Definition: In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.
Input: The major physiological function of milk is the transport of amino acids, carbohydrates, lipids and minerals to mammalian offspring. Caseins, the major milk proteins, are secreted in the form of a micelle consisting of protein and calciumphosphate. We have analysed the role of the milk protein a-casein by inactivating the corresponding gene in mice. Absence of a-casein protein significantly curtails secretion of other milk proteins and calcium-phosphate, suggesting a role for a-casein in the establishment of casein micelles. In contrast, secretion of albumin, which is not synthesized in the mammary epithelium, into milk is not reduced. The absence of a-casein also significantly inhibits transcription of the other casein genes. a-Casein deficiency severely delays pup growth during lactation and results in a life-long body size reduction compared to control animals, but has only transient effects on physical and behavioural development of the pups. The data support a critical role for a-casein in casein micelle assembly. The results also confirm lactation as a critical window of metabolic programming and suggest milk protein concentration as a decisive factor in determining adult body weight.

Milk Lacking a-Casein Leads to Permanent Reduction in Body Size in Mice