Analgesic and anti-inflammatory activity of hydroalcoholic extract of Piper betle leaves in experimental animals

Background: Piper betle leaf, commonly known as ‘paan’ has long been known for its various medicinal properties in traditional medicine but certain properties have remained less explored. We tried to assess the analgesic and anti-inflammatory activities of Piper betle leaves.Methods: Hydroalcoholic extract of Piper betle leaves (HEPBL) was extracted using soxhlet apparatus and its phytochemical analysis was performed. Wistar rats and Albino mice were used for all the experiments. Acute toxicity study was also done according to OECD guideline no.425 and the test doses were decided accordingly. The experimental models of tail-flick method and acetic acid induced writhing were used to study the analgesic activity whereas carrageenan induced paw edema and cotton pellet granuloma models were used for anti-inflammatory action. Statistical analysis was performed using one-way analysis of variance (ANOVA) followed by Dunnett's test.Results: HEPBL showed significant analgesic activity at the doses of 100 mg/kg and 200 mg/kg, and showed significant anti-inflammatory activity at the doses of 50 mg/kg, 100 mg/kg and 200 mg/kg. The sub-therapeutic dose of HEPBL at 50 mg/kg also potentiated the analgesic effect of sub-therapeutic doses of standard analgesics. The analgesic and anti-inflammatory activity of P.betle may be attributed to the presence of various phyto constituents’ viz. flavonoids, tannins, phenols and glycosides.Conclusions: HEPBL has significant analgesic and anti-inflammatory activity in experimental animals in our study

Effect of Organo Montmorillonite Nanoclay on Mechanical Properties Thermal Stability and Ablative Rate of Carbon fiber Polybenzoxazine Resin Composites

Organo-Montmorillonite (o-MMT) nanoclay added polybenzoxazine resin (type I composites) were prepared with varying amounts of clay (0, 1, 2, 4 and 6 wt %). Clay dispersion, changes in curing behaviour and thermal stability were assessed in type I composites. Findings from these studies of type I composites were used to understand thermal stability, mechanical, and mass ablation rate behaviour of nanoclay added carbon fiber reinforced polybenzoxazine composites (type II). Interlaminar shear strength and flexural strength of type II composites increase by 25% and 27%, respectively at 2 wt% addition of clay. An oxy-acetylene torch test with a constant heat flux of 125 w/cm2 was used to investigate mass ablation rate of type II composites. The ablation rate has increased as the weight percentage of clay has increased. This is contradicting to type I composites with up to 6 wt% clay and type II composites with up to 4 wt% clay, which have improved thermal stability. The microstructure of the ablated composites was examined using scanning electron microscopy. Increased ablation rates are due to the reaction of charred matrix with nanoclay, which exposes bare fibers to the ablation front, resulting in higher mechanical erosion losses

A survey of early career psychiatrists’ of India towards homosexuality

Background: Attitude of today’s early career psychiatrists (ECPs), those who have qualified as psychiatrists in the past 7 years, will have a bearing on how homosexuality will be perceived in the coming decades. Hence a study was planned to assess these attitudes of ECPs towards homosexuality.Methods: It was an online survey based cross-sectional study. After obtaining an informed consent, the ECPs were enquired about their age, religion, gender, place of work (urban/rural), profile of work (teaching institute/clinic/hospital/community), their frequency and comfort in attending the homosexual patients and their comfort in referring their patient to a homosexual colleague. Further all the consenting ECPs were asked to fill in the heterosexual attitude towards homosexuality (HATH) scale.Results: The mean age of the study group of ECPs (n=57) was 34.07±3.12 and their male female ratio was 2.35. Most of the respondents attend 1-10 homosexual patients per year (n=49), 54 (94.73%) were comfortable handling homosexual patients and 45 (78.94%) were comfortable referring their patient to a homosexual colleague. The mean HATH score of all the ECPs was 58.51±6.67 and it did not vary across gender, place of practice (rural/urban) and profile of practice (teaching institute/clinic/hospital/community).Conclusions: The attitude of ECPs towards homosexuality is neutral and doesn’t vary across gender, place of practice or profile of practice. Most of the ECPs are comfortable handling homosexual patients and also feel comfortable referring their patients to homosexual colleagues.

