Corneal ulcers in pets can lead to blindness if left untreated...the importance of eye health care Your pet's eyes are their window to the world and an important measure of their health and happiness. One of the most common eye conditions seen in dogs and cats these days is corneal ulcers. The cornea is the outermost, transparent tissue of the eye that protects the eye from external stimuli and allows light to pass through for vision. However, various traumas, infections, and environmental factors can damage this cornea4519. The main causes of corneal ulcers are fights with other animals, scratches from claws, shampoo getting into the eye while bathing, structural problems where eyelashes irritate the eye, and dry eye syndrome. Brachycephalic breeds with protruding eyes, such as Shih Tzus, Chihuahuas, and Pekingese, are especially at risk for corneal damage and need extra attention4. The symptoms are relatively clear. Your pet may not be able to open their eyes properly, they may...
Non-contact exposure to dinotefuran disrupts honey bee homing by altering MagR and Cry2 gene expression
Non-contact exposure to dinotefuran disrupts honey bee homing by altering MagR and Cry2 gene expression Dinotefuran is known to negatively affect honeybee ( Apis mellifera ) behavior, but the underlying mechanism remains unclear. The magnetoreceptor ( MagR , which responds to magnetic fields) and cryptochrome ( Cry2 , which is sensitive to light) genes are considered to play important roles in honey bees’ homing and localization behaviors. Our study found that dinotefuran, even without direct contact, can act like a magnet, significantly altering MagR expression in honeybees. This non-contact exposure reduced the bees’ homing rate. In further experiments, we exposed foragers to light and magnetic fields, the MagR gene responded to magnetic fields only in the presence of light, with Cry 2 playing a key switching role in the magnetic field receptor mechanism ( MagR–Cry2 ). Yeast two-hybrid and BiFc assays confirmed an interactio...
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