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author:("ravindran, S.")
1.  Electrocautery Assisted Harvesting of Free Gingival Graft to Increase the Width of Attached Gingiva - An Uncommon Case Report 
Procuring a free gingival autograft for the purpose of gingival augmentation has been advocated in areas of inadequate width of attached gingiva that result in gingival recession and/or accumulation of local factors. As obtaining the graft from the palatal donor site with conventional scalpel techniques can result in problems such as prolonged bleeding, increased surgical time and patient discomfort, alternative methods have been advocated to procure such grafts using lasers and electrocautery. This case report elaborates, a free gingival graft harvested for the purpose of increasing the width of attached gingiva using electrocautery principles. The parameters assessed included the extent of patient reported discomfort at the donor site and clinical gain of keratinized and attached gingival width.
PMCID: PMC4225992  PMID: 25386540
Attached gingiva; Electrocautery; Free gingival graft; Keratinised gingiva
2.  Purification, crystallization, preliminary X-ray diffraction and molecular-replacement studies of great cormorant (Phalacrocorax carbo) haemoglobin 
The great cormorant hemoglobin has been isolated, purified and crystallized and the three dimensional structure is solved using molecular replacement technique.
Haemoglobin is the iron-containing oxygen-transport metalloprotein that is present in the red blood cells of all vertebrates. In recent decades, there has been substantial interest in attempting to understand the structural basis and functional diversity of avian haemoglobins. Towards this end, purification, crystallization, preliminary X-ray diffraction and molecular-replacement studies have been carried out on cormorant (Phalacrocorax carbo) haemoglobin. Crystals were grown by the hanging-drop vapour-diffusion method using PEG 3350, NaCl and glycerol as precipitants. The crystals belonged to the trigonal system P3121, with unit-cell parameters a = b = 55.64, c = 153.38 Å, β = 120.00°; a complete data set was collected to a resolution of 3.5 Å. Matthews coefficient analysis indicated that the crystals contained a half-tetramer in the asymmetric unit.
PMCID: PMC4231857  PMID: 25372822
avian haemoglobin; great cormorant; Phalacrocorax carbo; molecular replacement
3.  Increased IL-12 and decreased IL-33 serum levels are associated with increased Th1 and suppressed Th2 cytokine profile in patients with diabetic nephropathy (CURES-134) 
The role played by recently discovered novel cytokine IL-33 in controlling T-helper (Th)1 and Th2 cytokines under conditions of diabetic nephropathy (DN) is less well studied. In the present study, we estimated the levels of IL-33 along with both Th1 and Th2 cytokines in the serum of normal glucose tolerant (NGT), diabetic subjects with (DN) or without nephropathy (DM) and correlated it with the clinical risk factors of diabetes and nephropathy. 222 study subjects were recruited from the Chennai Urban Rural Epidemiology Study (CURES): 61 NGT, 79 DM and 82 DN. IL-33 level was estimated by ELISA while other Th1 (IL-12, IFN-gamma and IL-2) and Th2 (IL-4, IL-5 and IL-13) cytokines were measured using a Bio-plex bead assay. DM subjects showed a mixed Th1-Th2 profile (increased IFN-g, IL-12, IL-4 and IL-13 and decreased IL-33) while DN subjects showed enhanced Th1 profile (increased IFN-g, IL-2 and IL-12) with suppression of Th2 cytokine (decreased IL-33 and IL-13). The IL-33 levels showed a serial decline with increasing severity of insulin resistance and microalbuminuria. DN was associated with enhanced Th1 response and suppression of Th2 responses which might be due to inreased levels of IL-12 and decreased levels of IL-33 cytokines respectively.
