A checklist of bat-associated macronyssid mites (Acari: Gamasina: Macronyssidae) of Russia, with new host and geographical records.

The family Macronyssidae (Acari: Mesostigmata) comprises mostly obligate blood-sucking ectoparasites of bats (Mammalia: Chiroptera) and some other animals, such as small mammals, reptiles and birds. Here, we document and curate previously known data, and, based on our extensive survey, provide this article of bat-associated macronyssid mites of the Russian Federation. We record a total of 24 mite species belonging to 4 genera (Ichoronyssus, Macronyssus, Steatonyssus, and Cryptonyssus). Twenty-seven new host-parasite associations are reported. In addition, were provide data on five major Russian regions, for which bat-associated mite records were lacking.

Historic and geographic surveillance of Pseudogymnoascus destructans possible from collections of bat parasites.

Specimens archived in wet collections represent valuable material for scientific research. Here, we show that bat fly (Diptera, Nycteribiidae) samples contain DNA of Pseudogymnoascus destructans, a fungus pathogenic to bats. Using dual-probe quantitative PCR, we detected P. destructans DNA on bat flies collected in the Samara, Sverdlovsk and Irkutsk regions of Russia between 2005 and 2017. Fungal load was significantly lower on bat flies from wet collections than on freshly collected mites in the Czech Republic. The bat pathogen was present in the Samara region (European part of Russia) in 2005, that is, a year before recognition of white-nose syndrome in North America. As Samara and Irkutsk regions were identified as new positive locations of P. destructans, our data expand the known geographic distribution of P. destructans. We conclude that ethanol-stored ectoparasites can be used to identify the presence of pathogens in historic bat populations and understudied geographical regions.

[New records of ectoparasites of the eastern water bat Myotis petax Hollister, 1912 (Vespertilionidae, Chiroptera) and the revision of the previous material collected from Myotis daubentonii s. lato in Eastern Palaearctic].

New findings of ectoparasites from the eastern water bat Myotis petax Hollister, 1912, belonging to the Siberian-Russian Far Eastern complex and earlier attributed as a subspecies of the Daubenton's bat Myotis daubentonii s. lato, is given. Fourteen species of bloodsucking arthropods feed on M. petax; these species include 4, 3, and 7 species of gamasid mites, fleas, and bloodsucking flies, respectively.

[Possibilities for identification of cryptic species of Chiroptera using host-specific ectoparasites].

The possibility of identification of the sibling species of Chiroptera by the example of Myotis daubentonii Kuhl, 1817 and Myotis petax Hollister, 1912 by their host-specific ectoparasitic fauna is discussed. Their habitat limits are defined.

[Using new methods of endoscopic polypectomy and the prevention of complications in the treatment of patients with colon polyps].

UNLABELLED: Endoscopic polypectomy performed 290 patients with polyps of the colon, removing 519 tumors. For the analysis identified two groups of patients: control and study--151, and 139 patients respectively In the study group used a well-known and new ways of EPE and the prevention of complications. Patients of the control group removed large (2.4-3.5 cm) polyps 32 (12.9%) and giant (> 3.5 cm)-- 2 (0.8%) in the study group--40 (14.8%) major and 16 (5.9%) giant. LST-adenomas, which are located in the bends of the colon removed in the control group 0, in the study 8 (5.8%). In the control group, bleeding occurred in 5.65%, in the study 1.85%. Perforations in the two groups was not. CONCLUSION: The use of endoscopic polypectomy of new methods and prevention of its complications in a complex developed a new treatment strategy can significantly improve the results of endoscopic treatment of patients with polyps of the colon.