Diversity of Plant Species in The Steel City of Odisha, India: Ethnobotany and Implications for Conservation of Urban Bio-Resources

ABSTRACT The vegetation of the Steel City (Rourkela) of Odisha, India has high ethnobotanical values by virtue of its rich floral diversity. People in the urban area are highly dependent on the plants available in and around the city for their primary needs. The present study highlights the use of local flora, explore, identification, ethnobotany and conservation of wild and cultivated plant species in the city of Rourkela, Odisha, India. It also pays heed to the proper utilization of urban flora as a way of highlighting its ethnopharmacological importance. A field survey was conducted to collect information about floral diversity in and around the city. Data on the use of plants was collected with a semi-structured questionnaire and from the peer-reviewed literature. A total of 154 plant species, belonging to 128 genera and 55 families, were identified, along with their botanical name, vernacular name, family and habitat. Of these plant species, 53 are medicinal, 43 are ornamental, and 33 are edible, while 23 are weeds. Paderia foetida and Saraca asoka fall into the RET (rare, endangered and threatened) group and are very effective against various diseases. Traditional uses of local plants in an urban area like Rourkela are very interesting. This shows that, not only rural and tribal areas are rich in useful bio-resources but so are urban or semi-urban areas. The documentation of all useful flora with ethnomedicinal potential is helpful in conserving plant biodiversity as well as in environmental studies along with potential applications in drug discovery and oriental medicine.

Evaluation of Medicinal Values of Gymnopetalum chinense (Lour.) Merr., a Lesser Known Cucurbit from Eastern Ghats of India

ABSTRACT >The in vitro antimicrobial activity of Gymnopetulum chinense (Cucurbitaceae), a lesser known climber of Eastern Ghats and recently recorded species from Odisha, India was studied against five selected human pathogenic bacteria (Streptococcus mutans, S. pyogenes, Vibrio cholerae, Shigella flexneri and Salmonella typhi), by agar well diffusion (AWD), disc diffusion (DD) and broth dilution methods. Different solvent extracts were prepared from the leaves of G. chinense using various solvents viz. n-hexane, chloroform, methanol, acetone and aqueous. The nomenclature, detailed description and photographs of the plant are provided to facilitate its easy identification. The leaf extract showed presence of phenolic compounds, tannin, saponin, flavonoids and glycosides. It was examined that methanol extract showed highest zone of inhibition (16.66 mm) against S. pyogenes using DD assay. Similar results were examined as lowest MIC values were found with methanol leaf extract against S. pyogenes and S. mutans (200 µg/ml). Present study showed first report of this plant as natural antibacterial agents and highlights the importance of G. chinense in curing the bacterial infections.

Antioxidant activity, antibacterial potential and characterization of active fraction of Dioscorea pentaphylla L. tuber extract collected from Similipal Biosphere Reserve, Odisha, India

ABSTRACT Dioscorea pentaphylla L., a wild tuber is used both as food and medicines among different ethnic groups of Similipal Biosphere Reserve, India. Tubers are used against skin infections. In order to establish and confirm tribal claims, methanol extract was subjected to fractionation. The active fraction (DP1) was subsequently used for further purification and NMR (Nuclear magnetic resonance) characterization. The phytochemical analysis revealed the presence of saponin groups. The antibacterial activity of DP1 was done against selected bacterial strains (Salmonella typhi, Shigella flexneri, Streptococcus pyogenes, Streptococcus mutans and Vibrio cholerae) using DD (disc diffusion), AWD (agar well diffusion) and broth dilution assay. The activity was compared with antibiotics Penicillin and Kanamycin. It was observed that DP1 showed significant inhibitory activity against the tested bacteria. The characterization of DP1 through NMR analysis and presence of proton in carbon position at C-3, C-19, C-18, C-21 and C-27 was same as the known compound "Diosgenin". Therefore, isolated compound was confirmed to be Diosgenin. The study for the first time showed that, diosgenin present in D. pentaphylla tuber was responsible for antibacterial and antioxidant potential. Present study highlights the importance of Dioscorea species as sources of diverse secondary metabolites for the isolation of active compound(s).

Study of coronary artery atherosclerosis in sudden deaths and its medico-legal relevance.

The coronary artery diseases can play a crucial medico- legal role to decide the cause of sudden death whether natural or unnatural. There are certain occasions, when a person dies on the operating table or soon after surgery, and a coronary attack is probably the cause of death. A final coronary episode may sometimes be associated with an operative procedure supposedly due to hypotensive state. During driving or piloting a person may goes into a state of confusion because heart attack. In this state he may lose control and an accident can happen. These conditions indicate that intervention of Forensic Pathologist is significant to decide the actual cause of death apart from injury or disease of vital organs. We examine coronary arteries for atherosclerotic changes in 50 cases of sudden deaths. We observed that there were marked intimal thickening with luminal narrowing ≤ 75% of luminal diameter in 20 cases (40%) in total hearts. In natural deaths 17 cases (48.57%) showed luminal narrowing ≤ 75% of luminal diameter. These findings are suggestive of medico legal intervention to clarify the mode of death in some instances.

Abdominal organ involvement in blunt injuries.

Visceral injuries of the abdomen following blunt trauma present a great medico-legal problem to the forensic experts. Thus the doctor should remain alert to the development of signs and symptom after blunt trauma to the abdomen in vehicular accident otherwise he may be charged of negligence. Among 55 fatal cases of blunt abdominal injury, maximum number of cases belongs to the age group 20-29 yrs. Males were the predominant victims with ratio 4:1. It was found that road traffic accidents by heavy vehicle like bus; car and truck were responsible for 70% of blunt abdominal injuries. Among 55 cases of blunt injury, the incidence of the involvement of liver, spleen, small intestine, kidney, stomach and urinary bladder were 67%, 30.91%, 18%, 10.9%, 9.09%, 5% cases respectively. Genitals were found injured in 3% cases of blunt injury abdomen. For Blunt Injuries of Abdomen majority of the cases i.e. 78.18% were of accidental, 18.18% were homicidal and 3.6% suicidal in nature. Immediate cause of death was shock and hemorrhage and in those cases where death was delayed, cause of death was septicemia.