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Fulltext Acute gonococcal sacro-iliitis--a case report

Deshmukh RG

Med J Malaysia, 1995 Dec;50(4):411-4.
PMID: 8668065

Acute infective sacro-iliitis is a rare condition. Though gonococcal arthritis is not uncommon, this organism does not appear to have been isolated from the sacro-iliac joint. The first proven case of gonococcal sacro-iliitis is reported here. Difficulties in correct diagnosis of infective sacro-iliitis are highlighted. Management of gonococcal sacro-iliitis is described. With the increase in number of gonococcal infections, a case can be made for routine culture of joint material N. Gonorrhoeae in cases of septic arthritis in patients at high risk.
Fulltext Claw toes correction and factor XIII deficiency--a case report

Deshmukh RG, Bosco J

Med J Malaysia, 1995 Dec;50(4):417-9.
PMID: 8668067

A 26-year-old male presented with claw toes and Factor XIII deficiency. Correction for his deformity was undertaken. Pre, intra and post-operative transfusions of plasma and blood prevented any haemorrhagic complications.
An intramedullary cement spacer in total hip arthroplasty

Deshmukh RG, Thevarajan K, Kok CS, Sivapathasundaram N, George SV

J Arthroplasty, 1998 Feb;13(2):197-9.
PMID: 9526214

Revision arthroplasty of the hip is often complicated by infection, bone loss, and perioperative fracture of the femur. A simple, inexpensive spacer that keeps tissue planes intact and prevents soft tissue contracture during the interoperative period of a 2-stage revision is described. This can provide intramedullary support to a fractured or weak femur and enable local antibiotic delivery, as well as permit limited mobilization of the patient. It can be easily fabricated during surgery using universally available materials and can be tailored for specific requirements. Such a spacer was used in 5 cases. The experience is presented, and the technique and pitfalls are discussed.
Primary hyperparathyroidism presenting with pathological fracture

Deshmukh RG, Alsagoff SA, Krishnan S, Dhillon KS, Khir AS

J R Coll Surg Edinb, 1998 Dec;43(6):424-7.
PMID: 9990797

Primary hyperparathyroidism (PHPT) is an intriguing condition. Routine automated biochemical screening has made the diagnosis commonplace in developed countries and the disease is diagnosed early in its course when it is often asymptomatic. In developing countries or in recent immigrants from these countries, PHPT is often seen in an advanced stage with bone involvement. Associated dietary deficiencies may alter the biochemical profile and cause a diagnostic dilemma. It is important to include it in the differential diagnosis of pathological fractures. We report three cases of PHPT presenting with pathological fractures and discuss their diagnosis and management.
Fulltext Characterization of influenza virus among influenza like illness cases in Mumbai, India

Roy S, Dahake R, Patil D, Tawde S, Mukherjee S, Athlekar S, et al.

Virusdisease, 2014;25(3):372-5.
PMID: 25674606 DOI: 10.1007/s13337-013-0190-8

The present study was carried out to monitor influenza viruses by identifying the virus and studying the seasonal variation during 2007-2009 in Mumbai. A total of 193 clinical respiratory samples (nasal and throat swab) were collected from patients having influenza like illness in Mumbai region. One-step real-time reverse-transcriptase PCR (rRTPCR) was used to detect Influenza type A (H1 and H3) and Influenza type B virus. Isolation of the virus was carried out using in vitro system which was further confirmed and typed by hemagglutination assay and hemagglutination inhibition assay. Out of 193 samples 24 (12.4 3%) samples tested positive for influenza virus, of which 13 (6.73 %) were influenza type A virus and 10 (5.18 %) were influenza type B virus, while 1 sample (0.51 %) was positive for both. By culture methods, 3 (1.55 %) viral isolates were obtained. All the three isolates were found to be Influenza type B/Malaysia (Victoria lineage) by Hemagglutination Inhibition Assay. The data generated from the present study reveals that both Influenza type A and B are prevalent in Mumbai with considerable activity. The peak activity was observed during monsoon season.
A technique to obtain correct rotational alignment during closed locked intramedullary nailing of the femur

Deshmukh RG, Lou KK, Neo CB, Yew KS, Rozman I, George J

Injury, 1998 Apr;29(3):207-10.
PMID: 9709422

Closed intramedullary nailing is a successful method of treating adult femoral shaft fractures. In comminuted or segmental fractures, this operation is associated with an incidence of rotational malalignment and malunion. After locked nailing, this can only be corrected by further operation. A simple method of judging and obtaining rotational alignment in such cases intra-operatively is described. A comparison of two groups of patients with such fractures, one using this technique and the other using conventional methods of judging alignment, revealed statistically significant improvement in rotational alignment (p = 0.016).
Degradation of simulated Direct Orange-S (DO-S) textile effluent using nonthermal atmospheric pressure plasma jet

Vasu D, Navaneetha Pandiyaraj K, Padmanabhan PVA, Pichumani M, Deshmukh RR, Jaganathan SK

Environ Geochem Health, 2021 Feb;43(2):649-662.
PMID: 31679080 DOI: 10.1007/s10653-019-00446-9

