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https://www.readbyqxmd.com/read/29114362/comparative-cytogenetics-of-some-marsupial-species-didelphimorphia-didelphidae-from-the-amazon-basin
#1
Carlos Eduardo Faresin E Silva, Rodrigo Amaral de Andrade, Érica Martinha Silva de Souza, Eduardo Schmidt Eler, Maria Nazareth Ferreira da Silva, Eliana Feldberg
We investigated the karyotype of 18 didelphid species captured at 13 localities in the Brazilian Amazon, after conventional staining, C-banding, Ag-NOR and fluorescent in situ hybridization (FISH) using the 18S rDNA probe. Variations were found in the X chromosome, heterochromatin distribution and the 18S rDNA sequence. The main variation observed was in the position of the centromere in the X chromosome of Caluromys philander Linnaeus, 1758 and Marmosa murina Linnaeus, 1758. For both species, the X chromosome showed a geographical segregation in the pattern of variation between eastern and western Brazil, with a possible contact area in the central Amazon...
2017: Comparative Cytogenetics
https://www.readbyqxmd.com/read/29106561/toward-an-ecological-framework-for-assessing-reservoirs-of-vector-borne-pathogens-wildlife-reservoirs-of-trypanosoma-cruzi-across-the-southern-united-states
#2
Carolyn L Hodo, Sarah A Hamer
Wildlife species are critical for both feeding vectors and serving as reservoirs of zoonotic vector-borne pathogens. Transmission pathways leading to disease in humans or other target taxa might be better understood and managed given a complete understanding of the relative importance of different reservoir species in nature. Using the conceptual framework of "reservoir potential," which considers elements of both reservoir competence and vector-host contact, we review the wildlife reservoirs of Trypanosoma cruzi in the southern United States, where many species of triatomine vectors occur and wildlife maintain enzootic cycles that create a risk of spillover to humans, domestic dogs, and captive nonhuman primates that may develop Chagas disease...
July 6, 2017: ILAR Journal
https://www.readbyqxmd.com/read/29103381/histopathological-changes-in-the-liver-and-stomach-of-didelphis-virginiana-didelphimorphia-didelphidae-during-natural-infection-with-gnathostoma-turgidum-nematoda-gnathostomidae
#3
E H Torres-Montoya, J M Zazueta-Moreno, L U Osuna-Martínez, H Castillo-Ureta, G Silva-Hidalgo, H S López-Moreno, I Osuna-Ramírez, E Noguera-Corona, J G Rendón-Maldonado
Gnathostoma turgidum is a nematode parasite that exploits the stomach of Virginian opossums, Didelphis virginiana, in Latin America. The opossum is the definitive host of G. turgidum in the wild. Intrahepatic growth and maturation of the parasite, subsequent migration to the stomach and spontaneous expulsion are common. However, the histopathological lesions caused by G. turgidum are poorly described. A better understanding of the life cycle of this parasite and the pathological changes in natural host-parasite interactions could help to clarify the progression of human infections caused by Gnathostoma binucleatum...
November 6, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29030159/obstructive-m%C3%A3-llerian-anomalies-in-menstruating-adolescent-girls-a-report-of-22-cases
#4
Karina Kapczuk, Zbigniew Friebe, Kinga Iwaniec, Witold Kędzia
STUDY OBJECTIVE: To assess the clinical course of obstructive Müllerian anomalies found in girls after menarche DESIGN: A retrospective case series of adolescents who between 2009 and 2016 were treated for vaginal or uterine obstructive malformations diagnosed after menarche SETTING: Division of Gynecology, Poznań University of Medical Sciences, Poznań, Poland PARTICIPANTS: Twenty-two patients who, at the age of 11.4-18.2 (median 13.1) years, between 2 and 74 (median 7.5) months after menarche, underwent surgical repair of obstructive genital anomaly MAIN OUTCOME MEASURES: Müllerian defect type, presentation, radiologic findings, pre- and postoperative course RESULTS: Eighteen patients (81...
October 10, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28975655/absence-of-bony-patella-in-the-white-eared-opossum-didelphis-albiventris-morphology-and-diagnostic-imaging
#5
L R Inamassu, M J Mamprim, C R Dadalto, F C Cavaletti, M C Mello, B C Schimming
Patella, the kneecap, is the best known and largest of the sesamoid bones and is present in the quadriceps femoris tendon. Typical patella appears in all extant mammals, with the exception of some marsupials and bats. No description about the white-eared opossum stifle was found in the available literature up to now. Thus, the knee joints of 16 Didelphis albiventris were examined by gross anatomy, histology, radiography and computed tomography images to determine the presence or absence of ossified patella in this animal...
