Salivary Gland Neoplasms in Indian Paediatric Population Visiting a Dental Institution

INTRODUCTION: With a probability of 50% malignancy, salivary gland tumors are not too commonly noticed in children and adolescents. Most of these have idiopathic etiology but a few pre-disposing factors have been reported in literature. We hereby report eighteen cases of paediatric salivary gland tumors in a study conducted from September 2013 to August 2018 at department of Oral and maxillofacial surgery at Tatyasaheb Kore Dental college and Research Centre, Kohlapur, Maharashtra, India..AIM & OBJECTIVES: This study aimed to inspect the distribution, clinical and histopathological features of salivary gland tumours in children and adolescents.MATERIAL AND METHODS: A total of 18 cases of salivary gland tumors encountered in paediatric age group were studied and explored for age, gender, site proneness and for histopathological nature.RESULTS: Female gender had a predominance over males. Parotid tumors were more common (77.78%) as compared to tumors of submandibular glands. Six cases were diagnosed with benign tumors (pleomorphic adenoma) and rest had malignant tumors (mucoepidermoid in nature). Majority of the cases did not report undergoing any prior treatment.CONCLUSION Present study revealed that salivary gland tumors in paediatric age group are quite rare with female gender being more prone. With majority of cases being mucoepidermoid in nature, parotid gland is most commonly affected

Salivary Gland Neoplasms in Indian Paediatric Population Visiting a Dental Institution

INTRODUCTION: With a probability of 50% malignancy, salivary gland tumors are not too commonly noticed in children and adolescents. Most of these have idiopathic etiology but a few pre-disposing factors have been reported in literature. We hereby report eighteen cases of paediatric salivary gland tumors in a study conducted from September 2013 to August 2018 at department of Oral and maxillofacial surgery at Tatyasaheb Kore Dental college and Research Centre, Kohlapur, Maharashtra, India..AIM & OBJECTIVES: This study aimed to inspect the distribution, clinical and histopathological features of salivary gland tumours in children and adolescents.MATERIAL AND METHODS: A total of 18 cases of salivary gland tumors encountered in paediatric age group were studied and explored for age, gender, site proneness and for histopathological nature.RESULTS: Female gender had a predominance over males. Parotid tumors were more common (77.78%) as compared to tumors of submandibular glands. Six cases were diagnosed with benign tumors (pleomorphic adenoma) and rest had malignant tumors (mucoepidermoid in nature). Majority of the cases did not report undergoing any prior treatment.CONCLUSION Present study revealed that salivary gland tumors in paediatric age group are quite rare with female gender being more prone. With majority of cases being mucoepidermoid in nature, parotid gland is most commonly affected

Exogenous priming of chitosan induces upregulation of phytohormones and resistance against cucumber powdery mildew disease is correlated with localized biosynthesis of defense enzymes

In recent years, exploration of biopolymer-based materials to avoid hazardous chemicals in agriculture has gained enormous importance for sustainable crop improvement. In the present study, chitosan a biopolymer derived from crab-shell was used in different concentrations as priming agent to cucumber seeds and were evaluated for its effect to enhance plant growth parameters as well as its ability to induce resistance against powdery mildew disease. Among the treatments, seeds-primed with 2.5 mg/mL exhibited early seedling germination of 90% and vigour of 2665 and also remarkably enhanced the cucumber growth parameters which might be fairly attributed to the stimulation of phytohormones content in primed plants over the controls. More importantly, under greenhouse conditions a significant induced disease protection of 66.6% against powdery mildew disease was noticed in chitosan-pretreated plants at 2.5 mg/mL. The induced resistant plants also showed a significant deposition of lignin, callose and H2O2. Notably, polyphenol oxidase, phenylalanine ammonia-lyase, peroxidase and glucanase defense-responsive enzymes were upregulated in chitosan-primed plants. Considered together, these results determine that the susceptible cucumber cultivar elicits immunity after perception of priming with chitosan to upregulate phytohormones and synthesize defense-responsive enzymes, thereby induce resistance against powdery mildew disease and strengthen the growth-promotion of cucumber plants. (C) 2020 Elsevier B.V. All rights reserved

Detection and determination of stability of the antibiotic residues in cow's milk.

In the present study, antibiotic residues were detected in milk samples collected from the dairy herds located in Karnataka, India, by microbiological assay. Subsequently, the detected antibiotics were identified as azithromycin and tetracycline, by high-performance liquid chromatography, further both the antibiotics detected in the cow milk samples were found to be at high concentration (9708.7 and 5460 μg kg-1, respectively). We then investigated the effects of temperature and pH on the stabilities of azithromycin and tetracycline to determine the degradation rate constant k using first-order kinetic equation. Results indicated that significant reduction in stability and antibacterial activity of azithromycin solution when subjected to 70 and 100°C for 24 h. While stability of tetracycline was significantly reduced when subjected to 70 and 100°C for 24 h. However no significant reduction in antibacterial activity of tetracycline was observed at respective temperatures when compared with that of control. In addition, the stabilities of azithromycin and tetracycline were found to be decreased in acidic pH 4-5. The results of the present study revealed the high risk of contamination of milk sample with veterinary antibiotics and also demonstrated the effect of temperature and pH on stability of antibiotics. Therefore the study suggest that the qualitative and quantitative screening of milk for the presence of antibiotics need to be strictly performed to ensure safe drinking milk for consumers