Child Nutrition Sciences ; Health Knowledge, Attitudes, Practice ; Humans ; Physicians

The discipline of nutrition has been developing quickly in the past 30 years in China,and a number of scientific progress has been achieved.Some new discoveries have been unveiled in terms of treatment and prevention of liver carcinoma,colon cancer,and breast cancer by certain nutrients.Besides,the application of nutrition in the prevention and treatlnents of metabolic diseases such as obesity.diabetes mellitus and congenital malfcIrmation has been studied.Furthermore,academic achievements in the treatment of tumor and metabolic diseases by integrating nutritional therapies has also been made.The establishment of relevant organizations and institutes as well as the prosperous performance of nutrition education contribute to the development of discipline of nutrition in China.

Objective The purpose of this study was to examine the effects of exercise training on cardiac function and automatic nervous activity in patients with coronary artery disease(CAD) following PTCA or intracoronary stent implantation. Methods For this study, 37 CAD patients (28 men and 9 women; aged 56.23 ?11.16 years) participated in a supervised 8-week training program with 35 healthy controls(27 men and 8 women; aged 55.72 ?10.34 years). Cardiac function was assessed with indexes obtained during exercise testing using the standard Bruce protocol (submaximal gradural treadmill exercise) before and after 8 weeks training. Meanwhile, heart rate variability (HRV) was used to value the automatic nervous activity. Results After 8 weeks, the margin between maximal HR and resting HR (△HR=HR max-HR resting) was significantly broader (P

Air ; analysis ; Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Cyclohexanones ; analysis ; Workplace

Energy metabolism refers to the metabolism of three major nutrients associated with the process of energy production and usage.The metabolism in patients with tumors manifests specifically, as a result of tumor-bearing state, host's response to tumor and anti-neoplastic therapy.It is believed that resting energy expenditure increases in patients with newly diagnosed tumors, which is related to C-reactive protein and release of inflammatory cytokines. After eflfectjve therapy,resting energy expenditure decreases in some degree.In addition,the stage and differentiation of tumors also affect metabolism.However,there are some conflicts among research findings.The characteristics of energy metabolism and influential factors in patients with tumors are reviewed in this paper.

Respiratory viral infections are the most common cause of infantile wheezing, as well as one of the major inducents of acute exacebarbations of chronic childhood asthma. Recent studies focus on the mechanism of virus-induced airway inflammatory response which is still not completely clear. Many new pathophysiologic mechanisms such as epigenetics are advanced to explain the association between viral respiratory infections and asthma attack. In the present reports, recent data on the role of early-life viral infections in the development and progression of childhood asthma are reviewed.

Parenteral nutrition associated cholestasis (PNAC) mainly occurs in children. Currently identified risk factors include premature infants, lack of enteral feeding, repeated infections, and toxicity or nutrient deficiency of parenteral nutrition solution. Recent studies have shown that nuclear receptor-mediated bile acid transporter may be the key site of PNAC pathogenesis, in which some cytokines play important roles. New anti-cholestatic therapy based on the regulation of expression of these molecules may prevent end-stage liver disease caused by PNAC.

Perioperative nutrition support may be required when the synthesis and utilization of nutrients become disordered due to gastrointestinal abnormalities and trauma anesthesia. Proper nutrition support can reduce or prevent malnutrition, and thus facilitate the recovery and lower complications and case-fatality rate.

Overnutrition during the early postnatal life,a critical time window for growth and development,may induce metabolic syndrome later in life,including overweight/obesity and insulin resistance.The important target organs of insulin,such as liver,adipose tissue,skeletal muscle,and central nervous systems show insulin resistance.The involved mechanisms include abnormality of insulin signal pathway,increment of free fatty acid and some adipocytokines,oxidative stress,maladjustment of orexigenic and anorexigenic neuron,modifications of the hypothalamic-pituitary-adrenal glucocorticoid axis as well as epigenetic,etc.Hence,overnutrition should be avoided during the early postnatal life,so as to decrease the risk of developing long-term insulin resistance.

Peripherally inserted central catheter(PICC) is now often used in pediatric patients.PICC is easily inserted,safe,and cost-effective.Although it has many benefits,physicians and nurses remain acutely aware of the problem involved with placement of PICC lines.This review is about the research progress of PICC line related problems.