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Bacteriological study of extracted IUCDs

Harun R, Nayar S, Thum Yin Lai

Malays J Reprod Health, 1989 Dec;7(2):131-7.
PMID: 12283073

PIP: Previous studies have shown the users of intrauterine devices have a 4.4 times greater risk of pelvic inflammatory disease. This present study intends to categorize the distribution of microbes in cultures from different types of extracted copper intrauterine devices (IUCDs). Bacteriological studies of aerobic and anaerobic organisms were performed on the extracted IUCDs of 522 IUCD users; 480 wearing a Multiload Cu 250, 15 wearing a Copper T, 22 Lippes Loop and 5 a Copper 7. Cultures were negative in 46 (8.8%) IUCD cultures where 43 were Multiloads, Copper T (1) and Lippes Loop (2). 91.2% yielded bacterial growth and the commonest organisms isolated were Staphylococcus species, (23%), E.coli (9.6%) and Staphylococcus aureus (4.0%. Candida albicans, E.coli and Staphylococcus sp. were commonly isolated from Multiload, Copper T, Lippes Loop and Copper 7. Beta-hemolytic streptococci, Staphylococcus aureus and Candida sp. were frequently recovered from Multiload, Copper T and Lippes Loop. Only Multiload cultures yielded Bacillus, Streptococcus viridans, Klebsiella, Proteus, Enterobacter, Citrobacter diversus, Citrobacter freundii, Moraxella, Pseudomonas and Acinetobacter. One woman with complaint of PID yielded E.coli in her IUCD culture.
Fulltext Acute renal failure following jering ingestion

H'ng PK, Nayar SK, Lau WM, Segasothy M

Singapore Med J, 1991 Apr;32(2):148-9.
PMID: 2042077

We report two cases of acute renal failure that followed the ingestion of jering. Features of jering poisoning included clinical presentation of bilateral loin pain, fever, nausea, vomiting, oligo-anuria, haematuria and passage of sandy particles in the urine. Blood urea (40.8 mmol/l; 21.9 mmol/l) and serum creatinine (1249 mumols/l; 693 mumols/l) were markedly elevated. With conservative therapy which included rehydration with normal saline and alkalinisation of the urine with sodium bicarbonate, the acute renal failure resolved.
Fulltext Outbreak of chikungunya due to virus of Central/East African genotype in Malaysia

Noridah O, Paranthaman V, Nayar SK, Masliza M, Ranjit K, Norizah I, et al.

Med J Malaysia, 2007 Oct;62(4):323-8.
PMID: 18551938 MyJurnal

Chikungunya is an acute febrile illness caused by an alphavirus which is transmitted by infective Aedes mosquitoes. Two previous outbreaks of chikungunya in Malaysia were due to chikungunya virus of Asian genotype. The present outbreak involved two adjoining areas in the suburb of Ipoh city within the Kinta district of Perak, a state in the northern part of Peninsular Malaysia. Thirty seven residents in the main outbreak area and two patients in the secondary area were laboratory confirmed to be infected with the virus. The index case was a 44-year Indian man who visited Paramakudi, Tamil Naidu, India on 21st November 2006 and returned home on 30th of November 2006, and subsequently developed high fever and joint pain on the 3rd of December 2006. A number of chikungunya virus isolates were isolated from both patients and Aedes albopictus mosquitoes in the affected areas. Molecular study showed that the chikungunya virus causing the Kinta outbreak was of the Central/East African genotype which occurred for the first time in Malaysia.
Fulltext Co-infection of dengue virus and chikungunya virus in two patients with acute febrile illness

Nayar SK, Noridah O, Paranthaman V, Ranjit K, Norizah I, Chem YK, et al.

Med J Malaysia, 2007 Oct;62(4):335-6.
PMID: 18551940 MyJurnal

During an outbreak of chikungunya in a dengue hyperendemic area within the Kinta district of Perak, two patients with acute febrile illness were laboratory confirmed to have co-infection of both dengue and chikungunya viruses in their blood. The concomitant presence of two types of viruses transmitted by the same vector in a susceptible population contributed to the resultant event. A good understanding of virus vector ecology in association with population dynamics and wider application of improved laboratory techniques by using different cell-lines suited for optimal replication of each type of virus and the correct utilization of powerful molecular techniques will enhance accurate diagnosis of these infectious diseases.
Fulltext "Ormocer an innovative technology": A replacement for conventional cements and veneer? A comparative in vitro analysis

Rajeev V, Arunachalam R, Nayar S, Arunima PR, Ganapathy S, Vedam V

Eur J Dent, 2017 4 25;11(1):58-63.
PMID: 28435367 DOI: 10.4103/ejd.ejd_113_16

OBJECTIVE: This in vitro study was designed to assess shear bond strength (SBS) of ormocer flowable (OF) resin as a luting agent, ormocer as an indirect veneer material with portrayal of modes of failures using scanning electron microscope (SEM).
MATERIALS AND METHODS: Sixty maxillary central incisors were divided into Group I, II, and III with 20 samples each based on luting cement used. They were OF, self-adhesive (SA) cement, and total etch (TE) cement. These groups were subdivided into "a" and "b" of ten each based on the type of veneering materials used. Veneer discs were fabricated using Ormocer restorative (O) and pressable ceramic (C). Specimens were thermocycled and loaded under universal testing machine for SBS. The statistical analysis was done using one-way ANOVA post hoc Tukey honest significant difference method.
RESULTS: A significant difference was observed between the Groups I and II (P < 0.05). The highest mean bond strength when using ormocer veneer was obtained with the Group Ia (19.11 ± 1.92 Mpa) and lowest by Group IIa (8.1 ± 1.04 Mpa), whereas the highest mean bond strength while using ceramic veneer was of similar range for Group Ib (18.04 ± 4.08 Mpa) and Group IIIb (18.07 ± 1.40 Mpa). SEM analysis revealed OF and TE presented mixed type of failure when compared with SA where failure mode was totally adhesive.
CONCLUSION: OF was found equally efficient like TE. Bond strength of ormocer as a veneer was not inferior to ceramic making it one of the promising additions in the field of dentistry.