October 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28929000/successful-vaginal-delivery-of-naturally-conceived-dicavitary-twin-in-didelphys-uterus-a-rare-reported-case
#6
Houda Nasser Al Yaqoubi, Nishat Fatema
Didelphys uterus, or double uterus, is an embryological developmental malformation of the müllerian ducts with the incidence of approximately 8.3% of all müllerian duct abnormalities (MDAs). Didelphys uterus accompanying dicavitary twin gestation is encountered as a very rare entity with overall incidence of about 1 in 1,000,000. We report a rare case of didelphys uterus, diagnosed since her first pregnancy, and during her fourth pregnancy she conceived dicavitary twin naturally without any infertility treatment...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28921452/the-spectrum-of-imaging-appearances-of-m%C3%A3-llerian-duct-anomalies-focus-on-mr-imaging
#7
REVIEW
Takeru Fukunaga, Shinya Fujii, Chie Inoue, Naoko Mukuda, Atsushi Murakami, Yoshio Tanabe, Tasuku Harada, Toshihide Ogawa
Müllerian duct anomalies (MDAs) are the result of incomplete development, vertical or lateral fusion, or absorption of the müllerian ducts. The range of anomalies includes uterovaginal agenesis or hypoplasia, unicornuate uterus, uterus didelphys, bicornuate uterus, septate uterus, and arcuate uterus. Correct diagnosis and classification of these anomalies are essential because pregnancy outcomes and treatment options vary between the types of anomaly. Furthermore, early identification of MDAs helps to avoid prolonged symptomatic periods and the complications that may subsequently arise, such as infertility, endometriosis, and neoplasm...
September 18, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28913123/true-management-of-obstructed-hemi-vagina-and-ipsilateral-renal-anomaly-syndrome
#8
Betül Yakıştıran, Yavuz Emre Şükür, Batuhan Turgay, Cem Atabekoğlu
Herlyn-Werner-Wunderlich syndrome is an unusual congenital anomaly of the female genitourinary system, which is described as uterine didelphys with Obstructed Hemi-vagina and Ipsilateral Renal Anomaly (OHIRA), also known as OHVIRA syndrome. Typical symptoms are pelvic pain, tenderness, pelvic mass due to blood collection in the obstructed hemi-vagina and uterus, and dysmenorrhea that usually begins shortly after menarche. Clinical suspicion is very important for diagnosis and correct management avoids both short- and long-term complications...
December 2016: Turk J Obstet Gynecol
https://www.readbyqxmd.com/read/28900659/delayed-presentation-of-uterine-rupture-in-a-didelphys-uterus-misdiagnosed-as-appendicitis-a-case-report-and-review-of-the-literature
#9
Linsen Shi, Xiaoman Lin, Suoyou Sha, Libin Yao, Xiaocheng Zhu, Yong Shao
INTRODUCTION: Uterine rupture during pregnancy caused by uterine dysplasia, such as the double uterus, is very rare and easily overlooked by the surgeon. CASE: A 25-year-old woman, at 17 weeks of gestation presented to our emergency center with acute right lower abdominal pain for more than 10 h. The initial diagnosis is acute appendicitis, but during the exploration, we found about 2500 mL of intraperitoneal hemorrhage, appendix was normal, pregnancy in one of the double uterine and ruptured at the right bottom...
November 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28807736/uterine-didelphys-with-bilateral-cervical-agenesis-in-a-15-year-old-female
#10
Kate C Arnold, Theresa C Thai, LaTasha B Craig
BACKGROUND: Isolated uterine didelphys requires no treatment in contrast to cervical agenesis, which requires a hysterectomy. Given this, correct diagnosis of Müllerian anomalies is paramount for making recommendations for patient care. CASE: A 15-year-old presented to clinic with pelvic pain and primary amenorrhea. Uterine didelphys with bilateral cervical agenesis was diagnosed by imaging. Hysterectomy was recommended and diagnosis was confirmed at surgery and by anatomic pathology...
