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Background: Urolithiasis is a medical condition characterized by formation of stone which comprises of calcium oxalate, magnesium ammonium phosphate and uric acid. Reoccurrence becomes the primary hindering factor in providing relief for urolithiasis; hence there is a need of alternate therapeutic strategy that may effectively combat and halt the formation and nucleation of the crystals. Objective: The main aim of the present investigation is to explore the anti-urolithiasis potential of the two versatile siddha formulations Amukkara Chooranam (AKC) and Karisalai karpam chooranam (KKC) using diffusion gel growth technique. Materials and Methods: Silica hydrogel matrix was divided in to three groups which were control, AKC and KKC treated groups. Test drugs were screened at two dose levels of 0.5% and 1%. The efficiency of the formulations was screened by comparing the crystal size of the control and treatment medium. Results: The average size of the crystals in the control medium was found to be 2.12 ± 0.22 cm, whereas the crystal size was significantly decreased in medium contains 0.5% and 1% of AKC with the size of 1.4 ± 0.15 and 1.14 ± 0.18 cm. Similar type of findings were observed in medium consist of 0.5% and 1 % KKC with the size of 1.52 ± 0.13 and 1.08 ± 0.17 cm. Conclusion: Results clearly indicates that both the siddha formulations offers maximum percentage inhibition on the crystal growth in the tested medium, this efficacy may be due to presence of versatile phytocomponents present in the formulations.

COVID-19 Caused by the novel corona virus (SARS-CoV-2), which has already pushed the entire global community to change their priorities towards finding a suitable anti-viral medicine and a vaccine. While most of the countries have started to prescribe vaccines, which show varied levels of efficacy, finding an effective anti-viral medicine against the virus is still in the early stages despite full-fledged research activities at global level. Many countries particularly those having a rich traditional health science background like India and China started to recommend medicines belonging to local health traditions. The public utilization of those medicines also yielded good results in terms of prevention of the viral infection, reducing the severity of disease or/and reducing the number of days required to recover from the disease as perceived and reported by the patients and doctors. In Tamil Nadu, there are more than 80 million populations. Siddha medicine is the most widely used system of traditional medicine. ‘Suram’ is the Tamil word equivalent to the term ‘fever’. Kabasuram (Also known as Aiya suram) is one among the 64 types of fevers mentioned in Siddha symptoms of which are identical to those of COVID-19. “Notchi kudineer”– a Siddha herbal formulation is being used since many centuries for fever and respiratory disorders with remarkable success. This review article attempts to explore the pharmacological evidence in support of the therapeutic usage of “Notchi kudineer” hence justifying its usage in respiratory related illnesses having fever as a main symptom like the current pandemic of COVID-19.

Fingerlings of estuarine fishes, Tilapia mossambica and Lates calcarifer were exposed to sub-lethal concentration of mercury and chromium (2.8 ppm) for a period of 28 days. When these fish were exposed to metals concentration, severe gills alterations were observed. But the alteration was less in fish T. mossambica when compared to that of L. calcarife. The fish L. calcarifer exposed to mercury plus chromium, showed lifting up of the epithelium, swelling, hyperplasia, hypertrophy, proliferation of chloride cells, but in mercury treatment, lamellar fusions, fused secondary lamella and necrosis were observed, whereas in T. mossambica the gills disintegration of epithelial cells, desquamated epithelium, hemorrhaged and exhibited complete damage of epithelial cells of lamellae. The Na+, K+-ATPase activity of both gills and plasma showed significant reduction throughout the experiment period in both fishes. The enzyme activity was more drastic in the case of plasma. The results are discussed in relation to the significance of the above enzyme as non-specific biomarkers against environmental stress.

Strychnos potatorum Linn. seeds was soaked in cow's milk for 24 minutes, washed and shade dried for use. Terminalia chebula fruits were broken and seeds were removed. 4

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