UNCHANGED RECOVERY OF CROSSOVERS AFTER X-IRRADIATION OF PUPAL HABROBRACON

Unchanged recovery of crossovers after x-irradiation of pupal Habrobracon.

Received January 16, 1961 A LTHOUGH the irradiation of Drosophila results in more crossover off spring, it has not been demonstrated that this effect has its origin in meiosis (WHITTINGHILL 1955) rather than in gonia1 exchange. Hence it is appropriate to irradiate specimens or stages which may have only oijgonia rather than the mixture of gonia and gametocytes carried by adults. Previous experi...

Recovery of spermatogenesis after total-body irradiation.

criteria and 40% in the best schedule (5-day intravenous). This compares favorably with prior experiences with decitabine and 5-azacitidine (CR rates, 6%-20%).4,5 Also, decitabine was less toxic than 5-azacitidine in relation to nausea/vomiting and local skin reactions (pain and induration in 5%-10% of patients on 5-azacitidine). The incidence of 65% of hospitalization is cumulative. As one del...

Pattern of Gustatory Impairment and Its Recovery after Head and Neck Irradiation

Introduction: Themajority of patients receiving concurrent chemoradiotherapy frequently complain of changes in their taste perception, and other distressing symptoms affecting their quality of life. This study was undertaken to determine the pattern of gustatory impairment and its recovery in irradiated head and neck cancer patients in India.   Materials and Methods: Thirty patients undergoing ...

Alterations of liver DNA after X-irradiation.

Human cell recovery after microwave irradiation

Cells of human buccal epithelium of 6 male donors were exposed to microwave radiation (frequency f=36,64 GHz, power density E=10, 100, and 400 µW/cm 2). Exposure time in all experiments was 10 seconds. Heterochromatin was stained by 2% orcein in 45 % acetic acid. The stainability of cells with trypan blue (0,5 %) and indigocarmine (5 mM) after 5 min of staining was investigated. Irradiation ind...