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B Lewin

Publications and source records attributed to B Lewin.

48 records · Page 3Linked to original sources

Units of transcription and translation: sequence components of heterogeneous nuclear RNA and messenger RNA.

Defining the units in which the eucaryotic genome is transcribed and translated is central to any analysis of eucaryotic gene expression. The relationship between heterogeneous nuclear RNA and messenger RNA raises the question of whether the primary transcript may be more complex than the sequence which is translated; as I concluded last month in the first part of this review, kinetic analyses of these two RNA populations provide some suggestive indications but cannot prove whether the nuclear population includes messenger precursors that are much longer than mature cytoplasmic messengers (Lewin, 1975). Here I discuss recent analyses of the sequence components present in hnRNA and mRNA and how they may be related to each other and to the organization of the genome.

Animals↗

Physiotherapy.

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Hospitals, Special↗

The effects of physical exercise training and cardiac education on levels of anxiety and depression in the rehabilitation of coronary artery bypass graft patients.

OBJECTIVE: to evaluate whether an exercise and education-based rehabilitation programme is sufficient treatment for individuals with clinically significant levels of anxiety or depression following coronary artery bypass graft (CABG) surgery. DESIGN: follow-up and repeated assessment after surgery. SETTING: outpatient cardiac rehabilitation programme. PATIENTS: all 88 attenders after CABG surgery. ASSESSMENTS: structured interview and Hospital Anxiety and Depression (HAD) scale (using 8 as the cut-off) administered by rehabilitation nurses at start of course and HAD repeated at 12 weeks and 6 and 12 months (by post after discharge). RESULTS: return rates of 76 and 80% at 6- and 12-month assessments, respectively; statistically significant reductions in levels of anxiety and depression found between first and all subsequent assessments; subdividing into groups revealed significant reduction in anxiety and depression in the anxious and depressed groups at 12 weeks and 6 months, respectively, but at 12 months there was no significant reduction. CONCLUSIONS: there is a need to address the problems of anxiety and depression directly by screening and treatment, and to provide more psychologically-orientated cardiac rehabilitation programmes.

Coronary Artery Bypass↗

Physiotherapy.

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Hospitals, Special↗