The imprisoned mother of a prominent critic of Chechen leader Ramzan Kadyrov has been sent to the hospital to undergo medical treatment after her lawyer petitioned the authorities to allow her to receive care due to her declining health. Zarema Musaeva, the mother of activist Abubakar Yangulbaev and the wife of a retired federal judge, is serving a five-year prison sentence for fraud and assault on a police officer. An earlier sentence was reduced by six months because of her chronic diabetes. Last month, Musaeva’s lawyer, Alexander Savin, said her blood sugar was “approaching a critical mark”…