PMCID: PMC4270517  PMID: 25550844
Diabetic nephropathy; IL-33; IL-2; IL-12; IFN-γ; IL-4; IL-5; IL-13
4.  Crystal structures of (E)-(3-ethyl-1-methyl-2,6-di­phenyl­piperidin-4-yl­idene)amino phenyl carbonate and (E)-(3-isopropyl-1-methyl-2,6-di­phenyl­piperidin-4-yl­idene)amino phenyl carbonate 
The title compounds are the 3-ethyl, (I), and 3-isopropyl, (II), derivatives of (1-methyl-2,6-diphenylpiperidin-4-ylidene)amino phenyl carbonate. The main difference in the conformation of the two compounds is the angle of inclination of the phenoxycarbonyl ring with respect to the piperidine ring mean plane, with a dihedral angle of 2.05 (8)° in (I) and 45.24 (13)° in (II).
In the title compounds, C27H28N2O3, (I), and C28H30N2O3, (II), the conformation about the C=N bond is E. The piperidine rings adopt chair conformations with the attached phenyl rings almost normal to their mean planes, the dihedral angles being 85.82 (8) and 85.84 (7)° in (I), and 87.98 (12) and 86.42 (13)° in (II). The phenyl rings are inclined to one another by 52.87 (8)° in (I) and by 60.51 (14)° in (II). The main difference in the conformation of the two compounds is the angle of inclination of the phen­oxy­carbonyl ring to the piperidine ring mean plane. In (I), these two planes are almost coplanar, with a dihedral angle of 2.05 (8)°, while in (II), this angle is 45.24 (13)°. In the crystal of (I), mol­ecules are linked by C—H⋯O hydrogen bonds, forming inversion dimers with R 2 2(14) loops. The dimers are linked via C—H⋯π inter­actions forming a three-dimensional network. In the crystal of (II), there are no significant inter­molecular inter­actions present.
PMCID: PMC4257207  PMID: 25484651
crystal structure; piperidine; oxime; 2,6-di­phenyl­piperidine
5.  Serum Adiponectin Helps to Differentiate Type 1 and Type 2 Diabetes Among Young Asian Indians 
This study assessed whether serum adiponectin could be used as a biochemical marker to differentiate type 1 diabetes mellitus (T1DM) from type 2 diabetes mellitus (T2DM) among young Asian Indians.
Research Design and Methods
We recruited age- and sex-matched individuals with physician-diagnosed T1DM (n=70) and T2DM (n=72). All were 12–27 years of age with a duration of diabetes of >2 years, at a large tertiary-care diabetes center in Chennai, southern India. Age- and sex-matched individuals with normal glucose tolerance (NGT) (n=68) were selected from an ongoing population study. NGT was defined using World Health Organization criteria. Serum total adiponectin was measured by enzyme-linked immunosorbent assay. Receiver operating characteristic (ROC) curves were used to identify adiponectin cut points for discriminating T1DM from T2DM.
Adiponectin levels were higher in T1DM and lower in T2DM compared with the NGT group (9.89, 3.88, and 6.84 μg/mL, respectively; P<0.001). In standardized polytomous regression models, adiponectin was associated with T1DM (odds ratio [OR]=1.131 per SD; 95% confidence interval [CI], 1.025–1.249) and T2DM (OR=0.628 per SD; 95% CI, 0.504–0.721) controlled for age, gender, waist circumference, body mass index, hypertension, glycated hemoglobin, total cholesterol, serum triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, family history of T2DM, and estimated glomerular filtration rate. Using ROC analysis, an adiponectin cut point of 5.1 μg/mL had a C statistic of 0.886 (95% CI, 0.836–0.953), sensitivity of 80.6%, and specificity of 80.6% to differentiate T1DM from T2DM. Using the 5.1 μg/mL cut point, 80.6% of T1DM and 81.8% of T2DM would be correctly classified.
Serum adiponectin is a useful biochemical marker for differentiating T1DM and T2DM among young Asian Indians.
PMCID: PMC3746282  PMID: 23902401
6.  Root Canal Treatment of Mandibular Second Premolar with Three Separate Roots and Canals Using Spiral Computed Tomographic 
Case Reports in Dentistry  2014;2014:816576.
Anatomic and internal morphology of a root canal system is more complex and differs for each individual tooth of which mandibular premolars have earned the reputation for having aberrant anatomy. The occurrence of three canals with three separate foramina in mandibular second premolars is very rare. A wider knowledge on both clinical and radiological anatomy especially spiral computed tomographic is absolutely essential for the success of endodontic treatment. These teeth may require skillful and special root canal special shaping and obturating techniques. This paper reports an unusual case of a mandibular second premolar with atypical canal pattern that was successfully treated endodontically.
