I want to buy today A4Tech Bloody v8 mouse but I heard that in mouse software used some "cheats". Anyone there have this or like this mouse? It's possible to disable the cheats? I don't want to got permanent ban in R6.

I took my mouse of 6 months out of her cage and she started sneezing blood into my hand. It wasn't a lot of blood but blood nonetheless. She seems to have a bloody nose. Is she sick? is it just the dry air, allergies? She's acting normal and has stopped sneezing but i'm still concerned. I'm grateful for anyone who answers


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The common spiny mouse (Acomys cahirinus) is the only known rodent to demonstrate a myriad of physiological processes unseen in their murid relatives. The most recently discovered of these uncharacteristic traits: spontaneous decidual transformation of the uterus in virgin females, preceding menstruation. Menstruation occurring without experimental intervention in rodents has not been documented elsewhere to date, and natural menstruation is indeed rare in the animal kingdom outside of higher order primates. This review briefly summarises the current knowledge of spiny mouse biology and taxonomy, and explores their endocrinology which may aid in our understanding of the evolution of menstruation in this species. We propose that DHEA, synthesised by the spiny mouse (but not other rodents), humans and other menstruating primates, is integral in spontaneous decidualisation and therefore menstruation. We discuss both physiological and behavioural attributes across the menstrual cycle in the spiny mouse analogous to those observed in other menstruating species, including premenstrual syndrome. We further encourage the use of the spiny mouse as a small animal model of menstruation and female reproductive biology.

This issue is in flux, and in Madrid, Sally Schroeter of Elan Pharmaceuticals addressed it with data from a 6-month study comparing the effects of several A antibodies on CAA in the PDAPP mouse model. In short, Schroeter reported that, to her surprise, the 3D6 antibody, which recognizes fibrillar A, not only did not worsen CAA, but instead cleared it in a dose-dependent fashion. The m266 capture antibody predictably had no effect on CAA. A multiphoton imaging study by Claudia Prada and colleagues at Massachusetts General Hospital in Charlestown paralleled this data by observing in live mice that a different antibody given to Tg2576 mice caused CAA to regress.

In fact it is so for the second kind of people that all of the first kind of people should not merely be forewarned, they should immediately put down the newspaper or double-click the mouse and head for shelter. Otherwise, to read what follows will greatly disturb them. Please, nice people: Go away.

Campylobacter jejuni has been identified as one of the leading causes of enteropathy and diarrhea. In developing countries, these repeated enteric infections often result in growth deficits and cognitive impairment. There is a lack of small animal models of Campylobacter infection. This is a major hurdle in understanding the pathogenesis of Campylobacter infection in order to lead to therapeutic treatments and vaccines. We have developed a highly reproducible mouse model of Campylobacter infection that has clinical outcomes that match those of malnourished children. We hope that these insights into Campylobacter susceptibility will lead to the development of treatments against this major cause of diarrheal illness.

Non-antibiotic treated C57BL/6 mice fed a standard house chow (HC) diet grew slightly better than antibiotic (gentamicin (35mg/L), vancomycin (45mg/L), metronidazole (215mg/L), and colistin (850U/ml) in drinking water days -4 through -1 prior to infection as described in Methods) treated mice and showed similar weight loss following a single dose of Campylobacter (106 via gavage) infection (Fig 1A). Both infected groups recovered weight quickly, 3 days post infection. However, there was a striking increase in Campylobacter shed in stool in antibiotic pretreated animals (Fig 1B). We were able to re-isolate and confirm the viable C. jejuni strain from feces of infected animals to confirm qPCR results (S1 Fig). Diarrhea was defined as unformed stool upon daily examination and sampling. As shown in the photographs in Fig 2, this was often watery and even bloody as noted in the legend. Diarrhea was observed only in antibiotic pretreated infected animals. Additionally, the fecal biomarker myeloperoxidase (MPO) was significantly elevated only in the antibiotic-pretreated Campylobacter infected group (Fig 1C).

