Comparison of frequency distributions of doubled haploid and single seed descent lines in barley

Both doubled haploid (DH) and single seed descent (SSD) methods were used to derive homozygous lines from two crosses of barley. The frequency distributions of grain yield, heading date, and plant height of the DH and SSD lines were compared by the Mann-Whitney U test, Kolmogorov-Smirnov twosample test and Wald-Wolfowitz runs test. It was found that the DH lines distributed in the same manner as the SSD lines with respect to the three characters. The results indicated that although the SSD method had more opportunity for recombination than the DH method, it did not produce a sample of recombinants which differed significantly from the DH sample; thus both methods were equally efficient for use in deriving homozygous lines from F1 hybrids in a relatively short time.

I-cell disease and its rehabilitation: case study

I-cell disease is a rare inborn error of mucolipid metabolism that is characterized by generalized hypotonia, thick and tight skin, restriction of joint motion, coarse facial features, bony deformities, and an inability to stand or walk. A case was treated with gentle stretching, neurodevelopmental therapy, and strengthening exercises of both hip and knee extensor muscles. After this treatment the patient was able to ambulate with moderate support using bilateral long leg braces.

Transcutaneous electrical nerve stimulation and extensor splint in linear scleroderma knee contracture

A girl with knee flexion contracture secondary to linear scleroderma with hemiatrophy was treated with hot packs, gentle stretching and a serial posterior splint. The knee range of motion gained 35 degree over a period of 16 weeks. Nine months, later knee contracture had regressed. As an alternative method of treatment, continuous stretch was applied by using a front extension splint together with transcutaneous electrical nerve stimulation. The knee range of motion gained 55 degrees over a period of 6 weeks.

Plasma levels of antidiuretic hormone in patients receiving prolonged lithium therapy

Among 18 patients receiving prophylactic, long-term lithium treatment for manic-depressive psychosis, a high incidence of increased thirst and frequency of micturition (60-70 per cent) was noted on direct questioning. Symptoms arose at varying times after the start of lithium therapy; in no patient did symptoms antedate the use of the drug. Plasma levels of antidiuretic hormone were found, on average, to be higher than in normal control subjects for a given level of plasma osmolality, although the scatter of results was wide. It is suggested that elevation of antidiuretic hormone occurs as a compensatory mechansims for the polyuria which is a common feature of long-term lithium treatment. The more florid form of nephrogenic diabetes insipidus occasionally seen in lithium takers seems likely to be due to a different mechanism from the more common mild polyuria.