึกษาแผนภูมิวิวัฒนาการของยีน gltA และ rpoB พบว่าเชื้อ Bartonella spp. ในงานวิจัยนี้มีความใกล้ชิดกับสายพันธุ์ B. bovis งานวิจัยนี้เป็นการรายงานครั้งแรกของการตรวจพบเชื้อ Bartonella spp. ในเหาโคที่เก็บจากพื้นที่ 3 จังหวัดของประเทศไทย และทำให้ทราบถึงข้อมูลชนิดของเหาโคในประเทศไทยโดยใช้เทคนิคทางอณูชีววิทยา ซึ่งข้อมูลเหล่านี้อาจนำมาใช้เพื่อระบุศักยภาพของเหาโคที่จะทำหน้าที่เป็นพาหะนำโรคและอาจถ่ายทอดเชื้อแบคทีเรียก่อโรคเหล่านี้จากสัตว์มาสู่มนุษย์

The Malaria Testing And Treatment Landscape In Kenya: Results From A Nationally Representative Survey Among The Public And Private Sector In 2016., Kathryn A. O'Connell, Vamsi Vasireddy, Megan Littrell, Andria Rusk, Actwatch Group, Anne Musuva, Waqo Ejersa, Rebecca Kiptui, Dorothy Memusi, Edward Abwao

Collected Faculty Scholarship

BACKGROUND: Since 2004, Kenya's national malaria treatment guidelines have stipulated artemisinin-based combination therapy (ACT) as first-line treatment for uncomplicated malaria, and since 2014, confirmatory diagnosis of malaria in all cases before treatment has been recommended. A number of strategies to support national guidelines have been implemented in the public and private sectors in recent years. A nationally-representative malaria outlet survey, implemented across four epidemiological zones, was conducted between June and August 2016 to provide practical evidence to inform strategies and policies in Kenya towards achieving national malaria control goals.

RESULTS: A total of 17,852 outlets were screened and 2271 …

Of Rats And Men, Thomas S. Walsh

Capstones

This capstone is a data-driven investigation into New York City's rat problem. By using publicly available government data to map rat activity in NYC, I identified several socio-economic variables that correlate with rat populations at the community district, borough, and city-scale. I used these findings (mainly that rat problems are linked to lower incomes) as the basis of an investigation, which includes interviews with residents, experts, and city officials. Prof. Bobby Corrigan, urban rodentologist and formerly with the NYC Department of Health criticizes the city's efforts for the first time on the record.

https://thomasseiyawalsh.wixsite.com/ratstone

When It Just Won't Go Away: Oral Artemisinin Monotherapy In Nigeria, Threatening Lives, Threatening Progress., Kathryn A. O'Connell, Vamsi Vasireddy, Megan Littrell, Andria Rusk, Actwatch Group, Chinazo Ujuju, Jennifer Anyanti, Paul N Newton, Godwin Ntadom

Collected Faculty Scholarship

BACKGROUND: Oral artemisinin monotherapy (AMT), an important contributor to multi-drug resistant malaria, has been banned in Nigeria. While oral AMT has scarcely been found for several years now in other malaria-endemic countries, availability has persisted in Nigeria's private sector. In 2015, the ACTwatch project conducted a nationally representative outlet survey. Results from the outlet survey show the extent to which oral AMT prevails in Nigeria's anti-malarial market, and provide key product information to guide strategies for removal.

RESULTS: Between August 10th and October 3rd, 2015 a total of 13,480 outlets were screened for availability of anti-malarials and/or malaria blood testing …

Influence Of An Internal Parasite Control On Cattle Grazing Behavior And Production, Jace Stott

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Six herds of 45 to 90 cow/calf pairs grazing on upland range were used to examine the efficacy of an injectable extended release eprinomectin parasite control on production traits, activity behavior, and efficacy against internal parasitism. In 2016, treatment cows were given a subcutaneous injection of LongRange^tm. In 2017, all cows in the study were treated with a short acting Synanthic^tm treatment and only treatment cows were given an additional LongRange^tm treatment. In both 2016 and 2017, fecal egg counts were significantly lower (P < 0.05) in eprinomectin treated cows compared to control cows. Calf gains were 4.8 kg and 8.7 kg greater (P < 0.1) for the calves of dams treated with eprinomectin compared to calves of control cows in 2016 and 2017, respectively. Activity characteristics of cattle were inconclusive, with treated cows having lower (P < 0.01) grazing and traveling times compared to control cows in 2016, and more (P < 0.01) grazing and traveling in 2017.

Differences in grazing behaviors based on time within pasture at different times …

Plasmodium Falciparum Epcr-Binding Pfemp1 Expression Increases With Malaria Disease Severity And Is Elevated In Retinopathy Negative Cerebral Malaria., Estela Shabani, Benjamin Hanisch, Robert O Opoka, Thomas Lavstsen, Chandy C John

Pediatrics Faculty Publications

Background

Expression of group A and the A-like subset of group B Plasmodium falciparumerythrocyte membrane protein 1 (PfEMP1) is associated with severe malaria (SM). The diversity of var sequences combined with the challenges of distinct classification of patient pathologies has made studying the role of distinct PfEMP1 variants on malaria disease severity challenging. The application of retinopathy in the recent years has provided a further method to clinically evaluate children with cerebral malaria (CM). The question of whether children with clinical CM but no retinopathy represent a completely different disease process or a subgroup within the spectrum of CM …

The Role Of Intermittent Preventive Treatment For Malaria In Saving Lives And Promoting Drug Resistance, Carrie Manore

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.