PMCID: PMC4101924  PMID: 25101187
7.  Burning mouth syndrome: A review on its diagnostic and therapeutic approach 
Journal of Pharmacy & Bioallied Sciences  2014;6(Suppl 1):S21-S25.
Burning mouth syndrome (BMS), a chronic and intractable orofacial pain syndrome is characterized by the presence of burning sensation of the oral mucosa in the absence of specific oral lesion. This condition affects chiefly of middle aged and elderly woman with hormonal changes or psychological disorders. In addition to burning sensation, patient with BMS also complains of oral mucosal pain, altered taste sensation, and dry mouth. This condition is probably of multifactorial origin, often idiopathic and its exact etiopathogenesis remains unclear. So far, there is no definitive cure for this condition and most of the treatment approaches, medications remains unsatisfactory. An interdisciplinary and systematic approach is required for better patient management. The purpose of this article is to present a review of epidemiology, clinical presentation, classification, etiopathogenesis, diagnosis and management of BMS.
PMCID: PMC4157273  PMID: 25210377
Burning mouth syndrome; classification; dysgeusia; epidemiology; etiology and treatment; stomatodynia
8.  Oral Manifestation of Autosomal Recessive Congenital Ichthyosis in a 2-Year-Old Patient 
Case Reports in Dentistry  2014;2014:483293.
Ichthyosis is a heterogeneous family of hereditary keratinisation disorders mostly characterized by variable erythema of the whole body and different scaling patterns. Although these disorders affect tissues of epidermal origin, there is little evidence regarding the oral and dental manifestations of Lamellar Ichthyosis. A case report of early childhood caries in lamellar ichthyosis is presented and the dental consideration and management is discussed in this paper.
PMCID: PMC4068097  PMID: 24995134
9.  Intravesical ALT-803 and BCG Treatment Reduces Tumor Burden in a Carcinogen Induced Bladder Cancer Rat Model; a Role for Cytokine Production and NK Cell Expansion 
PLoS ONE  2014;9(6):e96705.
Intravesical Bacillus Calmette-Guérin (BCG) has been shown to induce a specific immunologic response (i.e., activation of IL-2 and effector T-cells), while preclinical studies using ALT-803 (mutated IL-15 analogue combined with IL-15Rα-Fc fusion) have shown promising results by prolonging the agent's half-life and stimulating CD8+ T-cells. Based on these results, we hypothesized that the intravesical administration of ALT-803 along with BCG will generate an immunologic response leading to significant bladder tumor burden reduction. Using a well-established carcinogen induced rat non-muscle invasive bladder cancer (NMIBC) model, we studied the effects of intravesical ALT-803 with and without BCG. Rat tissues were evaluated to document treatment response. Intravesical ALT-803 was safe and well tolerated alone and in combination with BCG. As a single treatment agent, ALT-803 reduced tumor burden by 35% compared to control whereas BCG alone only reduced tumor burden by 15%. However, the combination of ALT-803 plus BCG reduced tumor burden by 46% compared to control. Immune monitoring suggested that the antitumor response was linked to the production and secretion of IL-1α, IL-1β and RANTES, which in turn, induced the proliferation and activation of NK cells. Lastly, tumoral responses of the combinational treatment were associated with 76% reduction in angiogenesis, which is significantly higher than when assessed with either agent alone. The enhanced therapeutic index seen with this duplet provides justification for the development of this regimen for future clinical trials.
PMCID: PMC4045574  PMID: 24896845
10.  (E)-1,3-Dimethyl-2,6-di­phenyl­piperidin-4-one O-(phen­oxy­carbon­yl)oxime 
The title piperidine derivative, C26H26N2O3, has an E conformation about the N=C bond. The piperidine ring has a chair conformation and its mean plane is almost perpendicular to the attached phenyl rings, making dihedral angles of 87.47 (9) and 87.34 (8)°. The planes of these two phenyl rings are inclined to one another by 60.38 (9)°. The plane of the terminal phenyl ring is tilted at an angle of 32.79 (9)° to the mean plane of the piperidine ring. The mol­ecular conformation is stabilized by two intra­molecular C—H⋯O contacts. There are no significant inter­molecular inter­actions in the crystal.