August 11, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28807293/sarcocystis-neurona-and-neospora-caninum-in-brazilian-opossums-didelphis-spp-molecular-investigation-and-in-vitro-isolation-of-sarcocystis-spp
#11
Leane S Q Gondim, Rogério F Jesus, Müller Ribeiro-Andrade, Jean C R Silva, Daniel B Siqueira, Maria F V Marvulo, Felipe M Aléssio, Jean-François Mauffrey, Fred S Julião, Elisa San Martin Mouriz Savani, Rodrigo M Soares, Luís F P Gondim
Sarcocystis neurona and Neospora spp. are protozoan parasites that induce neurological diseases in horses and other animal species. Opossums (Didelphis albiventris and Didelphis virginiana) are definitive hosts of S. neurona, which is the major cause of equine protozoal myeloencephalitis (EPM). Neospora caninum causes abortion in cattle and infects a wide range of animal species, while N. hughesi is known to induce neurologic disease in equids. The aims of this study were to investigate S. neurona and N. caninum in tissues from opossums in the northeastern Brazil, and to isolate Brazilian strains of Sarcocystis spp...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28796686/a-transperineal-approach-to-hysterectomy-of-a-retained-didelphic-uterine-horn
#12
Mary M Mullen, Lindsay M Kuroki, Steven R Hunt, Kristy L Ratkowski, David G Mutch
BACKGROUND: Gynecologic surgeries are performed through abdominal, vaginal, laparoscopic, or robot-assisted laparoscopic routes. However, if the pelvis is not accessible by one of these routes, there are no published reports to guide pelvic surgeons. CASE: A 34-year-old conjoined twin status postseparation with uterine didelphys and absence of her left colon and sacrum underwent hemihysterectomy, at which time her müllerian anomaly was unknown. She re-presented with vaginal bleeding and pain eventually attributed to a retained uterine horn...
September 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28791270/herlyn-werner-wunderlich-syndrome-an-unusual-presentation-with-pyocolpos
#13
Eun Jung Jung, Moon Hyeong Cho, Da Hyun Kim, Jung Mi Byun, Young Nam Kim, Dae Hoon Jeong, Moon Su Sung, Ki Tae Kim, Kyung Bok Lee
Herlyn-Werner-Wunderlich syndrome is a rare congenital anomaly of the urogenital tract, which is characterized by the triad of uterus didelphys, obstructed hemivagina, and ipsilateral renal agenesis. It usually presents at puberty with pelvic pain, dysmenorrhea, and a vaginal or pelvic mass. Although rare, it may present with purulent vaginal discharge due to secondary infection of the obstructed hemivagina, making diagnosis difficult. A careful pelvic examination to identify the cervix and vagina is the key to the diagnosis of Müllerian duct anomalies and magnetic resonance imaging can provide additional useful information...
July 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28774495/wild-and-domestic-animals-likely-involved-in-rickettsial-endemic-zones-of-northwestern-colombia
#14
Andrés F Londoño, Leidy Y Acevedo-Gutiérrez, Diana Marín, Verónica Contreras, Francisco J Díaz, Gustavo Valbuena, Marcelo B Labruna, Marylin Hidalgo, Margarita Arboleda, Salim Mattar, Sergio Solari, Juan D Rodas
Between 2006 and 2008, three outbreaks of human rickettsiosis occurred in Northwestern Colombia (municipalities of Necoclí, Los Córdobas and Turbo), with case fatality rates between 27% and 54%. The aim of this study was to determine previous exposure of wild and domestic animals to spotted fever group (SFG) rickettsiae through serological tests, to detect rickettsial evidence in their ectoparasites, and to analyze their possible role in the epidemiology of rickettsial diseases in this zone of the country...
July 21, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28759578/heterologous-expression-of-the-antimyotoxic-protein-dm64-in-pichia-pastoris
#15
Saulo Martins Vieira, Surza Lucia Gonçalves da Rocha, Ana Gisele da Costa Neves-Ferreira, Rodrigo Volcan Almeida, Jonas Perales
Snakebite envenomation is a neglected condition that constitutes a public health problem in tropical and subtropical countries, including Brazil. Interestingly, some animals are resistant to snake envenomation due to the presence of inhibitory glycoproteins in their serum that target toxic venom components. DM64 is an acidic glycoprotein isolated from Didelphis aurita (opossum) serum that has been characterized as an inhibitor of the myotoxicity induced by bothropic toxins bearing phospholipase A2 (PLA2) structures...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28753841/case-presentation-neurogenic-bladder-in-a-girl-after-surgery-for-cloacal-malformation
#16
Goedele M A Beckers, R Jeroen A van Moorselaar
A girl born in 2006 has been under close surveillance in our pediatric urology unit since birth. Besides cloacal malformation, she has associated spinal cord dysraphism, uterus didelphys, and a vaginal septum.
