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Biomedical subjects

C Davis

Publications and source records attributed to C Davis.

At least 397 records · Page 22Linked to original sources
PubMed1978

Baked products for the fat--controlled, low--cholesterol diet.

Shortened cakes, sugar cookies, pastry, biscuits, muffins, and yeast bread were made with oil in place of hydrogenated shortening with little change in quality. Either 1 c. or 3/4 c. oil could be subsituted for hydrogenated shortening in shortened cakes, biscuits, muffins, and yeast bread. Sugar cookies were best when 1 c. oil replaced 1 c. hydrogenated shortening. Pastry was best when 3/4 c. oil was substituted for 1 c. shortening. The effect of method of mixing on product quality often was greater than the effect of the amount of oil.

Bread↗
PubMed1976

Heavy Trichuris infection and amoebic dysentery in Orang Asli children. A comparison of the two diseases.

Children with heavy Trichuris infestation were compared with paediatric amoebic dysentery patients and normal children. Heavy Trichuris infestation was diagnosed by visualization of worms on anoscopy. Patients with heavy Trichuris infection had a longer duration of disease, more frequent hospitalization and a higher rate of rectal prolapse than did patients with amoebiasis. Five Trichuris children also had clubbing. Trichuris patients had lower mean haematrocrits (27%) and serum albumin (3-3 gm%) than did patients with amoebiasis (32% and 3-7 gm% respectively). Coinfection with Shigella and Salmonella was significantly increased in patients with heavy Trichuris infection compared to both amoebic and control group children. Trichuris patients were infected with Entamoeba histolytica more frequently (46%) than normal children. Heavy Trichuris infection is the probable cause of symptoms and signs seen in these patients.

Bacterial Infections↗
PubMed1976

Arterial oxygenation and carbon dioxide tensions in the production of hypoxic electroencephalographic changes in man.

1. To investigate the interaction of hypoxaemia and blood PCO2 in the production of cerebral hypoxia, we studied six healthy men in whom acute progressive hypoxia was induced by using a rebreathing technique, while the PCO2 was kept constant. 2. At least two blood PCO2 tensions were studied in each subject. Arterial oxygen saturation was monitored continuously by ear oximetry, calibrated for each subject with arterialized blood. The onset of cerebral hypoxia was identified by the appearance of frontal slow waves (less than 5 Hz) in the electroencephalogram (EEG), which was recorded continuously with the bipolar 10-20 electrode placement system. 3. All subjects developed frontal slow waves during at least one experiment: the EEG changes were similar both within and among subjects, irrespective of the blood PCO2 value. 4. The arterial oxygen saturation at which slow-wave activity first occurred showed a significant inverse linear relationship to the PCO2 value at which hypoxia was induced. 5. The results imply that more profound levels of hypoxia are tolerated with high PCO2 values than with normal or low PCO2 values before hypoxic EEG changes become evident. Thus if eucapnia is maintained, EEG changes suggestive of cerebral hypoxia are unlikely to occur if arterial oxygen saturation remains above 75%.

Adult↗
PubMed1976

Causes of high free-thyroxine index values in sick euthyroid elderly patients.

Modest elevation of the free-thyroxine index occurs in many apparently euthyroid elderly in-patients. The present study investigated the possible relevance of drug side-effects to this problem. It appears that such side-effects associated with the use of L-Dopa, digoxin and co-trimoxazole account for a substantial proportion of the observed elevated free-thyroxine index results.

Atrial Fibrillation↗
PubMed1976

Pulmonary changes in neonatal sepsis to group B beta-hemolytic Streptococcus: relation of hyaline membrane disease.

The radiographic changes of hyaline membrane disease were seen in seven of eight infants with group B beta-hemolytic streptococcal sepsis. Hyaline membranes were found throughout the lungs of all six infants who were examined after death. The most striking finding was the presence of group B streptococci within the membranes of five infants. Streptococci were so numerous in one instance that they comprised the bulk of the membrane. Another infant uas thought to have classical hyaline membrane disease until numerous group B streptococci were found within the membranes when lung sections were examined with special stains. No other organisms were identified within the membranes of any infant. These findings suggest that infection with group B streptococcus may cause a syndrome clinically and radiologically indistinguishable from hyaline membrane disease.

Female↗
PubMed1976

Seroepidemiology of amebiasis in the Orang Asli (Western Malaysian aborigine) and other Malaysians.

The indirect hemagglutination test was used to study antibody titers to Entamoeba histolytica in different Malaysian populations. Eighty-seven percent of Orang Asli (western Malaysian aborigines) adults and 79% of Orang Asli children with acute amebic dysentery were seropositive. However, significantly fewer children (39%) with amebic dysentery had high titer responses (titer greater than or equal to 1:1,280) than did adults with amebic dysentery (76%). No correlation between proctoscopic severity and amebic titer was found. Forty-four percent of asymptomatic family members were seroresponders. Satak, an Orang Asli village located near towns, had significantly more seroresponders (32%) than did the isolated, deep jungle village, Belatim (4%).

Adult↗
PubMed1975

Transient ischemic attacks due to atherosclerosis. A prospective study of 160 patients.

Patients with transient ischemic attacks (TIAs) due to atherosclerosis were studied by aortocranial arteriography. Onset of TIAs was before age 55 in 24% and between 55 and 64 in 47%. Men exceeded women by two to one. Of 160 patients, 77 were treated medically and 82 surgically. Five died in the immediate postoperative period. In the survivors, mortality has been the same in the medically and surgically managed groups. For patients with multiple lesions, surgical reconstruction of the carotid arteries was associated with very high surgical risk. In the medically treated group, anticoagulant therapy reduced the frequency of TIAs, but did not appear to protect patients from stroke. Mortality was 23% at four years, 57% of deaths being attributable to myocardial infarction and 38% to stroke.

Adult↗
PubMed1975

Bone changes in congenital cytomegalic inclusion disease.

We report the case of a female infant born with cytomegalic inclusion disease, in whom bone changes were present in x-rays of the tibiae and femora. She was the mother's first child and was born 8 days postmature after a normal delivery; birthweight 2.52 kg. Many infarcts were seen in the placenta. The mother had a feverish illness at the 7th month of gestation, diagnosed by family doctor as influenza. No drugs had been given.

Bone Development↗
PubMed1975

Cooking frozen and thawed roasts: beef, pork, and lamb cuts.

Cooking time, yield, and palatability of paired beef, pork, and lamb roasts cooked from the frozen and thawed states were compared. Cooking time for all roasts averaged from 3 to 22 min. per pound longer for meat cooked from the frozen state. The longer cooking time from the frozen state. The longer cooking time from the frozen state was greater for roasts with a large amount of bone and for cuts cooked by braising than for less bony roasts and cuts cooked by roasting. Except for thawed beef rump roasts, which had a higher yield of cooked lean meat, yield of cooked lean meat from the various cuts of beef, pork, and lamb was not affected by the state at the start of cooking. Collectively, all pork roasts had a higher yield of cooked lean meat when cooked from the frozen state. Juiciness and natural flavor of the roasts were not affected by the state at the start of cooking. Lamb leg and rib roasts were more tender when cooked from the thawed state.

Animals↗