Mercury Kushta Induced Histopathological Changes in Liver of Wister Rats

Background: Heavy metals are the natural constituents of the earth's crust but the indiscriminate human activities have drastically effected their biochemical balance and geochemical cycles. Heavy metals and their compounds have pharmacological importance. These are being used in south Asian countries as component of different medicines. These medicines may have serious side effects on liver. Objectives: To see the histological changes of Kushta which contains mercury, on liver of wister rats. Material and Methods: It was an animal experimental study in which a total of 42 Wistar rats were included and divided into five exposed and one control groups. Morphological changes were observed in liver of rats by using indigenous as well as patent mercury preparations. Results: Morphological changes in liver of exposed rats included hepatocyte swelling, hepatocyte necrosis, hepatocyte apoptosis, disarray of hepatic architecture, development of portal tract inflammation, central vein congestion, sinusoidal congestion and dilatation, development of fatty change and damage to hepatic vascular and liver capsule were seen at the end of 8 weeks. Conclusions: Indigenous herbo-mineral preparation (Kushta) of mercury produces deleterious morphological effects on liver of wister rats. Keywords: Mercury Kushta, Liver, Histopathology

Traction-assisted endoscopic full-thickness resection followed by O-ring and over-the-scope clip closure in the stomach: an animal experimental study

Background and study aims Exposed endoscopic full-thickness resection (EFTR) enables the operator to obtain a sufficient surgical margin. However, insufflation leakage and secure endoscopic full-thickness closure (EFTC) remain problematic. This study aimed to evaluate the safety and feasibility of a new exposed EFTR. Patients and methods Exposed EFTR was performed for 2-cm virtual lesions in different locations of the upper stomach in four dogs. EFTR mainly involved half-circumferential EFTR of the endpoint and clip-line traction. Pulley traction was applied with the forward approach for the greater curvature. EFTC involved endoscopic ligation with O-ring closure to diminish insufflation leakage, followed by over-the-scope clip closure. Results Complete resection and technical success were achieved in all four cases. One case of intraoperative bleeding was endoscopically managed. No postoperative complications occurred in any cases. The median maximum resected size was 27.5 mm. The median procedure time of the total operation, EFTR, and EFTC was 76, 37, and 35.5 minutes, respectively. The 1-month survival rate was 100 %. Conclusions This therapeutic strategy may lead to the establishment of exposed EFTR.

Effect of Exercise Duration on Klotho and GluN2B Gene Expressions in Hippocampus of Wistar Rats with Moderate Intensity Exercise

Exercise could delay the degeneration process by increasing Klotho, which is an endogen antioxidant. Klotho protects against oxidative damages, regulates hippocampal synaptic plasticity, and enhances GluN2B expression. This study aimed to analyze the effect of 14-day and 8-week moderate-intensity exercise on Klotho and GluN2B mRNA expressions in rat hippocampus. This study was an animal experimental study using Wistar rats that was performed from June to September 2019 at the Central Laboratory, Universitas Padjadjaran, Indonesia. Rats were divided into 4 groups: control (14-day control and 8-week control) and exercise group (14-day exercise and 8-week exercise). The exercise groups ran at a moderate intensity (20m/min) for 30min/day, 5x/week. Hippocampus was then subjected to klotho and GluN2B gene expression analysis. The exercise groups showed a higher Klotho expression, both in 14 days (0.844±0.124 vs. 1.057±0.013) and 8 weeks (0.897±0.072 vs. 1.380±0.168) although statistically insignificant (p=0.24). No difference in GluN2B gene expression was observed between control and exercise groups on 14 days (1±0.09 vs. 1.22±0.09) and 8 weeks (1.24±0.03 vs. 1.38±0.05; p=0.11). In conclusion, 14-day and 8-week moderate-intensity exercise did not alter Klotho and GluN2B expressions in rat hippocampus.

AN EXPERIMENTAL EVALUATION OF RASA PANCHAKA (ATTRIBUTES) OF FOLK MEDICINAL PLANT Andrographis Macrobotrys Nees

Background and Objective: Folk medicinal plants are densely found in India which needs to be thorough-ly studied and documented. Andrographis Macrobotrys (Nees) is an erect, stout herb of Acanthaceae fami-ly is used in the treatment of snake bite, diarrhea, muscle pain, fever, jaundice, liver disorders and skin dis-ease by the tribes of Kerala. According to the principles of Ayurveda, basis for use of drug is by analysing its Rasapanchaka (attributes) namely rasa (taste), guna (qualities), vipaka (taste after digestion), virya (po-tency), and prabhava (special action). Hence assessment of Rasapanchaka is necessary for thorough knowledge of the drug. Aim of the present study is to evaluate the Rasa, Guna, Virya, Vipaka and prabha-va of Andrographis Macrobotrys Nees. Methods: Rasa of whole plant was assessed by direct perception by administering test drug to 25 volun-teers. Virya was assessed by exothermic and endothermic reaction of the drug with water in different con-centrations. Vipaka, guna and prabhava were determined through animal experimental study by adminis-tering drug to 12 Wistar Albino rats. Result and Conclusion: The assessment of study on rasapanchaka reveals that test drug possess Tiktha (bitter) rasa, Kashaya (astringent) anurasa, laghu (light), ruksha (dry), ushna (hot) guna, katu (pungent) vipaka, sheetha (cold) virya, pachana (digestive), lekhana (scraping) karma (action).

THE DESIGN OF THE ARTERIOVENOUS VASCULAR LOOP DOES NOT AFFECT ITS PATENCY: EXPERIMENTAL STUDY

ABSTRACT Objective: To evaluate the effect of the design of a femoral vascular loop with anastomosis in the femoral artery of rabbits on the presence of flow (patency) after seven days. Methods: A total of 39 rabbits underwent arteriovenous microanastomosis using the microsurgical technique. Two loop designs were used: one circular and the other angled. The parameters evaluated were presence or absence of flow, signs of hemolysis and hemodynamic changes. Results: After seven days, flow was present in 68% of the angled loops and 75% of the circular loops (p > 0.05). There was a significant intragroup decrease in pCO2 and a significant increase in pH. For the other parameters evaluated, no significant differences between the two loop models were found. Conclusions: A reproducible vascular loop model was shown. There was no significant difference between the two vascular loop models about the presence of flow after seven days. Level of Evidence V, Animal experimental study.