Dissipation pattern of tetraniliprole in/on green chilies.

Field and lab experiments explored tetraniliprole dissipation in chili plants. A supervised trial in Devarayapuram village, Coimbatore, assessed the CO2 chili variety (December-March 2018-2019). Using the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method and ultra-high-performance liquid chromatography (UHPLC), samples were collected up to 15 d post-application. Initial tetraniliprole deposits on chili fruits, 1-h post-spray, were 0.898 and 1.271 µg g-1 at single and double doses. Over 80% dissipated within 5 d, reaching below detection limits by day 7 and 10 for single and double doses, respectively. Transformation analysis favored first-order kinetics. Tetraniliprole half-life on chili fruit was 1.49 and 1.53 d at recommended and double doses. The safe waiting period was 4.16 and 5.04 d for 60 and 120 g a.i ha-1. This study provides insights into tetraniliprole dynamics in chili plants, crucial for effective pesticide management.

Effect of Light-Emitting Diode Phototherapy on Serum Calcium Levels in Neonates With Jaundice.

BACKGROUND: To assess the change in serum total calcium levels during light-emitting diode phototherapy treatment for jaundice in term neonates. METHODS: A prospective observational study was done on 104 term neonates with hyperbilirubinemia in a tertiary care center to investigate the effects of phototherapy using a light-emitting diode device. The total serum bilirubin along with total calcium levels was measured at the start and at the end of phototherapy. Additionally, all the newborns enrolled in the study were evaluated for hypocalcaemia-related symptoms such as jitteriness, irritability/excitability, lethargy, and convulsions. RESULTS: A significant lowering of posttreatment total calcium level compared to that of pretreatment level (p<0.001) was found in our study. Hypocalcemia (serum calcium <8 mg/dL in term neonates) was found in 12.5% of the study subjects. CONCLUSIONS: In the treatment of neonatal jaundice, similar to conventional blue and white light phototherapy, light-emitting diode phototherapy also has hypocalcemia as an adverse effect. We recommend monitoring these babies for hypocalcemia during light-emitting diode phototherapy.

Protective Effects of Sauropus Androgynus Leaf Extract against Isoproterenol Induced Cardiotoxicity.

The current research work focuses on the identification of cardioprotective effect of the ethanolic extract of Sauropus androgynus (EESA) leaves. Sauropus androgynus leaves are being utilized in folk and ayurvedic medicines in India to treat cardiovascular diseases like myocardial infraction, atherosclerosis, and venous thrombosis. However, the cardioprotective effects associated with the leaf extract of this plant has not yet been established. METHODS: The identification of cardioprotective effects of the ethanolic extract of Sauropus androgynus (EESA) leaves was performed using in vitro and in vivo models. The cell culture studies were performed using cardio myoblast cells (H9C2) and in vivo cardioprotective effects of EESA was assessed in albino wistar rats employing isoproterenol (ISO) as cardiotoxic agent. The animals were divided into six treatment groups and myocardial infraction was induced at 14th day followed by the treatment with therapeutic doses of EESA (100, 200 and 400 mg/kg) for next two days. Various biochemical and histopathological parameters were evaluated in animals kept under control and treatment groups. RESULTS: The in vitro cell line studies revealed a positive impact on H9C2 cells. The ethanolic extract of Sauropus androgynus depicted low toxicity on cardiomyoblast cells and significant proliferation was observed after treatment. The results from animal studies have shown 1.7 times reduction in serum LDH (151.9 ± 1.302) and CPK (237.6 ± 5.781) levels with EESA treated groups compared to toxic control. EESA also significantly increased the antioxidant enzyme levels, which are responsible for cardioprotective effects in animals. CONCLUSION: This research study reveals that EESA possess antioxidant activity and also provides a protective role against myocardial infarction induced by ISO. We conclude that EESA could be a potential candidate to prevent and treat cardiotoxic consequences of high catecholamine levels.

Prevalence of Early Primary Teeth Loss in 5-9-year-old Schoolchildren in and around Melmaruvathur: A Cross-sectional Study.

