Publications by authors named "Marco MendonCa"
Article Synopsis
- The study investigated the effects of a liquid extract (MDLE) as a semen extender for breeder roosters at room temperature, using a factorial design with 15 roosters and treating the semen with either MDLE or a commercial extender.
- Results showed that the experimental MDLE extender led to a significant decline in sperm motility and vigor, while increasing pH and sperm defects, becoming less effective than the commercial extender.
- Despite these drawbacks, the MDLE extender maintained sufficient sperm quality for up to 15 minutes at room temperature, suggesting it may be a viable alternative, but it is not as effective as the commercial option.
Article Synopsis
- The giant anteater is facing threats from habitat destruction, illegal hunting, and road kills, making research on its reproductive health crucial for conservation efforts.
- This study focused on collecting and analyzing semen from 13 captive giant anteaters using electroejaculation to gather information on sperm characteristics.
- The findings revealed important parameters like semen volume, motility, and abnormalities, indicating that electroejaculation is an effective way to collect semen for better reproductive management in this species.
Every day, new applications arise relying on the use of high-resolution road maps in both academic and industrial environments. Autonomous vehicles rely on digital maps to navigate when optical sensors cannot be trusted, such as heavy rainfalls, snowy conditions, fog, and other situations. These situations increase the risks of accidents and disable the potentials of real-time mapping sensors.
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- In 2015, Brazil experienced the simultaneous circulation of Zika, Dengue, and Chikungunya viruses, complicating accurate diagnosis due to overlapping symptoms and a lack of validated testing for Zika.
- A study conducted by Fiocruz captured data from 364 suspected Zika cases between January and July 2015, with 119 confirmed cases through laboratory testing, revealing the presence of Zika virus in Rio de Janeiro.
- The outbreak peaked in May/June 2015, with patients primarily reporting symptoms like headache and joint pain, while fever was generally mild and brief, highlighting the distinctive manifestations of suspected Zika infections.
In trypanosomatids the involvement of mitochondrial complex I in NADH oxidation has long been debated. Here, we took advantage of natural Trypanosoma cruzi mutants which present conspicuous deletions in ND4, ND5 and ND7 genes coding for complex I subunits to further investigate its functionality. Mitochondrial bioenergetics of wild type and complex I mutants showed no significant differences in oxygen consumption or respiratory control ratios in the presence of NADH-linked substrates or FADH(2)-generating succinate.
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