Advertisement

Topics

Infrared and Raman studies on renal stones: the use of second derivative infrared spectra.

Summary of "Infrared and Raman studies on renal stones: the use of second derivative infrared spectra."

Urolithiasis is a very frequent illness found in Argentina; however, stone analysis is not routinely performed. In this work, 86 renal calculi (from cities of Luján and San Antonio de Areco, State of Buenos Aires, Argentina) have been analyzed by infrared and Raman spectroscopies, and the results correlated with the main possible pathological conditions. Calcium oxalate monohydrate (whewellite) and mixtures of calcium oxalate monohydrate and carbonate apatite were the most frequent compounds found in our samples. In order to improve the identification of different phases present in calculi [particularly whewellite and weddellite (calcium oxalate dihydrate)], the second derivative spectra were used. The FTIR spectroscopy together with the second derivative analysis provides the urologist with a good method for calculi component determinations.

Affiliation

Departamento de Ciencias Básicas, Universidad Nacional de Luján, Rutas 5 y 7, Luján, Argentina, jguerra@coopenetlujan.com.ar.

Journal Details

This article was published in the following journal.

Name: Urological research
ISSN: 1434-0879
Pages:

Links

DeepDyve research library

PubMed Articles [17468 Associated PubMed Articles listed on BioPortfolio]

Application of imaging techniques to cases of drug-induced crystal nephropathy in preclinical studies.

A number of drugs can cause precipitates within renal tubules leading to crystal nephropathy. Crystal nephropathy is usually an exposure-related finding and is not uncommon in preclinical studies, whe...

A comparative study of mud-like and coralliform calcium carbonate gallbladder stones.

To gain insight to underlying mechanism of the formation of calcium carbonate (CaCO3 ) gallbladder stones, we did comparative study of stones with mud appearance and those with coralliform appearance....

First Clinical Experience with Extracorporeally Induced Destruction of Kidney Stones by Shock Waves.

We performed extracorporeally induced destruction of kidney stones on 72 patients. No complications have resulted from the tissue exposure to high energy shock waves. Clearance studies before and afte...

Instant detection and identification of concealed explosive-related compounds: Induced Stokes Raman versus infrared.

The instant detection of explosives and explosive-related compounds has become an urgent priority in recent years for homeland security and counter-terrorism applications. Modern techniques should off...

Fourier transform infrared and Raman spectroscopy in the study of phase transitions in dipyrazolium iodide triiodide: Experimental and theoretical analysis.

The paper presents the Infrared and Raman spectra of the powdered [C3N2H5(+)]2[I(-)∙I3(-)] crystal at the temperature intervals of 11-270K, covering two low-temperature phase transitions: discontinu...

Clinical Trials [3414 Associated Clinical Trials listed on BioPortfolio]

Energy Specific Far Infrared Radiation Treatment for Sciatica

A preliminary study to determine the use of far infrared radiation for the treatment of back pain

A Study to Evaluate the Effect of Far Infrared Radiation for Cancer Treatment

Cancer is the number one killer in Canada and in most countries of the world. The investigators' initial assessment indicates that far infrared radiation has the potential to cure cancer.

Using Infrared Spectroscopy for Diagnosis Severity of Nonalcoholic Fatty Liver Disease

The main objective of this study is to evaluate the ability of infrared spectroscopy to discriminate simple hepatic steatosis from NASH

Far Infrared Radiation Treatment for Uterine Fibroids

A preliminary study to determine the efficacy of using energy specific far infrared (FIR) radiation for the treatment of uterine fibroids.

Energy Specific Far Infrared Radiation Treatment for Erectile Dysfunction

A preliminary study to determine the possibility of using far infrared (FIR) radiation to treat impotency.

Medical and Biotech [MESH] Definitions

Measurement of the regional temperature of the body or an organ by infrared sensing devices, based on self-emanating infrared radiation.

That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.

Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.

Stones in the URETER that are formed in the KIDNEY. They are rarely more than 5 mm in diameter for larger renal stones cannot enter ureters. They are often lodged at the ureteral narrowing and can cause excruciating renal colic.

Quick Search
Advertisement
 


DeepDyve research library

Relevant Topics

Nephrology - kidney function
Nephrology is a specialty of medicine and pediatrics that concerns itself with the study of normal kidney function, kidney problems, the treatment of kidney problems and renal replacement therapy (dialysis and kidney transplantation). Systemic conditions...

Nutrition
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...


Searches Linking to this Article