AIM: The goal of this study was to determine the frequency of early primary tooth loss among school children in and around Melmaruvathur, Tamil Nadu, India. MATERIALS AND METHODS: A cross-sectional study involving all the children aged between 5 and 9 years in and around Melmaruvathur, Tamil Nadu, India, from January 2022 to July 2022 was conducted. A total of 20 government schools were approached for participation in the study, study population consisted of 800 government school children (358 boys and 442 girls). All clinical assessments were done in the natural light by an experienced examiner. Age and missing teeth were among the data gathered. RESULTS: The findings revealed that 20.8% of the sample had lost their primary teeth before the age of 6 (p > 0.05), although no gender differences were seen, males (12.6%) were more commonly affected than females (8.2%). The mandibular arch (61.8%) was more commonly affected than the maxillary arch (38.2%). In accordance with the frequency of early loss of teeth relative to tooth type, the molars (98.2%) were the most commonly prematurely lost teeth followed by the incisors (1.5%) and the cuspids (0.3%). The left lower primary first molars (42.3%) were the most often missing teeth, and the frequency was highest in 8-year-old children (38.9%). CONCLUSION: It was shown that lower primary molars were the most often missing teeth in the current investigation, and that early loss was highly prevalent. CLINICAL SIGNIFICANCE: Early loss of primary teeth leads to lots of malocclusion problems mainly arch length discrepancies are seen. Early detection and management of the space problems associated with the early loss of primary teeth would help in reducing malocclusion problems.

In Vitro Evaluation of the Efficacy of Three Different Remineralizing Agents on Artificial Enamel Lesions in Primary Teeth: A Comparative Study.

AIM: The aim of the present study was to assess the effectiveness of three various remineralizing agents on artificial enamel lesions in deciduous teeth. MATERIALS AND METHODS: Eighty primary teeth that were implicated for extraction were taken from patients of 4 to 14 years of age. Every specimen was subjected to air drying followed by the creation of 3 × 3 mm window positioned on the central surface of the coronal portion of the tooth to restrict the area of investigation. A digital pH meter was utilized to formulate a demineralizing solution by checking the pH before and following formulation of the solution. A total of 80 specimens (20 in every group) were allocated to three of the following experimental groups and one control group: group I: control, group II: tricalcium phosphate, group III: casein phosphopeptide-amorphous calcium phosphatefluoride (CPP-ACPF), and group IV: calcium sucrose phosphate (CaSP). Specimens in every group were subjected to treatment with the assigned remineralizing substance once in 24 hours for 14 days. Confocal laser scanning microscopic (CLSM) evaluation of the samples was performed to assess the baseline and posttreatment remineralization as well as demineralization. RESULTS: CPP-ACPF group (110.73 ± 0.11) displayed the greatest mean remineralization depth, in pursuit by the calcium orthophosphate complex (CaSP) group (122.19 ± 0.28), tricalcium phosphate group (126.87 ± 0.15) as well as the control group (158.46 ± 0.07). These differences amid the investigational groups for remineralization were significant. The greatest depth µ area of remineralization was seen in the CPP-ACPF group (50.29 ± 0.06) in pursuit by the CaSP group (36.70 ± 0.17) as well as the tricalcium phosphate group (33.29 ± 0.06). This difference amid the remineralizing agents was statistically significant. CONCLUSION: Amid the confines of the limitations of the current research, it may be concluded that the three remineralizing agents studied, exhibited a remineralization capability on the artificially induced lesions in enamel. CPP-ACPF exhibited the greatest remineralization capability in comparison with the CaSP and tricalcium phosphate groups. CLINICAL SIGNIFICANCE: Dental caries is an unalterable course that leads to everlasting loss of dental hard tissues with eventual formation of a cavity. Off late, numerous techniques have centered on applying remineralizing substances to early lesions due to dental caries, aiming at arresting demineralization while encouraging remineralization. Such remineralizing substances form an atmosphere that is superconcentrated with calcium and phosphate, thereby forcing these ions to diffuse into the unoccupied areas, thereby avoiding further loss of minerals.

Prognostic Implications of DNA Repair, Ploidy and Telomerase in the Malignant Transformation Risk Assessment of Leukoplakia.