PMCID: PMC4051028  PMID: 24940283
11.  Adenoid Cystic Carcinoma of the Buccal Mucosa: A Case Report with Review of Literature 
Minor salivary gland neoplasms of the buccal mucosa are relatively uncommon. Adenoid cystic carcinoma (ACC), a well-defined entity, occurs most of the times in the parotid, submandibular glands and palate, as far as the intraoral site is concerned. Adenoid cystic carcinoma tends to have an indolent, extended clinical course with wide local infiltration and late distant metastases. We are presenting a case of an adenoid cystic carcinoma of the buccal mucosa in a 48-year-old female patient.
PMCID: PMC4003663  PMID: 24783155
Salivary gland tumour; Perineural invasion; Cylindroma
12.  Ethnomedicinal plants used for the treatment of cuts and wounds by Kuruma tribes, Wayanadu districts of Kerala, India 
To study the ethnomedicinal uses by the Kuruma tribals for discovering new drugs to cure cuts and wounds so as to provid the data scientifically evaluated.
A survey was conducted during May 2008–September 2009 to collect information on medicinal plants used by the Kuruma tribes and queries were made on the various species of plants used regularly and occasionally to cure cuts and wounds.
The present study includes information on 34 plant species belonging to 32 genera and 25 families used by Kuruma tribe of Wayanad district of Kerala for the treatment of cuts and wounds.
The present study of the knowledge on the folklore uses of the medicinal plants used by Kuruma tribes leads to effective utilization of herbal medicines in the future.
PMCID: PMC4025284  PMID: 25183135
Ethnomedicine; Kuruma tribe; Cuts; Wounds; Wayanad; Kerala
13.  Methyl 1-phenyl-3-p-tolyl-1,9b-di­hydro-3H-chromeno[4,3-c]isoxazole-3a(4H)-carboxyl­ate 
In the title compound, C25H23NO4, the pyran ring of the chroman moiety has an envelope conformation with the methyl­ene C atom as the flap. The isoxazole ring has a twist conformation on the O—C bond. The dihedral angle between their mean planes is 57.87 (9)°. The attached phenyl and benzene rings are twisted away from its mean plane by 56.19 (10) and 50.57 (10)°, respectively. These two rings are normal to each other, subtending a dihedral angle of 89.2 (1)°. In the crystal, there are no classical hydrogen bonds; the mol­ecules are linked via C—H⋯π inter­actions, forming a two-dimensional network lying parallel to (10-1).
PMCID: PMC3998385  PMID: 24764992
14.  Increased Th1 and suppressed Th2 serum cytokine levels in subjects with diabetic coronary artery disease 
The role played by T helper cytokines under chronic, low grade inflammation as seen in type-2 Diabetes Mellitus (T2DM) and Coronary Artery Disease (CAD) co-morbidity is less well studied. In the present study, we measured the serum levels of both Th1 and Th2 cytokines and correlated it with clinical risk factors for T2DM (Insulin Resistance (IR), Glycated haemoglobin (HbA1c)) and CAD (C-Reactive Protein (CRP), Intima Media Thickness (IMT) and Augmentation index (AGI)) in T2DM subjects with/without CAD.
The study subjects were recruited from Chennai Urban Rural Epidemiology Study (CURES). Serum cytokine profile was determined by multiplex cytokine assay in Control (n = 61), T2DM (n = 60), CAD (n = 23) and T2DM-CAD (n = 21) subjects.