July 4, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28749264/pulmonary-lesions-caused-by-the-lungworm-didelphostrongylus-hayesi-in-the-opossum-didelphis-virginiana-in-colima-mexico
#17
Rubén A López-Crespo, Alfonso López-Mayagoitia, Rafael Ramírez-Romero, Julio Martínez-Burnes, Omar F Prado-Rebolledo, Luis J García-Márquez
Didelphostrongylus hayesi is an important and prevalent pulmonary nematode in the opossum ( Didelphis virginiana ). An in-depth description of the pulmonary lesions caused by this nematode is lacking. The objective of this investigation was to make a detailed account of the gross, subgross, and microscopic changes that occur in the lungs of opossums naturally infected with D. hayesi. Forty-four opossums trapped in the state of Colima, Mexico, were euthanized by an overdose of barbiturates. Following a postmortem examination, the right lung was cut from the main bronchi and placed in a Petri dish containing a saline solution for the detection and identification of live parasites...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28733979/novel-clinical-and-molecular-findings-in-spanish-patients-with-nevoid-basal-cell-carcinoma-syndrome
#18
N Alonso, J Cañueto, S Ciria, E Bueno, I Palacios-Alvarez, M Alegre, C Badenas, A Barreiro, L Pena, C Maldonado, M V Nespeira-Jato, C Peña-Penabad, A Azon, M Gavrilova, I Ferrer, O Sanmartin, L Robles, A Hernandez, M Urioste, S Puig, L Puig, R Gonzalez-Sarmiento
Nevoid Basal Cell Carcinoma Syndrome (NBCCS) is an autosomal dominant disorder characterised by developmental alterations and multiple basal cell carcinomas. Mutations in PTCH1, a membrane receptor for Sonic Hedgehog, are associated with the development of the disease. Most of them produce a truncated protein which is unable to supress Smoothened protein and continuously activates the downstream pathway OBJECTIVES: We aimed to characterize 22 unrelated Spanish subjects with NBCCS, the largest cohort of Gorlin syndrome reported to date in Spain METHODS AND RESULTS: We reported for the first time two young patients with uterus didelphys and ganglioneuroma, within the context of NBCCS...
July 22, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28728938/didelphis-albiventris-naturally-infected-with-hepatozoon-canis-in-southeastern-brazil
#19
Maria Regina Lucas da Silva, Felipe Fornazari, Larissa de Castro Demoner, Carlos Roberto Teixeira, Helio Langoni, Lucia Helena O'Dwyer
Hepatozoon species are vector-borne pathogens that infect domestic and wild animals. Marsupials of the species Didelphis albiventris are adapted to urban and peri-urban areas and act as reservoir hosts for several parasites. The present study evaluated the occurrence of infection by Hepatozoon species in synantropic D. albiventris from Botucatu, São Paulo, Brazil. Blood samples and ectoparasites from 19 D. albiventris were collected from urban and peri-urban areas. Hepatozoon spp. detection was performed by microscopy and molecular analysis...
July 14, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28705488/prevalence-of-trypanosoma-cruzi-infection-in-dogs-and-small-mammals-in-nuevo-le%C3%A3-n-mexico
#20
Lucio Galaviz-Silva, Roberto Mercado-Hernández, José J Zárate-Ramos, Zinnia J Molina-Garza
Chagas disease, caused by the protozoan Trypanosoma cruzi, is an important public health concern in areas extending from South America northward into the southern United States of America. Although this hemoflagellate has many wild and domestic mammalians reported as reservoir hosts, studies on this subject are scarce in Nuevo León state, a region located in northeastern Mexico. This cross-sectional study showed that the general prevalence of T. cruzi infection in Nuevo León state was 14.5% (35/241), this percentage matching the ones determined by PCR and traditional diagnostics...
July 10, 2017: Revista Argentina de Microbiología
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