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Biomedical subjects

C Singh

Publications and source records attributed to C Singh.

103 records · Page 6Linked to original sources
PubMedDate not supplied

Blood and placental lead levels in an Indian city: a preliminary report.

A preliminary investigation was carried out in a hospital in the city of Lucknow, India, to provide information on the possible range of lead (Pb) exposure in pregnant women and fetuses, to correlate high Pb levels with various socioenvironmental factors, and to examine any possible association between reproductive outcome and Pb levels in this population. The results indicate that maternal blood lead levels were higher in those who experienced abnormal deliveries and in those who ate nonvegetarian diets or drank groundwater compared with the respective control groups. Placenta, cord blood, and fetal membranes from both normal and abnormal delivery cases showed no significant differences in their Pb content. Other socioenvironmental factors did not influence these Pb levels. However, incidence of higher Pb levels in maternal blood (17% and 38% with Pb > 25 micrograms/dl in normal and abnormal deliveries, respectively) and cord blood (> 10 micrograms/dl) reflect a need for regular monitoring and lowering of environmental Pb exposure.

Adult↗
PubMedDate not supplied

Study of drug utilization pattern in dental OPD at tertiary care teaching hospital.

Irrational prescribing is a global phenomenon. The objective of the study was to find out the prescribing practices of dental prescribers in a tertiary care teaching hospital with special emphasis on the utilization of antimicrobial agents. A prospective study was conducted in the month of March 2000. A total of 491 prescriptions were collected randomly. Prescribing pattern was analyzed using WHO basic drug indicators. The average number of drugs for prescription was 2.4. 78.8% of all prescriptions contained antimicrobial agents. It was most commonly prescribed (40.37%) group of drugs followed by anti-inflammatory and analgesics (33.8%). Fixed dose combination of ampicillin and cloxacillin was most commonly prescribed antimicrobial agents. Prophylactic use of AMA (78%) was more than therapeutic purpose (21.9%). Prophylactic use of antimicrobial agents was irrational in all the cases as duration for the use of antimicrobial agents was 5.1 +/- 0.5 days. Fixed dose combinations (45%), drugs by brand name (98.5%) were frequently used. Drug prescribed from Essential Drug List was maximum when one drug was prescribed. Results indicate that there is a scope for improving prescribing habits and minimizing the use of antimicrobial agents. This could be facilitated by periodic education to the prescribers.

Adolescent↗
PubMedDate not supplied

Follicular dendritic cell tumour of tonsil - is it an under-diagnosed entity?

Neoplasms of follicular dendritic cells are uncommon and while majority of them occur in lymph nodes, they are increasingly recognized at varied sites such as abdominal viscera. Tonsil is the most common extra nodal site for occurrence of FDCT in the head and neck region. We describe three cases of follicular dendritic cell tumour occurring in the tonsil.

Adult↗
PubMedDate not supplied

Study of root canals and their configuration in maxillary second permanent molar.

The present in-vitro study was undertaken to know root canals and their configuration (type, curvature, number of apical foramen etc) in maxillary second permanent molar. Separately, fifty teeth by radiographic method and by decalcification method were studied. Radiologically in mesiobuccal root, two root canals were found in 78% and 20% of the specimens in mesiodistal and buccolingual direction respectively. In the distobuccal root, 2 root canals were seen in 4% and 6% of the specimen in mesiodistal and buccolingual direction respectively. Two root canals also varied in both radiological as well as decalcification methods. It is concluded from the present study that mesiobuccal roots of maxillary second molar exhibited anatomical variations and aberrant findings in the root canals. More care should always be exercised to locate the extra canal in these roots.

Decalcification Technique↗