Genomics and world health： hopes and realities

The completion of the human genome project was accompanied by quite remarkable claims about the benefits for health that would follow this out-standing scientific endeavour.In this short article,I shall try to put some of these claims into perspective.Currently,the poorer countries of the world are still suffering from the effects of malnutrition,ineffective healthcare systems,and the scourges of tuberculosis,malaria,and HIV/AIDS.The richer countries are attempting to deal with the costs of…     

Nutritional evaluation of caseins and whey proteins and their hydrolysates from Protamex

Whey protein concentrate （WPC 80） and sodium caseinate were hydrolyzed by Protamex to 5%, 10%, 15%, and 20% degree of hydrolysis （DH）. WPC 80, sodium caseinate and their hydrolysates were then analyzed, compared and evaluated for their nutritional qualities. Their chemical composition, protein solubility, amino acid composition, essential amino acid index （EAA index）, biological value （BV）, nutritional index （NI）, chemical score, enzymic protein efficiency ratio （E-PER） and in vitro protein digestibility （IVPD） were determined. The results indicated that the enzymatic hydrolysis of WPC 80 and sodium caseinate by Protamex improved the solubility and IVPD of their hydrolysates. WPC 80, sodium caseinate and their hydrolysates were high-quality proteins and had a surplus of essential amino acids compared with the FAO/WHO/UNU （1985） reference standard. The nutritive value of WPC 80 and its hydrolysates was superior to that of sodium caseinate and its hydrolysates as indicated by some nutritional parameters such as the amino acid composition, chemical score, EAA index and predicted BV. However, the E-PER was lower for the WPC hydrolysates as compared to unhydrolyzed WPC 80 but sodium caseinate and its hydrolysates did not differ significantly. The nutritional qualities of WPC 80, sodium caseinate and their hydrolysates were good and make them appropriate for food formulations or as nutritional supplements.     

青少年运动员膳食营养状况及营养认知的调查分析

研究的主要目的是探讨青少年运动员对营养知识的掌握、饮食习惯的现状和膳食营养状况,为指导运动员合理膳食营养及开展营养知识宣传教育提供依据。研究方法：本研究以浦东新区青少年运动员为对象,共302人。采用膳食调查和营养知识和饮食习惯的问卷调查。研究结果：男、女青少年运动员的能量摄入量均不足;青少年运动员营养知识的获取方面,91%的调查对象没有接受过营养知识的教育。研究结论与建议：青少年运动员营养知识匮乏,因而导致他们对运动训练的营养补充问题掌握不好。     

SPOP Protein Revealed to Play a Key Role in Kidney Tumorigenesis

<正>The shortage of oxygen,termed as hypoxia,plays critical roles in many cancers.So far,however,very limited is known about the mechanism of hypoxia stress on the tumorigenesis.Understanding the mechanism can help the clinical treatment to many tumors.Recently,LIU Jiang’s lab from the Beijing Institute of Genomics(BIG),CAS in collaboration with the University of Chicago,     

Robust Gene Dys-Regulation in Alzheimer's Brains

<正>Recently,a team of researchers led by Prof.LEI Hongxing at the Beijing Institute of Genomics(BIG),CAS achieved a new breakthrough in their exploration into the pathogenic mechanism of the Alzheimer’s disease,a progressive neurodegenerative disorder occurring in old age.Treating and preventing Alzheimer’s disease(AD)requires better understanding of the disease’s     

大豆马铃薯面包的研制

本研究用大豆和马玲薯替代部分面粉来生产面包,通过正交实验得出最佳的配料比是:大豆5%、马铃薯15%、糖12%.添加大豆和马铃薯的面包蛋白质、粗纤维和矿物质含量都有所提高.     

富铬糯玉米芽快餐营养粉的研制

目的:试验研究了一种富铬糯玉米芽快餐营养粉配方。方法:以富铬发芽糯玉米粉为主要原料,辅以豆奶粉、麦芽糊精和蔗糖制备糯玉米芽快餐营养粉,以感官评分为评价指标,通过L9(34)正交试验对糯玉米芽快餐营养粉最佳配比进行了优化。结果:糯玉米芽快餐营养粉的最佳配方为:富铬糯玉米芽粉70%、麦芽糊精11%、豆奶粉10%、蔗糖9%。结论:研制的糯玉米芽快餐营养粉成品感官优良,冲调性好,营养丰富。     

营养因素对肉鸡肌肉生长的影响

文中通过分析多种营养因素对肉鸡肌肉生长的影响,认为在肉鸡生产中适当增加日粮中的能量和蛋白质水平,补充必需氨基酸和微量元素,采用一定的限饲技术等,均可不同程度的提高肉鸡肌肉产量,改善肌肉的品质.     

组学在中医药研究中的应用

随着后基因时代的到来,“组学”成为了生命科学领域研究的新热点,其在中医药领域也得到了广泛应用。本文就基因组学、蛋白质组学、代谢组学等“组学”技术在中医证候及中药作用机制研究中的应用进行综述。