T2DM subjects showed a mixed Th1-Th2 profile. CAD subjects presented a Th1 profile with modest Th2 suppression while T2DM-CAD subjects showed enhanced Th1 profile with strong suppression of Th2 cytokines. Both Th1 and Th2 cytokines showed a positive correlation with FPG, HbA1c, hsCRP, IMT and AGI. Logistic regression analysis revealed a significant association of IL-12 (OR = 9.3; 95% CI = 3.2-70.7; p = 0.016), IFN-γ (OR = 2.8; 95% CI = 2.7-2.9, p = 0.010), IL-4 (OR = 2.7; 95% CI 2.7-2.7, p = 0.010), IL-5 (OR = 1.1; 95% CI = 1.0-1.4; p = 0.003) and IL-13 (OR = 2; 95% CI = 1.7-2.6; p = 0.017) with T2DM-CAD.
In conclusion, from the present study it appears that transition from T2DM or CAD to T2DM-CAD co-morbidity is associated with strong down regulation of Th2 cytokines and enhancement of Th1 responses.
PMCID: PMC3893369  PMID: 24383855
CAD; T2DM; IL-2; IL-12; IFN-γ; IL-4; IL-5; IL-13
15.  PEComa: A Perivascular Epithelioid Cell Tumor in the Liver—A Case Report and Review of the Literature 
Case Reports in Medicine  2013;2013:904126.
Perivascular epithelioid cell tumors are soft tissue tumors that can occur in various locations in the body whose incidence is rising. Hepatic PEComas are quite rare and diagnosis involves positivity of Melan-A and HMB45 on immunohistochemistry. Usual treatment is surgery for benign tumors and chemotherapy including mTOR inhibitors for malignant tumors. Here we discuss the radiological and pathological diagnosis, evaluation, and management of a hepatic PEComa. We describe a 51-year-old patient who was diagnosed incidentally after unusual physical exam findings.
PMCID: PMC3891746  PMID: 24489554
16.  Altered Development of the Dorsolateral Prefrontal Cortex in Chromosome 22q11.2 Deletion Syndrome: an in vivo 1H Spectroscopy study 
Biological psychiatry  2012;72(8):684-691.
Chromosome 22q11.2 deletion syndrome (22q11DS), the most common microdeletion in humans, is associated with multiple medical features, almost universal cognitive deficits, and a high-risk of schizophrenia. The metabolic basis of the psychological/psychiatric features is not well understood. Volumetric brain imaging studies have shown that gray matter abnormalities in the dorsolateral prefrontal cortex (DLPFC), an area that is believed to be integral for higher neurocognition, as well as being involved in schizophrenia, are associated with the psychological manifestations. However, studies have not characterized any possible metabolite alterations within the DLPFC of children with 22q11DS and their correlations with the psychological findings.
We conducted a short echo-time, single-voxel, in vivo 1H spectroscopy study involving children with 22q11DS (n=26) and matched control subjects (n=23).
Absolute N-acetyl-aspartate (NAA) levels from the DLPFC were significantly elevated in children with 22q11DS compared to control subjects and the elevations were associated with poor global functioning and higher rates of comorbid attention deficit hyperactivity disorder. Children with 22q11DS had a lack of an age-associated decrease in NAA levels, a trend seen in the control subjects. However, the results did not remain statistically significant after corrections for multiple comparisons were made.
These findings represent the first report of 1H spectroscopy in children with 22q11DS. The elevated DLPFC NAA levels and the lack of decreasing trends in NAA with age in the 22q11DS group relative to controls suggest an alteration in cortical development. Also, such neuronal dysmaturation is associated with psychopathology in children with 22q11DS.
PMCID: PMC3440535  PMID: 22633947
Chromosome 22q11.2 deletion syndrome; velocardiofacial syndrome; DiGeorge syndrome; neuropsychology; ADHD; 1H MRS; spectroscopy; N-acetyl-aspartate; NAA
17.  Novel fusion of GLP-1 with a domain antibody to serum albumin prolongs protection against myocardial ischemia/reperfusion injury in the rat 
Glucagon-like peptide-1 (GLP-1) and its mimetics reduce infarct size in the setting of acute myocardial ischemia/reperfusion (I/R) injury. However, the short serum half-life of GLP-1 and its mimetics may limit their therapeutic use in acute myocardial ischemia. Domain antibodies to serum albumin (AlbudAbs) have been developed to extend the serum half-life of short lived therapeutic proteins, peptides and small molecules. In this study, we compared the effect of a long acting GLP-1 agonist, DPP-IV resistant GLP-1 (7–36, A8G) fused to an AlbudAb (GAlbudAb), with the effect of the GLP-1 mimetic, exendin-4 (short half-life GLP-1 agonist) on infarct size following acute myocardial I/R injury.
