Under what conditions can Huuman codes be eeciently decoded in both directions? The usual decoding procedure works also for backward decoding only if the code has the aax property, i.e., both preex and suux properties. Some aax Huuman codes are exhibited, and necessary conditions for the existence of such codes are given. An algorithm is presented which, for a given set of codeword lengths, con...

The efficacy of hydroxyurea (HU) and its role in the reduction in mortality in sickle cell patients has been established. Nevertheless, many patients still die of complications of this disease while on HU. Of the 226 patients treated with HU at our center, 38 died (34 of sickle cell-related causes). Acute chest syndrome (ACS) was the most common (35%) cause of death. Deceased and surviving pati...

Glutathione (GSH) homeostasis is important during organogenesis. To elucidate the impact of GSH depletion in organogenesis stage embryos on oxidative stress and drug teratogenicity, l-buthionine-S,R-sulfoximine (BSO) was given to timed pregnant CD-1 mice 4 h before exposure to a model teratogen, hydroxyurea (HU) [400 mg/kg (HU-400) or 600 mg/kg (HU-600)]. Treatment with BSO or HU alone or with ...

conclusions: hydroxyurea can be safely used in some transfusion-dependent β-thalassemia patients to decrease their transfusion needs. background: β-thalassemia is an inherited hemoglobin disorder caused by defective synthesis of ß-globin chains. hemoglobin (hb) f induction is a possible therapeutic approach which can partially compensate for α and non-α globin chains imbalance. objectives: we a...

HU is one of the most abundant proteins in bacterial chromosomes and participates in nucleoid compaction and gene regulation. We report experiments using DNA stretching that study the dependence of DNA condensation by HU on force, salt and HU concentration. Previous experiments at sub-physiological salt levels revealed that low concentrations of HU could compact DNA, whereas larger HU concentra...