[Differentiation of joints in transplants developing on chorioallantois]. / Differentsirovka sustavov v transplantatakh, razvivaiushchikhsia khorioallantoise.

The wing of the chick embryos (the 17th-21st stages of development according to Hamburger--Hamilton) were transplanted on the chorioallantois of the chick embryo-recipients, incubated for 8.5-9.5 days. Differentiation of the joints was studied in serial histological sections and in translucent preparations of the skeleton stained with alcian blue. The transplants for the investigation were taken on the 1st-11th days after transplantation. In the transplants all three segments of the wing always developed. The development of the external form of the extremity, chondrogenesis and osteogenesis of the skeletal anlages were about 24 h late. Histological changes, specific for the early period of the articular interzone and cleft formation corresponded to the control embryos data, but were one day younger. In future the changes did not progress, and passed into regression, demonstrating as fusion of the articular surfaces. In the transplants blood vessels formed networks of irregular form that surrounded the articular zones. Some branches run from them into mesenchyme, situating around the joint. According to the literature data, these vessels are connected with formation of the articular cleft and in the control embryos blood vessels of the articular capsule develop from them. In the transplants they are dilated, twisted (especially in the ulnar joint area) and do not penetrate into the developing prechondral and then into the cartilage bridges of the fusing articular surfaces. Numerous blood accumulations, as well as extravasates are often seen near the deformed anlages of bones. Thus, disturbance of blood supply in the transplants and lack of innervation in them, discussed in the literature, result in fusion of the articular surfaces.

[Nutritional status of workers from the viewpoint of their physical development]. / Sostoianie pitaniia rabochikh v aspekte ikh fizicheskogo razvitiia.

A total of 5665 workers of food and light industry were studied according to the investigation program on nutritional state during 1979-1983. Height, chest diameter, body mass and somatotype of each examinee (according to the Stremgren index) were determined. The contingent of workers studied was represented by age groups in decades from 18 to 70 years. While analyzing the nutritional state they were divided into 9 categories. The weight ranging from -10 to +9% of the optimal weight was considered to be normal. Men working in food industry showed increasing age groups having overweight beginning from 31-40 years of age. The percentage of women with overweight working in food industry was from 52.91 to 83.44. Obese women constituted a high percent. A similar nutritional state was recorded in women working in light industry: 90.38% had overweight at the age of 51-60 years. The analysis of the body mass among the eldest men and women, especially, (60-70 years) shows that those with lower body weight are more capable of working at the age of pension.

[Effect of lofenal on rat embryogenesis]. / Vliianie lofenala na émbriogenez krys.

The embryotoxic and teratogenic effect of lofenal was studied at different stages of embryogenesis of albino rats. Postimplantation death of embryos and foetus anomalies are stated to depend on both the dose of the administered preparation and on the period of embryogenesis.

[Schoolchild nutrition in the Lithuanian SSR]. / K voprosu o pitanii shkol'nikov Litovskoi SSR.

The nutrition of schoolchildren was studied on the ground of questionnaires, physiological characteristics of the schoolchildrens' organism, by considering their protein and vitamin C allowances and also by the nourishment status of children, these being classified according to groups of physical development adopted in the USSR.

[The sexually depended influence of congenital vitia cordis for the physical development of children (author's transl)]. / Der geschlechtsabhängige Einfluss angeborener Herzfehler auf die physische Entwicklung des Kindes.

With anthropometrical methods were investigated 1000 children with congenital Vitium cordis. It was found that congenital Vitium cordis caused a retardation of physical and sexual development. It is particularly clear in the sexual period of maturity and the puberty. The retardation is quite stronger in the male as in the female children. The results are demonstrated in tables and graphs.