Male Sprague–Dawley rats (8-week-old) were treated with vehicle, GAlbudAb or exendin-4. Myocardial ischemia was induced 2 h following the final dose for GAlbudAb and 30 min post the final dose for exendin-4. In a subgroup of animals, the final dose of exendin-4 was administered (1 μg/kg, SC, bid for 2 days) 6 h prior to myocardial ischemia when plasma exendin-4 was at its minimum concentration (Cmin). Myocardial infarct size, area at risk and cardiac function were determined 24 h after myocardial I/R injury.
GAlbudAb and exendin-4 significantly reduced myocardial infarct size by 28% and 23% respectively, compared to vehicle (both p < 0.01 vs. vehicle) after I/R injury. Moreover, both GAlbudAb and exendin-4 markedly improved post-ischemic cardiac contractile function. Body weight loss and reduced food intake consistent with the activation of GLP-1 receptors was observed in all treatment groups. However, exendin-4 failed to reduce infarct size when administered 6 h prior to myocardial ischemia, suggesting continuous activation of the GLP-1 receptors is needed for cardioprotection.
Cardioprotection provided by GAlbudAb, a long acting GLP-1 mimetic, following myocardial I/R injury was comparable in magnitude, but more sustained in duration than that produced by short-acting exendin-4. Very low plasma concentrations of exendin-4 failed to protect the heart from myocardial I/R injury, suggesting that sustained GLP-1 receptor activation plays an important role in providing cardioprotection in the setting of acute myocardial I/R injury. Long-acting GLP-1 agonists such as GAlbudAb may warrant additional evaluation as novel therapeutic agents to reduce myocardial I/R injury during acute coronary syndrome.
PMCID: PMC3852957  PMID: 24125539
Glucagon-like peptide-1 (GLP-1); Exendin-4; Anti-albumin-binding domain antibody; Rat; Cardioprotection
18.  Indoor Navigation by People with Visual Impairment Using a Digital Sign System 
PLoS ONE  2013;8(10):e76783.
There is a need for adaptive technology to enhance indoor wayfinding by visually-impaired people. To address this need, we have developed and tested a Digital Sign System. The hardware and software consist of digitally-encoded signs widely distributed throughout a building, a handheld sign-reader based on an infrared camera, image-processing software, and a talking digital map running on a mobile device. Four groups of subjects—blind, low vision, blindfolded sighted, and normally sighted controls—were evaluated on three navigation tasks. The results demonstrate that the technology can be used reliably in retrieving information from the signs during active mobility, in finding nearby points of interest, and following routes in a building from a starting location to a destination. The visually impaired subjects accurately and independently completed the navigation tasks, but took substantially longer than normally sighted controls. This fully functional prototype system demonstrates the feasibility of technology enabling independent indoor navigation by people with visual impairment.
PMCID: PMC3792873  PMID: 24116156
19.  Methyl 9-hy­droxy-15-methyl-2-oxo-11-(pyren-1-yl)-10-oxa-15-aza­tetra­cyclo­[,12.03,8]penta­deca-3(8),4,6-triene-12-carboxyl­ate 
In the title compound, C32H25NO5, the furan and pyrrole rings each adopt an envelope conformation, the respective flap atoms being the C atom bearing the pyrene substituent and the CH2 atom adjacent to the N atom. The mol­ecular conformation is stabilized by an intra­molecular O—H⋯N hydrogen bond. In the crystal, C—H⋯O contacts link the mol­ecules, forming a two-dimensional network parallel to (001).
