mandelic acid/dental caries

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Contribution of ionically immobilized bovine serum albumin to the retention of enantiomers.

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The retention of the enantiomers of mandelic acid and N-benzoylalanine was studied on columns prepared by immobilizing bovine serum albumin (BSA) on an anion exchanger. The amount of BSA fixed on the column is easy to adjust and measure. The adsorption isotherms were determined. For each enantiomer,

The role of residue S139 of mandelate racemase: synergistic effect of S139 and E317 on transition state stabilization.

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Mandelate racemase (MR) from Pseudomonas putida catalyzes the specific carbon-hydrogen bond cleavage of carbon acids with high pK(a) values. To further explore the catalytic mechanism of MR, "hot spots" contributing to transition state (TS) stabilization were identified by molecular dynamics (MD)

Melanotic neuro-ectodermal tumour of infancy.

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A rare case of melanotic neuro-ectodermal tumour of infancy is presented. A 5-month-old child presented with rapidly progressing large swelling that almost filled up the opening of oral cavity. The vanillyl mandelic acid level was increased in the 24-hour urine sample of the child. Surgical excision

Hydrophobic nature of the active site of mandelate racemase.

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Mandelate racemase (EC 5.1.2.2) from Pseudomonas putida catalyzes the interconversion of the two enantiomers of mandelic acid with remarkable proficiency, stabilizing the altered substrate in the transition state by approximately 26 kcal/mol. We have used a series of substrate analogues (glycolates)

[Adrenal tumors found by chance. Surgical treatment or follow-up?].

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206 case records of the patients treated from 1985 to 1998 for various diseases of the adrenal glands were analyzed. In 39 (18.9%) patients tumors were chance finding at ultrasound examination or computer tomography of the abdominal cavity and retroabdominal space. 25 patients from this group were

Asymmetric synthesis using chiral-encoded metal.

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The synthesis of chiral compounds is of crucial importance in many areas of society and science, including medicine, biology, chemistry, biotechnology and agriculture. Thus, there is a fundamental interest in developing new approaches for the selective production of enantiomers. Here we report the

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Herbal & Natural Medicine

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