bo·ron (B),

(bōr'on),

A nonmetallic trivalent element, atomic no. 5, atomic wt. 10.811; occurs as a hard crystalline mass or as a brown powder; forms borates and boric acid.

[Pers. Burah]

Farlex Partner Medical Dictionary © Farlex 2012

boron

A trivalent nonmetallic element, (atomic number 5; atomic weight 10.81).

Alternative medicine
Boron is believed by alternative health workers to be useful in pregnancy and menopause as it increases oestrogens; they also believe in boron deficiency.

Boron-rich foods
Almonds, beans, honey, lentils, peas, peaches, pears and raisins.

Molecular biology
A mutation of SLC4A11, which encodes a transporter that regulates intracellular boron levels, results in congenital endothelial dystrophy type 2, a rare form of corneal dystrophy.

Nutrition
Boron is non-toxic to humans; while boron is needed for certain cellular activities, a boron deficiency state is not known to exist.

Physics
Boron is used in physics as a neutron-absorber.

Physiology
Boron is a trace mineral needed for proper absorption and utilisation of calcium to maintain bone density, and may help prevent postmenopausal osteoporosis; daily supplements of boron may help retain dietary calcium, magnesium and phosphorus, and increase production of oestrogen and testosterone. It is also thought to safely promote muscle growth by body-builders.

bo·ron

(B) (bōr'on)

A nonmetallic trivalent element, atomic no. 5, atomic wt. 10.811; occurs as a hard crystalline mass or as a brown powder, and forms borates and boric acid. A nutritional need has been reported in pregnant women.

[Pers. Burah ]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive

Phenyl boronic acid did not reduce the MIC of any isolate except for one K.

High prevalence of CTX-M-1 group in ESBL-producing enterobacteriaceae infection in intensive care units in southern Chile

(MIC = minimal inhibitory concentration; CDT = combined disc test; APBA = aminophenyl boronic acid; MH = Mueller-Hinton agar; MHCLX = Mueller-Hinton agar containing cloxacillin; EDTA = ethylenediaminetetra-acetic acid.

Phenotypic and genotypic correlation of carbapenememase-producing Enterobacteriaceae and problems experienced in routine screening

Combined disc diffusion test using Phenyl boronic acid (PB): The differences in inhibition zones for cefoxitin (30 [micro]g) discs alone and in combination with 400 [micro]g of phenylboronic acid (PB) (120 mg dissolved in 3 mL dimethyl sulfonic acid + 3 mL distilled water) [HiMedia laboratories, Mumbai, India] were determined.

DETECTION OF AMPC BETA LACTAMASES IN CEFOXITIN-RESISTANT GRAM-NEGATIVE CLINICAL ISOLATES USING PHENYLBORONIC ACID

Pan, "Bifunctional porous polymers bearing boronic and sulfonic acids for hydrolysis of cellulose," ACS Sustainable Chemistry & Engineering, vol.

Chemocatalytic Conversion of Cellulose into Key Platform Chemicals

Thermodynamics of boroxine formation from the aliphatic boronic monomers R-B[(OH).sub.2] (R = H, [H.sub.3]C [H.sub.2]N, HO, and F): a computational investigation.

Density Functional Theory Calculations on Nitrated Boroxines as Possible High Energy-Density Materials

Heterocycles such as rhodanine and related compounds have shown a range of biological activities such as anticancer, antibacterial, antidiabetic and antiviral as have boronic acid-containing compounds.

Biochemistry & Molecular Biology

Boronic acid disk test was used for detection of Amp C producers.

FREQUENCY OF EXTENDED SPECTRUM [beta]-LACTAMASES (ESBLS) AND AMP C [beta]-LACTAMASE PRODUCING ESCHERICHIA COLI AND KLEBSIELLA PNEUMONIAE ISOLATED FROM NEONATAL SEPSIS IN A TERTIARY CARE HOSPITAL, LAHORE

Zuniga et al., "Rapid multi-well assay for the analysis of sugar gut permeability markers: discrimination of sugar alcohols with a fluorescent probe array based on boronic acid appended viologens," Analytical Chemistry, vol.

Parallel Changes in Harvey-Bradshaw Index, TNF[alpha], and Intestinal Fatty Acid Binding Protein in Response to Infliximab in Crohn's Disease

[17] reported the pattern-based discrimination of six wine varietals by a 3 x 3 indicator displacement array composed of three boronic acid receptors and three colorimetric indicators.

Geographical Origin Traceability of Red Wines Based on Chemometric Classification via Organic Acid Profiles

Further research in this area has shown that many other ruthenium complexes, such as Ru[(bpy).sub.2] [(phendione).sup.2+], are also effective alternatives to Ru[(bpy).sub.2] [(phen-N[H.sub.2]).sup.2+], and that boronic acids, including APBA, also can serve as surface adhesives [6].

Fabrication of Photomagnetic Carbon Surfaces via Redox Assembly