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C-lobe of lactoferrin: the whole story of the half-molecule.

ABSTRACT: Lactoferrin is an iron-binding diferric glycoprotein present in most of the exocrine secretions. The major role of lactoferrin, which is found abundantly in colostrum, is antimicrobial action for the defense of mammary gland and the neonates. Lactoferrin consists of two equal halves, designated as N-lobe and C-lobe, each of which contains one iron-binding site. While the N-lobe of lactoferrin has been extensively studied and is known for its enhanced antimicrobial effect, the C-lobe of lactoferrin mediates various therapeutic functions which are still being discovered. The potential of the C-lobe in the treatment of gastropathy, diabetes, and corneal wounds and injuries has been indicated. This review provides the details of the proteolytic preparation of C-lobe, and interspecies comparisons of its sequence and structure, as well as the scope of its therapeutic applications.

SUBMITTER: Sharma S

PROVIDER: S-EPMC3671519 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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C-lobe of lactoferrin: the whole story of the half-molecule.

Sharma Sujata S Sinha Mau M Kaushik Sanket S Kaur Punit P Singh Tej P TP

Biochemistry research international 20130515

Lactoferrin is an iron-binding diferric glycoprotein present in most of the exocrine secretions. The major role of lactoferrin, which is found abundantly in colostrum, is antimicrobial action for the defense of mammary gland and the neonates. Lactoferrin consists of two equal halves, designated as N-lobe and C-lobe, each of which contains one iron-binding site. While the N-lobe of lactoferrin has been extensively studied and is known for its enhanced antimicrobial effect, the C-lobe of lactoferr ...[more]

PMID: 23762557

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Project description:BackgroundMedical educators have promoted self-directed learning (SDL) as an important means of enabling students to take responsibility for their own learning throughout their training and practice. While SDL has been well-studied in classroom settings, it remains a story half told: barriers to and facilitators of SDL in the clinical setting are not yet well described. The goals of this study were to explicate student experiences of SDL in their clinical training and to identify the roles that local social and cultural contexts play in shaping their experiences of SDL.MethodsTo understand students' conceptualization and experiences of SDL in the clinical setting, we carried out a qualitative study with 15 medical students at Harvard Medical School. The semi-structured interviews were recorded and transcribed. Using an interpretivist approach, data were analyzed both deductively and inductively using the Framework method of content analysis.ResultsParticipants described patient care activities as primary motivators for engagement in SDL in the clinical setting. Participants' descriptions of SDL aligned with Knowles' steps in SDL, with an additional step of consolidation of learning related to their patients' diagnosis and management. Participants described using a range of cognitive, social-emotional, and peer learning strategies to enhance their SDL. Participants who described a growth mindset appeared to engage in SDL more easily. Learning environments that fostered SDL were those in which faculty and residents demonstrated an educational orientation, promoted psychological safety, and invited student engagement. Teams with perceived excessive work demands were perceived to be less supportive of SDL.ConclusionsOur study enhances previous classroom-based models of SDL by providing specific, practical implications for both students and faculty in the clinical training setting. Participants described SDL in the clinical setting as patient-centered, and when effectively implemented, SDL appears to support a mastery rather than performance orientation. Our study paves the way for improving medical students' clinical SDL and helping them become lifelong learners in the field of medicine.

Dataset Information

C-lobe of lactoferrin: the whole story of the half-molecule.

Publications

C-lobe of lactoferrin: the whole story of the half-molecule.

Similar Datasets

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