One of the major environmental issues of textile industries is the discharge of large quantities of textile effluents, which are source of contamination of water bodies on surface of earth and quality of groundwater. The effluents are toxic, non-biodegradable, carcinogenic and prodigious threats to human and aquatic creatures. Since textile effluents can be treated efficiently and effectively by various advanced oxidation processes (AOPs). Among the various AOPs, cold atmospheric pressure plasma is a promising method among many prominent techniques available to treat the effluents. In this paper, we report about the degradation of simulated effluent, namely Direct Orange-S (DO-S) aqueous solution, using nonthermal atmospheric pressure plasma jet. The plasma treatment of DO-S aqueous solution was carried out as a function of various operating parameters such as potential and treatment time. The change in properties of treated DO-S dye was investigated by means of various analytical techniques such as high-performance liquid chromatography, UV-visible (UV-Vis) spectroscopy and determination of total organic content (TOC). The reactive species present in the samples were identified using optical emission spectrometry (OES). OES results confirmed that the formation of reactive oxygen and nitrogen species during the plasma treatment in the liquid surface was responsible for dye oxidation and degradation. Degradation efficiency, as monitored by color removal efficiency, of 96% could be achieved after 1 h of treatment. Concurrently, the TOC values were found to decrease with plasma treatment, implying that the plasma treatment process enhanced the non-toxicity nature of DO-S aqueous solution. Toxicity of the untreated and plasma-treated dye solution samples was studied using Escherichia coli (E. coli) and Staphylococcus (S. aureus) organisms, which demonstrated that the plasma-treated dye solution was non-toxic in nature compared with untreated one.
PEGylated PAMAM dendrimers: Enhancing efficacy and mitigating toxicity for effective anticancer drug and gene delivery

Luong D, Kesharwani P, Deshmukh R, Mohd Amin MCI, Gupta U, Greish K, et al.

Acta Biomater, 2016 10 01;43:14-29.
PMID: 27422195 DOI: 10.1016/j.actbio.2016.07.015

Poly(amidoamine) dendrimers (PAMAM) are well-defined, highly branched, nanoscale macromolecules with numerous active amine groups on the surface. PAMAM dendrimer can enhance the solubility of hydrophobic drugs, and with numerous reactive groups on the surface PAMAM dendrimer can be engineered with various functional groups for specific targeting ability. However, in physiological conditions, these amine groups are toxic to cells and limit the application of PAMAM. In the recent years, polyethylene glycol (PEG) conjugation has been the most widely used approach to reduce the toxicity of the active group on dendrimer surface. PEG molecules are known to be inert, non-immunogenic, and non-antigenic with a significant water solubility. PEGylated PAMAM-mediated delivery could not only overcome the limitations of dendrimer such as drug leakage, immunogenicity, hemolytic toxicity, systemic cytotoxicity but they also have the ability to enhance the solubilization of hydrophobic drugs and facilitates the potential for DNA transfection, siRNA delivery and tumor targeting. This review focuses on the recent developments on the application and influence of PEGylation on various biopharmaceutical properties of PAMAM dendrimers.
STATEMENT OF SIGNIFICANCE: It is well established that dendrimers have demonstrated promising potentials for drug delivery. However, the inherent toxicity poses challenges for its clinical translation. In this regard, PEGylation has helped mitigate some of the toxicity concerns of dendrimers and have paved the way forward for testing its translational potentials. The review is a collection of articles demonstrating the utility of PEGylation of the most studied PAMAM dendrimers. To our knowledge, this is a first such attempt to draw reader's attention, specifically, towards PEGylated PAMAM dendrimers.
Fulltext Force degradation behavior of glucocorticoid deflazacort by UPLC: isolation, identification and characterization of degradant by FTIR, NMR and mass analysis

Deshmukh R, Sharma L, Tekade M, Kesharwani P, Trivedi P, Tekade RK

J Biomed Res, 2016 Mar;30(2):149-161.
PMID: 28276670 DOI: 10.7555/JBR.30.20150074

In this investigation, sensitive and reproducible methods are described for quantitative determination of deflazacort in the presence of its degradation product. The method was based on high performance liquid chromatography of the drug from its degradation product on reverse phase using Acquity UPLC BEH C18 columns (1.7 µm, 2.1 mm × 150 mm) using acetonitrile and water (40:60 V/V) at a flow rate of 0.2 mL/minute in UPLC. UV detection was performed at 240.1 nm. Deflazacort was subjected to oxidative, acid, base, hydrolytic, thermal and photolytic degradation. The drug was found to be stable in water and thermal stress, as well as under neutral stress conditions. However, forced-degradation study performed on deflazacort showed that the drug degraded under alkaline, acid and photolytic stress. The degradation products were well resolved from the main peak, which proved the stability-indicating power of the method. The developed method was validated as per ICH guidelines with respect to accuracy, linearity, limit of detection, limit of quantification, accuracy, precision and robustness, selectivity and specificity. Apart from the aforementioned, the results of the present study also emphasize the importance of isolation characterization and identification of degradant. Hence, an attempt was made to identify the degradants in deflazacort. One of the degradation products of deflazacort was isolated and identified by the FTIR, NMR and LC-MS study.