dental caries/برولين

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Genetic- and Lifestyle-dependent Dental Caries Defined by the Acidic Proline-rich Protein Genes PRH1 and PRH2.

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Dental caries is a chronic infectious disease that affects billions of people with large individual differences in activity. We investigated whether PRH1 and PRH2 polymorphisms in saliva acidic proline-rich protein (PRP) receptors for indigenous bacteria match and predict individual differences in

A Porous Cu(II)-MOF with Proline Embellished Cavity: Cooperative Catalysis for the Baylis-Hillman Reaction.

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l-Proline has been covalently attached in a rigid linear ligand, H4L, having an isophthalate moiety at each terminal to form the chiral ligand, H4LPRO. This linker has been used for the construction of a porous MOF, LCuPRO. The free l-proline moiety in the cavity of the framework in the presence of

Proline in a transmembrane helix compensates for cavities in the photosynthetic reaction center.

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A site-specific double mutant, in which the large aromatic residues M208Tyr and L181Phe in the interior of the photosynthetic reaction center (RC) complex were replaced by smaller threonine residues, showed a dramatic reduction in the number of assembled complexes and was incapable of photosynthetic

Susceptibility to dental caries and the salivary proline-rich proteins.

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Early childhood caries affects 28% of children aged 2-6 in the US and is not decreasing. There is a well-recognized need to identify susceptible children at birth. Caries-free adults neutralize bacterial acids in dental biofilms better than adults with severe caries. Saliva contains acidic and basic

Human parotid proline-rich proteins: correlation of genetic polymorphisms to dental caries.

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Parotid saliva contains a variety of proline-rich proteins. This study found that, among 306 children between the ages of 5 to 15 years, there is a significant increase in the decayed-missing-filled tooth surface (DMFS) score of the permanent teeth with age in children with the specific proline-rich

Transmembrane domain II of the Na+/proline transporter PutP of Escherichia coli forms part of a conformationally flexible, cytoplasmic exposed aqueous cavity within the membrane.

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The Na+/proline transporter PutP of Escherichia coli is a member of a large family of Na+/substrate symporters. Previous work on PutP suggests an involvement of the region ranging from Asp-55 to Gly-58 in binding of Na+ and/or proline (Pirch, T., Quick, M., Nietschke, M., Langkamp, M., Jung, H.

Oral Lactobacilli and salivary acidic proline-rich proteins (APRP-1/2) in dental caries.

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A previous study shows that levels of acidic salivary proline-rich phosphoproteins-1/2 (APRP-1/2) increase with caries severity. The aim of this study was to examine whether this relationship also depends on the presence of H2O2-producing strains of Lactobacillus spp. Adults with severe caries

Acidic proline-rich protein Db and caries in young children.

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Polymorphic, acidic proline-rich proteins (PRPs) in saliva influence the attachment of bacteria associated with caries. Our aims were to detect one of three acidic PRP alleles of the PRH1 locus (Db) using polymerase chain-reaction (PCR) on genomic DNA, and to determine its association with caries.

The association of basic proline-rich peptides from human parotid gland secretions with caries experience.

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To address whether there are associations between the peptide composition of human parotid saliva and dental decay (caries) experience, we have characterized the peptides from parotid ductal saliva collected from nine adults who have remained free from dental caries (mean age = 59.2; Decayed Missing

Cavity-supported HPLC of cis/trans isomers of proline-containing peptides using cyclodextrins and calixarenes.

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Fascioliasis: role of proline in bile duct hyperplasia.

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In animals fascioliasis, extensive hyperplasia of the main bile duct occurs that often results in enlargement of the duct to more than 20 times the normal. We report that proline infused into the abdominal cavity of rats caused hyperplasia of the bile duct resembling that produced in the early

New anti-fibrotic mechanisms of n-acetyl-seryl-aspartyl-lysyl-proline in silicon dioxide-induced silicosis.

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OBJECTIVE We previously reported that tetrapeptide N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) inhibited pulmonary inflammation and fibrosis in SiO(2)-induced silicosis. This study aimed to explore the precise mechanism involved. METHODS Rats were divided into 3 groups: 1) sham (saline), 2)

Direct evaluation of the antioxidant properties of salivary proline-rich proteins

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Proline-rich proteins are associated with the formation of an acquired protein layer overlying the tooth enamel surface. Previous studies have described the antioxidant activity of salivary histatin against the hydroxyl radical from Fenton's reaction, acting as the critical reactive oxygen species.

A gene encoding a protein with a proline-rich domain (MtPPRD1), revealed by suppressive subtractive hybridization (SSH), is specifically expressed in the Medicago truncatula embryo axis during germination.

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A gene MtPPRD1, encoding a protein of 132 amino acids containing a proline-rich domain (PRD), has been revealed by suppressive subtractive hybridization (SSH) with two mRNA populations of embryo axes harvested immediately before and after radicle emergence. Although at the protein level MtPPRD1

Endogenous nitrosation in the oral cavity of chewers while chewing betel quid with or without tobacco.

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In order to evaluate endogenous nitrosation in the oral cavity of chewers of betel quid with tobacco (BQT) or without tobacco (BQ), saliva samples were collected from healthy male volunteers after chewing sequentially (i) unmodified BQT or BQ, (ii) BQT or BQ to which proline has been added, and

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