PMCID: PMC3790429  PMID: 24098248
20.  Methyl 8-bromo-3-[1-(4-meth­oxy­phen­yl)-4-oxo-3-phenyl­azetidin-2-yl]-1-methyl-1,2,3,3a,4,9b-hexa­hydro­chromeno[4,3-b]pyrrole-3a-carboxyl­ate 
In the title compound, C30H29BrN2O5, the β-lactam ring is essentially planar, with the O atom displaced from this plane by 0.856 (9) Å, and forming dihedral angles of 24.35 (13) and 89.42 (14)° with the planes of the benzene substituent groups on this ring. The tetra­hydro­pyran ring adopts an envelope conformation with the C atom bearing the β-lactam ring as the flap. In the crystal, weak C—H⋯O hydrogen bonds with carboxyl and tetra­hydro­pyran O-atom acceptors give rise to a chain structure extending along the b-axis direction.
PMCID: PMC3790430  PMID: 24098249
22.  (2E,4E)-Ethyl 5-(2,4-di­chloro­phenyl­sulfon­yl)penta-2,4-dienoate 
In the title compound, C13H12Cl2O4S, both C=C double bonds adopt an E conformation. The S atom has a distorted tetra­hedral geometry with bond angles ranging from 103.03 (12) to 118.12 (13)°. The eth­oxy­carbonyl group is disordered over two sets of sites, with site-occupancy factors of 0.739 (11) and 0.261 (11). In the crystal, C—H⋯O inter­actions link the mol­ecules into chains mol­ecules running parallel to the a axis.
PMCID: PMC3884450  PMID: 24427029
23.  14-Meth­oxy-4,6-dimethyl-9-phenyl-8,12-dioxa-4,6-di­aza­tetra­cyclo­[,7.013,18]octa­deca-2(7),13,15,17-tetra­ene-3,5,11-trione 
The title compound, C23H20N2O6, crystallizes with two mol­ecules in the asymmetric unit in which the dihedral angles between the mean planes of the pyran and phenyl rings are 66.6 (1) and 61.9 (1) °. The fused pyrone and pyran rings each adopts a sofa conformation. In the crystal, C—H⋯O hydrogen bonds link the mol­ecules, forming a two-dimensional network parallel to [001].
PMCID: PMC3793711  PMID: 24109298
24.  Lip prints: Role in forensic odontology 
Journal of Pharmacy & Bioallied Sciences  2013;5(Suppl 1):S95-S97.
Identification plays a major role in any crime investigation. The pattern of wrinkles on the lips has individual characteristics like fingerprints. Cheiloscopy is a forensic investigation technique that deals with identification of humans based on lips traces. In the past decades, lip-print studies attracted the attention of many scientists as a new tool for human identification in both civil and criminal issues. The lip crease pattern is on the vermilion border of the lip, which is quite mobile and lip prints may vary in appearance according to the pressure, direction and method used in making the print. It concludes by enlightening the readers with the fact that the possibilities to use the red part of lips to identify a human being are wider than it is commonly thought.
PMCID: PMC3722715  PMID: 23946586
Cheiloscopy; criminal issues; lip prints; lips traces
25.  Effect of Filarial Infection on Serum Inflammatory and Atherogenic Biomarkers in Coronary Artery Disease (CURES-121) 
Helminth infections can potentially confer protection against metabolic disorders, possibly through immunomodulation. In this study, the baseline prevalence of lymphatic filariasis (LF) among subjects without (N = 236) and with (N = 217) coronary artery disease (CAD) was examined as part of the Chennai Urban Rural Epidemiological Study (CURES). The prevalence of LF was not significantly different between CAD− and CAD+ subjects. The LF antigen load and antibody levels indicated comparable levels of infection and exposure between the groups. Within the CAD group, LF+ and LF− subjects had no significant difference in the intimal medial thickness and high-sensitivity C-reactive protein values. However, LF infection was associated with augmented levels of tumor necrosis factor-α and interleukin-6 among CAD+ subjects. The LF infection had no effect on serum adipocytokine profile. In conclusion, unlike type-2 diabetes, there is no association between the prevalence of LF and CAD and also no evidence of protective immunomodulation of LF infection on CAD in the Asian Indian population.
PMCID: PMC3335688  PMID: 22556082

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