BACKGROUND: Although leukoplakia shows a higher risk for malignant transformation to oral cancer, currently there are no clinically relevant biomarker which can predict the potentially high risk leukoplakia. This study aimed to investigate the genetic alterations such as DNA ploidy, telomerase expression and DNA repair capacity as predictive markers of malignant transformation risk of leukoplakia. METHODS: The study was initiated in September 2005 and patients were followed up to March 2014. Two hundred patients with oral leukoplakia, 100 patients with oral cancer and 100 healthy, age and sex matched adults with normal oral mucosa as controls were recruited. The DNA ploidy content was measured by high resolution flow cytometry, level of telomerase expression was identified by TRAP assay and intrinsic DNA repair capacity was measured by mutagen induced chromosome sensitivity assay of cultured peripheral blood lymphocytes. The Chi-square test or Fisher's Exact test was used for comparison of categorical variables between biomarkers. A p value less than or equal to 0.05 was considered as statistically significant. Analysis was performed with SPSS software version 16. Logistic regression was used to find the association between the dependent and three independent variables. RESULTS: There was significant difference in the distribution of ploidy status, telomerase activity and DNA repair capacity among control, leukoplakia and oral cancer group (p<0.001). When the molecular markers were compared with histological grading of leukoplakia, both DNA ploidy analysis and telomerase activity showed statistical significance (p<0.001). Both aneuploidy and telomerase positivity was found to coincide with high-risk sites of leukoplakia and were statistically significant (p.

Sustained release of chrysin from chitosan-based scaffolds promotes mesenchymal stem cell proliferation and osteoblast differentiation.

Numerous phytochemical compounds have recently been reported to stimulate osteogenesis. In this study, the bioavailability and osteogenic effects of chrysin, a natural flavonoid, were investigated. Chrysin was incorporated at different concentrations into biocomposite scaffolds containing carboxymethyl cellulose, chitosan, and nano-hydroxyapatite, through the freeze-drying method. The physicochemical and material characteristics of chrysin-incorporated scaffolds were investigated, and chrysin had no effect on them. These chrysin-containing scaffolds were not cytotoxic to mouse mesenchymal stem cells (mMSCs). Chrysin released from scaffolds stimulated cell proliferation and promoted osteoblast differentiation. Osteoblast differentiation enhanced by chrysin from scaffolds could be due to downregulation of co-repressors of the osteoblast differentiation transcription factor Runx2 in these cells. Thus, chrysin release from scaffolds has potential effects on proliferation and differentiation of mMSCs; hence, it has potential application in bone tissue engineering.

Screening of natural polysaccharides extracted from the fruits of Pithecellobium dulce as a pharmaceutical adjuvant.

Polysaccharides were extracted from the dried fruiting bodies of Pithecellobium dulce with 20% ethanol by microwave-assisted extraction. The polysaccharides were isolated by ion exchange chromatography and afford three water-soluble polysaccharides PDP-1, PDP-2, and PDP-3. These isolated compounds were subjected to acid hydrolysis, methylation, IR and GC-MS for its compositional analysis and revealed that all the three fractions are heteropolysaccharides. PDP-1 was found to be composed of xylose, mannose, galactose and Rhamnose. PDP-2 and PDP-3 composed of xylose, Rhamnose, glucose, ribose, galactose, and mannose. The micromeretic properties of the extracted polysaccharides possessed a bulk density of 0.69g/ml, 0.65g/ml and 0.71g/ml for PDP-1, PDP-2, and PDP-3 respectively. The Hausner's ratio and Carr's index confirm the good flow property and compressibility of the polysaccharides. The polysaccharides extracted from Pithecellobium dulce fruits were tested for its application as a pharmaceutical adjuvant. The in vitro drug release study suggests that the extracted polysaccharides are potential candidates as a pharmaceutical adjuvant. Furthermore, the three isolated polysaccharides were subjected to its radical scavenging activity using DPPH, phospho molybdenum assay and reducing power assay. The results exhibited that the polysaccharides can be explored as a novel natural antioxidant and can be recommended as a functional food.