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Y Ramot

Publications and source records attributed to Y Ramot.

28 records · Page 2Linked to original sources
PubMed1990

The dynamics of the subtalar joint in sudden inversion of the foot.

The human subtalar joint was modelled as a quasi-linear second-order underdamped system to simulate sudden inversion motion of the foot relative to the shank. The model was fed with experimental data obtained from six subjects on a specially constructed apparatus. A total of 35 deg inversion was produced on the tested leg rapidly enough (lasting less than 40 ms) in order to ensure that the protective muscles are not activated. The parameters of the joint were evaluated and the following ranges were obtained at 35 deg inversion: elastic stiffness 14-52 Nm rad-1, damping coefficient 1.4-2.9 Nms rad-1, and natural frequency 78-125 Hz. The effects on the test parameters of weight bearing amount, foot dominance, and protective footwear were studied on one subject.

Adult↗
PubMed1990

Prevalence of thyroid disorders among the elderly in Israel.

The prevalence of thyroid disorders was investigated in 698 elderly people (443 women and 255 men), registered in special family health clinics of the Israel Ministry of Health and in two homes for the aged. The first screening was done by serum thyroxine (total T4) examination, and those with values greater than 150 nmol/l or less than 64 nomol/l underwent further laboratory and clinical evaluation in our endocrinological service. Hypothyroidism was diagnosed in 12 women and 5 men (2.5% of the cohort) and hyperthyroidism in 10 women and 1 man (1.5% of the cohort); thus the prevalence of thyroid disorders among the elderly was 4% in this population.

Aged↗
PubMed1989

Secondary amenorrhea in two sisters with hypogonadotropic hypogonadism and progressive cerebellar ataxia.

The association of familial hypogonadism with progressive cerebellar ataxia is only rarely encountered. Both primary hypergonadotropic and secondary hypogonadotropic hypogonadism may appear with cerebellar ataxia. However, many of these patients suffer from a variety of neurological and/or somatic malformations. Females, which are relatively rarely affected, display primary amenorrhea. In this report, two sisters presented with secondary amenorrhea prior to the appearance of progressive cerebellar ataxia and were found to have hypogonadotropic hypogonadism. This unique family displays clinical evidence for the presence of a possible common mechanism responsible for progressive hypothalamic and cerebellar impairment of late onset.

Adult↗
PubMed1985

Mitral valve prolapse in hyperthyroidism of two different origins.

The prevalence of mitral valve prolapse was investigated in 126 patients with hyperthyroidism due to Graves' disease or toxic nodular goitre and that of hyperthyroidism in 64 patients with mitral valve prolapse. One hundred and eleven asymptomatic healthy subjects comprised a control group. The patients with hyperthyroidism were divided into those with Graves' disease and those with toxic nodular goitre. Of the group as whole, 12 (9.5%) patients had mitral valve prolapse compared with six (5.4%) in the control group, but the difference was not statistically significant. The prevalence of mitral valve prolapse in the patients with toxic goitre was also not significantly different from that in the controls. When the prevalence in the group with Graves' disease was compared with that in the control group (16.3% vs 5.4%) the difference was significant. Only one patient with mitral valve prolapse had hyperthyroidism.

Adult↗
PubMedDate not supplied

Type II diabetes mellitus, congestive heart failure, and zinc metabolism.

Zinc status was assessed in patients with type II diabetes mellitus and congestive heart failure (CHF). Three groups of patients were enrolled into the study: Group 1: 15 patients with type II diabetes mellitus and CHF; Group 2: 20 patients with isolated type II diabetes mellitus; and Group 3: nine patients with isolated CHF. Twenty-four-hour urine was measured for creatinine, protein, and zinc, and blood was drawn for creatinine, proteins, liver enzymes, hemoglobin A1c, and zinc. Insulin treatment and hemoglobin A1c were comparable in the diabetic patients of groups 1 and 2, but group 1 was also treated with captopril and diuretics like the CHF patients of group 3. Plasma zinc levels were statistically similar in all three groups, but urinary zinc excretion (mumol/24 h) and urinary zinc: creatinine (mumol/mmol) ratio were significantly higher in the type II diabetics and CHF group (27.2 +/- 1.5; 1.69 +/- 0.6, respectively) compared to the diabetic patients alone (19.4 +/- 0.76; 0.97 +/- 0.3, respectively) and the CHF patients (9.7 +/- 0.3; 0.62 +/- 0.3, respectively). and the CHF patients (9.7 +/- 0.3; 0.62 +/- 0.3, respectively). Patients with type II diabetes mellitus and CHF were treated with higher doses of captopril than the CHF patients (56.25 +/- 24 mg vs 18.8 +/- 11 mg P < 0.05). Thus, patients with type II diabetes mellitus and CHF excrete larger amounts of zinc, which may eventually lead to zinc deficiency.

Aged↗