Effects of dietary protein quality and quantity on albino rat tissue serum protein ; erythrote fragility and bone mineral content

The study was to ascertain the effect of quality and quantity of dietary protein on body growth; organ cellular and cytoplasmic size; serum protein concentration and molecular weights; erythrocyte fragility and bone mineralisation. Diets containing 20; 17 and 15protein were fed to Sprague Dawley Albino rats weighing about 90g for 21 days. The 20protein diet was a commercial diet better in nutrient composition and quality than the diet containing 17 and 15protein formulated in our laboratory. At the end of 21 days; kidney; testes; brain; pancreas; spleen and long bones ere taken for analysis. Results showed that the diet containing 20protein supported higher body weight; liver and testes cell size (Protein/DNA and weight/DNA ratios) and cytoplasmic size (RNA/DNA ratio). The pancreas cell size; heart; brain; pancreas and spleen cytoplasmic size were not changed by dietary protein level. Plasma protein concentration and the molecular weights; percent bone cash and percent calcium in it were the same at the three levels of dietary protein. TCA soluble plasma amino acid concentration was higher at 20dietary protein. Erythrocyte fragility was higher but erythrocyte ghost protein was lower at dietary protein below 20

Effects of Dietary Protein Quality and Quantity on Albino Rat Tissue Serum Protein; Erythrocyte Fragility and Bone Mineral Content

The study was to ascertain the effect of quality and quantity of dietary protein on body growth; organ cellular and cytoplasmic size; serum protein concentration and molecular weights; erythrocyte fragility and bone mineralisation. Diets containing 20; 17 and 15protein were fed to Sprague Dawley Albino rats weighing about 90g for 21 days. The 20protein diet was a commercial diet better in nutrient composition and quality than the diet containing 17 and 15protein formulated in our laboratory. At the end of 21 days; kidney; testes; brain; pancreas; spleen and long bones ere taken for analysis. Results showed that the diet containing 20protein supported higher body weight; liver and testes cell size (Protein/DNA and weight/DNA ratios) and cytoplasmic size (RNA/DNA ratio). The pancreas cell size; heart; brain; pancreas and spleen cytoplasmic size were not changed by dietary protein level. Plasma protein concentration and the molecular weights; percent bone cash and percent calcium in it were the same at the three levels of dietary protein. TCA soluble plasma amino acid concentration was higher at 20 dietary protein. Erythrocyte fragility was higher but erythrocyte ghost protein was lower at dietary protein below 20

Patients seen in emergency departments who had a prior visit within the previous 72 h-National Hospital Ambulatory Medical Care Survey, 2002.

OBJECTIVE: This study characterized emergency department (ED) visits of patients who had received services in an ED within the previous 72 h. METHODS: ED data from the National Hospital Ambulatory Medical Care Survey were analysed for: (a) infectious-disease-related visits; (b) infectious-disease-related return visits; and (c) return visits reported within the previous 72 h for all visits. Data were collected from a nationally representative sample of hospital EDs and were weighted to generate national estimates. RESULTS: In 2002, an estimated 20.5 million ED visits occurred in the USA for infectious diseases, for a visit rate of 73/1,000 people. A total of 3.5 million total return visits to EDs occurred within 72 h, and 67% were for follow-up visits. An estimated 625,280 return visits were for infectious diseases (18% of total ED return visits); 72% of these were for follow-up services. For total visits and infectious-disease-related visits, the majority of return visits were reported among those aged 25--44 years and among females. DISCUSSION: Approximately seven of every 10 return visits to EDs in 2002 were for follow-up services, and no difference existed in the percentage of return visits for infectious diseases compared with total visits. A health services implication exists for treating this percentage of patients in EDs when primary care practitioners should be the point of contact.

Fatal on-farm injuries among youth 16 to 19 years of age: 1982-1994.

Data from the Vital Statistics Mortality (VSM) public use file and the National Traumatic Occupational Fatalities (NTOF) surveillance systems were used to describe fatal injuries among youth 16-19 years of age in the United States that occurred on farms for the years 1982 through 1994. The VSM captures all deaths in the United States, while the NTOF only captures occupational injury deaths. There were 550 total on-farm fatalities to youth 16-19 years of age in the VSM, and 221 occupational on-farm deaths from the NTOF for the same age group. These numbers suggest that 40% of the on-farm deaths were occupational. It was found that the proportions of deaths attributable to work increased with age. Fatality rates for on-farm nonoccupational deaths decreased slightly during the time period (from 8.4 deaths/100,000 for 1982-1985 to 6.8 deaths/100,000 for 1991-1994), while on-farm occupational fatality rates dropped dramatically (12.0 deaths/100,000 for 1982-1985 down to 4.9 deaths/100,000 for 1991-1994). The leading causes of death for on-farm occupational fatalities were machinery (54%) and electrical current (20%). The most common causes of on-farm fatalities that were nonoccupational were drowning (38.9%) and firearms (28.6%). For the years 1991 through 1994, drowning and firearms accounted for approximately the same number of on-farm deaths as machinery. Nonoccupational risks are a concern for youth 16-19 years of age on the farm.

Non-fatal animal related injuries to youth occurring on farms in the United States, 1998.

OBJECTIVE: To provide data on the magnitude and patterns of animal related on-farm injuries to youth in the United States. DATA SOURCE: A survey of 26,000 farm households conducted for the National Institute for Occupational Safety and Health by the United States Department of Agriculture in 1998. SUBJECTS: Youth younger than 20 years of age. RESULTS: There were an estimated 6,438 animal related on-farm injuries to youth in 1998. 70% occurred to farm residents; 69% were work related. Males accounted for 64% and approximately 41% occurred to those younger than 10; 37% involved horses and 31% cattle. Most horse related injuries occurred to females and a majority of the cattle related injuries were to males. Additionally, most of the cattle related injuries were work related, while horse related injuries were mainly nonwork. CONCLUSIONS: One out of every five youth injuries occurring on farms in the United States is animal related. These animal related injuries were due to both work and non-work related exposures. The large number of horse and cattle related injuries highlights a need for intervention strategies based on the injury circumstances common to these animals.

Fatal harmful substances or environmental exposures in agriculture, 1992 to 1996.

Data from the Census of Fatal Occupational Injuries surveillance system from 1992 through 1996 were analyzed to allow a better understanding of exposures to harmful substances or environments that resulted in agricultural work fatalities. There were 357 fatalities as a result of these exposures in the agriculture production and agriculture services sectors, representing 10% of all work-related deaths that occurred in these industry sectors during this period. Contact with electric current represented 52.9% of these fatalities. Agricultural services reported 87 electrocutions, 50 of which occurred among tree trimmers. The events most likely to result in fatalities were contact with overhead power lines (26.3%) and drowning (17.1%). The overall fatality rate was 2.1 deaths per 100,000 workers. The development of appropriate hazard-awareness training for workers, such as that for electrical and drowning-related hazards, may help prevent future deaths in these industry sectors.