Enhanced osseointegration of drug eluting nanotubular dental implants: An in vitro and in vivo study.

Faster and predictable osseointegration is crucial for the success of dental implants, especially in patients with compromised local or systemic conditions. Despite various surface modifications on the commercially available Titanium (Ti) dental implants, the bioactivity of Ti is still low. Thus, to achieve both biological and therapeutic activity on titanium surfaces, surface modification techniques such as titanium nanotubes have been studied as nanotube surfaces can hold therapeutic drugs and molecules. The main aim of the present research work is to study the early osseointegration around the novel Simvastatin drug eluting nanotubular dental implant. In the present research, the titanium nanotubes were fabricated on the screw-shaped dental implant surface and the Simvastatin drug was loaded into the nanotubes using the ultrasonication dip method. In vitro and In vivo studies were carried out on the modified dental implants. In vitro cell culture study reported enhanced osteogenic activity on the drug-loaded nanotube surface implants. The invivo animal studies were evaluated by micro-CT, histopathology, and reverse torque removal analysis methods. The test results showed faster osseointegration with the strong interface on the Simvastatin drug-loaded implant surface at 4 weeks of healing as compared to the control implants.

Dietary Determinants of Renal Calculi: A Case-Control Study From a Tertiary Care Hospital of Western Rajasthan.

Introduction Nephrolithiasis affects all countries of the world with an approximate global lifetime prevalence of 15-20%. In India, 12% of the total population is anticipated to have renal stone disease. This study was aimed at providing a relationship between various dietary factors in the formation of renal stones. Methods A case-control study was conducted among 207 patients (106 cases and 101 controls) attending the outpatient and inpatient departments of a tertiary care hospital in Jodhpur, Rajasthan. All the participants with confirmed renal stones by means of ultrasound and radiographic evaluation, aged 15-65 years were included as cases and were matched on age and gender with controls. Pearson chi-square test followed by binary logistic regression was used to assess significant associations. Results Out of all participants, 71.0% were males and 65.7% were from the age group 41-65 years. The study showed a statistically significant association between renal stones and high salt intake, reduced water intake, less consumption of milk and milk products, daily intake of tea, consumption of oxalate-rich foods and consumption of junk foods. Conclusion Dietary factors play an important role in the risk of the development of renal stones. Simple dietary modifications may significantly reduce the chances of the development of nephrolithiasis, especially in the vulnerable population.

Klotho: A Possible Role in the Pathophysiology of Nephrotic Syndrome.

Klotho, encoded by the klotho gene, is associated with phosphate homeostasis. Klotho acts as a co-receptor for FGF23 for binding to its receptors. With FGF23, klotho regulates the systemic mineral homeostasis by regulation of vitamin D and parathyroid hormone. The anti-inflammatory, antifibrotic and antioxidant properties of klotho give it a cardinal role in the development of various renal diseases. The protective effect of klotho has been evident in different types of nephropathy, including diabetic nephropathy, cyclosporine A-induced nephropathy, Calcineurin inhibitors-induced nephropathy, and renal ischemic-reperfusion injury. Nephrotic syndrome is distinguished by hypoproteinemia, proteinuria, and hypercholesterolemia as a result of the aberration of the glomerular filtration barrier. The various factors and pathways associated with the pathophysiology of the nephrotic syndrome have similarities with other types of nephropathy. Despite these similarities, the role of klotho in the pathology of nephrotic syndrome remains still unexplored. This minireview builds the case for the possible role of klotho in nephrotic syndrome. The review explores the possible pathways where klotho can play a major role by identifying the similarities in the pathophysiology of nephrotic syndrome and other types of nephropathy.

Household use of iodized salt in rural area.

BACKGROUND: Iodine deficiency is the world's single greatest cause of preventable mental retardation. In developing countries, only 69% of households are consuming iodized salt. OBJECTIVE: To assess knowledge and practices with respect to the current use of iodized salt, and to estimate its uptake at the household level. MATERIALS AND METHODS: This cross-sectional survey was conducted in six villages under Rural Health Training Center. A total number of households surveyed were 253. The data collectors obtained verbal consent from the Family, and Pretested Standardized Questionnaire was administered in every selected household. The respondents were asked questions regarding salt purchasing and consumption habits, salt storage, awareness of iodized salt, and iodine deficiency diseases. Rapid iodized salt test kit (MBI kit) was used in the survey to assess iodine content in salt used in households. RESULTS: In this study, 93.7% households were using packet salt. The most common source of information was a television (31.1%). More than half (53.8%) of the households were unaware of the benefits of iodine. About 62.5% of households were consuming adequately iodized salt. Significant association was found between the practice of storing salt in closed containers and use of packaged iodized salt (Chi-square value -37.6, P < 0.001), awareness about the benefits of iodine and type of salt used (P = 0.02) while no association was observed between the socioeconomic status and type of salt used in the household. CONCLUSIONS: Though the use of packet salt was more than 90%, adequately iodized salt was consumed only in 62.5%, and more than half of the subjects lacked the knowledge about iodine deficiency diseases.