Infection had varied effects on the microbiota of dZD-fed mice over time. At day one post-infection, there was an increase of ASVs assigned to Enterobacteriaceae, Defluviitaleaceae UCG-011, and decreases in ASVs assigned to Ruminococcaceae UCG-014 and Streptococcus (Fig 9). This change is consistent with blooms of Enterobacteriaceae observed immediately after infection with other pathogens that may be induced by the host inflammatory response [38]. However, none of these changes persisted through day 5 post-infection, where the same Enterobacteriaceae ASV was substantially less abundant in the infected group rather than more abundant as at day 1 post-infection. Two ASVs assigned to the S24-7 group of the Bacteroidales order and an ASV assigned to the genus Erysipelatoclostridium were increased in infected mice, while Lachnospiraceae NK4A135 decreased. By day 9 post-infection, no differences were observed between infected and uninfected dZD-fed mice other than in increase in Enterobacteriaceae in infected mice. Given that dZD-fed mice had persistent bloody diarrhea, the relatively low number of differentially-abundant ASVs is may be due to their extremely limited diversity, with fewer than 25 unique ASVs in all but two samples at all time points.

Given the increasingly recognized importance of Campylobacter infections (as causes of severe bloody diarrhea or growth failure in children living in developing areas) and of food and milk-borne outbreaks in developed areas, not to mention the troubling sequelae like Guillain-Barr Syndrome (GBS), the need for improved understanding of its pathogenesis and effective interventions or vaccines is paramount. A major limitation of work in this area is the lack of an inexpensive animal model that mimics human disease. Here, we demonstrate that nutritional and antimicrobial manipulations can enable us to model growth failure or overt bloody diarrhea. With manipulation of the antibiotics or diet, we may be able to model weight loss without overt diarrhea (as suggested by the transient effects of Campylobacter without antibiotic pretreatment shown in Fig 1A). This model opens tremendous opportunities to help enable vaccine development or other potential interventions.

C.jejuni infection in the zinc deficient mice elicited a robust inflammatory response evident by bloody diarrhea, intestinal and systemic inflammation parallel to growth faltering, highlighting the direct relevance of this model in clinical Campylobacteriosis research. This was accompanied by an activation of the kynurenine pathway as a result of systemic inflammation in response to infection. Indoleamine 2,3-dioxygenase (IDO) metabolizes tryptophan to kynurenine and it is increased in response to infection and inflammation resulting in a greater excretion of NMND and its downstream metabolites 2-PY and 4-PY.

After rapid dissection of the mouse intestines, cecal contents and stool were flash frozen in liquid nitrogen and stored in a -80C freezer. At time of assay, samples were lysed in RIPA buffer (20 mM Tris, pH 7.5, 150 mM NaCl, 1% Nonidet P-40, 0.5% sodium deoxycholate, 1 mM EDTA, 0.1% SDS) containing protease inhibitors cocktail (Roche) and phosphatase inhibitors (1 mM sodium orthovanadate, 5 mM sodium fluoride, 1 mM microcystin LR, and 5 mM beta-glycerophosphate). Tissue lysates were cleared by centrifugation, and the supernatant was used for total protein measurement (Pierce BCA), cytokine measurement by Luminex assay (BioRad), and specific ELISAs for lipocalin-2 (LCN2) and myeloperoxidase (MPO) as previously described [35].

The O104:H4 serotype has an unusual clinical pattern for Shiga toxin-producing E. coli (STEC) pathogens, including bloody diarrhea in adults followed by a high conversion rate to adult hemolytic uremic syndrome (HUS) or to severe non-HUS enterohemorrhagic symptoms in adults.

Professor Dr. Helge Karch and associated researchers at the National Consulting Laboratory on Hemolytic Uremic Syndrome, University of Muenster and the Interdisciplinary Center for Clinical Research, Muenster, wanted to study what the clinical implications of this kind of strain were for humans, rather than mice. They did a stratified analysis of 922 human STEC strains from patients with HUS, bloody or nonbloody diarrhea and asymptomatic carriers, looking at different kinds of STEC strains and disease course outcomes.

Virulence and adult bloody diarrhea and adult HUS at a higher rate of conversion may be due entirely to these enteroaggregative derived genes, not due to increased virulence of the Shiga toxin subtype, or increased virulence due to peptide editing by elastase, or some other enzyme.

However, the 5-day time course from bloody diarrhea to HUS is somewhat suggestive of a pathogen-human-pathogen interaction like that of mucosal elastase and Stx2d activatable strains. Indicators of patient status slightly improve on the third day, and some patients think they are recovering just before plunging into a rapid development of HUS. 2351a5e196

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