Global Tobacco Control and Economic Norms: An Analysis of Normative Commitments in Kenya, Malawi And Zambia

Tobacco control norms have gained momentum over the past decade. To date 43 of 47 Sub-Saharan African countries are party to the Framework Convention on Tobacco Control (FCTC). The near universal adoption of the FCTC illustrates the increasing strength of these norms, although the level of commitment to implement the provisions varies widely. However, tobacco control is enmeshed in a web of international norms that has bearing on how governments implement and strengthen tobacco control measures. Given that economic arguments in favor of tobacco production remain a prominent barrier to tobacco control efforts, there is a continued need to examine how economic sectors frame and mobilize their policy commitments to tobacco production. This study explores the proposition that divergence of international norms fosters policy divergence within governments. This study was conducted in three African countries: Kenya, Malawi, and Zambia. These countries represent a continuum of tobacco control policy, whereby Kenya is one of the most advanced countries in Africa in this respect, whereas Malawi is one of the few countries that is not a party to the FCTC and has implemented few measures. We conducted 55 key informant interviews (Zambia = 23; Kenya = 17; Malawi = 15). Data analysis involved deductive coding of interview transcripts and notes to identify reference to international norms (i.e. commitments, agreements, institutions), coupled with an inductive analysis that sought to interpret the meaning participants ascribe to these norms. Our analysis suggests that commitments to tobacco control have yet to penetrate non-health sectors, who perceive tobacco control as largely in conflict with international economic norms. The reasons for this perceived conflict seems to include: (1) an entrenched and narrow conceptualization of economic development norms, (2) the power of economic interests to shape policy discourses, and (3) a structural divide between sectors in the form of bureaucratic silos

Periodontal Probes - A Review

A periodontal probe till today remains the most important diagnostic tool in periodontal diseases. A probe is used to make initial assessment, followed by detailed evaluation to determine the extent and degree of severity of disease and tissue destruction for specific treatment planning. During treatment the probe is applied to assess the progress. After treatment, use of the probe helps to determine the completion of professional services as recognized by the health status of the tissue. This article provides the reader with the review of periodontal probes which throws light on clinical presentation, diagnosis, prevention and management

Well-Being Programme for Caregivers of Persons with Spinal Cord Injury

Background: SCI is a high-cost chronic disability, and it is a life-changing experience for family members and societies. For families, the unpredictable nature of the injury leads some of the members into an 'unexpected career' as family caregivers, the caregiver’s have to put enormous efforts, to provide continuous full-time caregiving for the recovery of Person with Spinal cord injury, which will affect the caregiver's physical and mental health. The current study aims to develop and test the feasibility of a well-being programme for caregivers of persons with spinal cord injury.            Methods/Design: The current study adopts a Quasi-experimental study design, which have three phases; the first phase is to explore the needs of the caregivers by conducting in-depth interviews with different stakeholders. The second phase is to develop a well-being programme, and checking the feasibility of the programme is the third phase by recruiting 24 caregivers. Qualitative data will be analyzed using thematic analysis, whereas quantitative data will be analyzed using appropriate parametric or non- parametric tests upon confirming normality of data distribution. Discussion: This study would help us to understand the psycho-social issues and unique needs of the caregivers at different time periods. It also gives information about psycho-social interventions and outcome measures for the well-being of the caregivers

Dynamics of parasite population and its histopathological and histophysiological effects in the stomach of a freshwater fish

The caryophyllaeid cestode Lytocestoides fossilis infects the freshwater catfish Heteropneustes fossilis. The study was conducted for two consecutive years (2004-06) to record the bio-statistical data of the parasite. The incidence, intensity, density and index of infection of the parasite have been recorded. The infection was more during June to September, moderate during February to May and low during October to January. The parasite brought about severe histopathological changes in the stomach of infected fish. The changes observed in the stomach of fish included structural damage of the villi, inflammation, and fibrosis associated with hyperplasia and metaplasia. The hypertrophy of mucous layer led to vacuolation and necrosis. Histochemical changes were noticed with enhanced carbohydrate, protein and lipid contents. The enhanced substrate content in the infected organ might be due to the disfunctioning of the digestive tract, which results in the accumulation of various metabolites. Mucus secretion was triggered as a protective interaction against parasitic invasion. The parasitic infection affects the general metabolic state of the host and as the result, the fish becomes sluggish and moribund