. The effects of inanition and malnutrition upon growth and structure. Starvation; Nutrition. i66 INANITION AND MALNUTRITION Recovery upon Refeeding.—Stewart ('16) found that in young albino rats held at maintenance for several weeks, and in which the musculature was pre- sumably above normal in weight, approximately normal conditions are restored after the first week or two of refeeding upon adequate diet. In younger rats, underfed from birth to 6 or 10 weeks of age, Jackson and Stewart ('19) observed, upon refeeding to a body weight of 25-75 g. that the musculature lags behind and appears sl
. The effects of inanition and malnutrition upon growth and structure. Starvation; Nutrition. i66 INANITION AND MALNUTRITION Recovery upon Refeeding.—Stewart ('16) found that in young albino rats held at maintenance for several weeks, and in which the musculature was pre- sumably above normal in weight, approximately normal conditions are restored after the first week or two of refeeding upon adequate diet. In younger rats, underfed from birth to 6 or 10 weeks of age, Jackson and Stewart ('19) observed, upon refeeding to a body weight of 25-75 g. that the musculature lags behind and appears slightly below normal weight. Similarly in young rats refed fully after long periods of inanition, Jackson and Stewart ('20) found in most cases a slight deficit in the weight of the musculature. However, the differences are so slight and variable that their significance is somewhat doubtful. Histological Changes in the Musculature.—The histological changes also may be grouped according to those in the adult and the young, both human and Fig. 58.—-Cross section showing the his- tological structure of skeletal muscle in a man who died from starvation. The muscle fibers appear extremely atrophied and separated from the endomysium by extensive spaces. CMeyer '17.) Fig. 59.—Cross section showing the his- tological structure of cardiac muscle in a man who died from starvation. The muscle fibers appear variably atrophic and shrunken, in places separated by extensive spaces inter- mingled with the connective tissue stroma. (Meyer '17.) Adult Human.—Schultzen ('62, '63) described fat droplets and indistinct cross striation in the skeletal muscle fibers of a 19 year old girl who had starved to death. "Striationem transversam bene perspicuam reddere non licuit. Inter fibrillas magnae adipis ; Hayem ('77), in cases of starvation dur- ing and after the siege of Paris, found that the lesions in the muscle fibers appear more distinct in chronic than in a
Size: 2262px × 1105px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublis, booksubjectnutrition
