Vitamin A, C and E Status in Type II Diabetes Mellitus Patients of Sub-Himalayan Region

Background:Vitamin A, vitamin C, and vitamin E are an integral part of non-enzymatic antioxidant defense system in humans. The present study was designed to estimate and investigate the role of vitamin A, C and E levels in patients with type 2 diabetes mellitus (T2DM). Methods: The study design involved 200 subjects viz. 100 healthy controls and 100 T2DM cases. Glycosylated hemoglobin (HbA1c) levels were estimated in whole blood sample and serum obtained was analyzed for quantitative estimation of vitamin A, C and E by enzyme linked imunosorbent assay (ELISA). Results: A significant increase (p < 0.005) was observed in the mean HbA1c levels in patients with T2DM as compared to healthy controls. On the contrary, a significant decrease (p < 0.005) was witnessed in the serum vitamin A, vitamin C, and vitamin E. A negative correlation was seen between HbA1c and vitamin A (r = -0.327); HbA1c and vitamin C (r = -0.174); HbA1c and vitamin E (r = -0.226). Conclusion: Reduced levels of serum vitamin A, C and E with poorly controlled HbA1c were observed inT2DM patients. Hence supplementation of these vitamins along with periodic estimation should be done in T2DM for risk prediction in diabetes and to prevent diabetic complications.

To Evaluate The Results Of Complete Exenteration Of Mastoid Air Cell Tracts Underlying Cholesteatoma With Canal Wall Down Mastoidectomy

Chronic Suppurative Otitis Media(CSOM) is long standing infection of mucoperiosteal lining of middle ear cleft. CSOM is classified into Tubotympanic or Safe and Atticoantral or Unsafe type. Atticoantral type involves the pars flaccida and is characterized by formation of a retraction pocket in which keratin accumulates to produce cholesteatoma. Mainstay of the management of atticoantral disease is surgery of mastoid and middle ear. Majority of otolaryngologists find the Canal wall down , open cavity operation with wide access to be the safest and simplest means of managing middle ear cholesteatoma. In present study , results of complete exenteration of mastoid air cell tracts underlying cholesteatoma with canal wall down mastoidectomy are studied.

Highly sensitive LC–MS/MS method to estimate doxepin and its metabolite nordoxepin in human plasma for a bioequivalence study / 药物分析学报

A selective, sensitive and rugged liquid chromatography–tandem mass spectrometry (LC–MS/MS) assay has been developed for the simultaneous determination of doxepin (Dox) and its pharmacologically active metabolite, nordoxepin (NDox) in human plasma. The analytes and their internal standards (IS) were extracted from 500 μL of human plasma by liquid-liquid extraction using methyl tert-butyl ether. Chromatographic separation was achieved on Hypurity C8 column (100 mm × 4.6 mm, 5 μm) using a mixture of acetonitrile-methanol (95:5, v/v) and 2.0 mM ammonium formate in 93:7 (v/v) ratio. Detection was accomplished by tandem mass spectrometry in the positive ionization and multiple reaction monitoring acquisition mode. The protonated precursor to product ion transitions studied for Dox, NDox, and their corresponding ISs, propranolol and desipramine, were m/z 280.1-107.0, 266.0 -107.0, 260.1-116.1 and 267.1-72.1, respectively. A linear dynamic range of 15.0–3900 pg/mL for Dox and 5.00– 1300 pg/mL for NDox was established with mean correlation coefficient (r2) of 0.9991 and 0.9993, respectively. The extraction recovery ranged from 86.6％–90.4％ and 88.0％–99.1％ for Dox and NDox, respectively. The intra-batch and inter-batch precision (％ CV) across quality control levels was ≤ 8.3％ for both the analytes. Stability evaluated under different storage conditions showed no evidence of degradation and the ％ change in stability samples compared to nominal concentration ranged from 4.7％ to 12.3％. The method was successfully applied to a bioequivalence study of 6 mg doxepin hydrochloride orally disintegrating tablet in 41 healthy Indian subjects under fasting and fed conditions.

Determination of asenapine in presence of its inactive metabolites in human plasma by LC-MS/MS / 药物分析学报

A highly selective and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay has been described for the determination of asenapine (ASE) in presence of its inactive metabolites N-desmethyl asenapine (DMA) and asenapine-N-glucuronide (ASG). ASE, and ASE 13C-d3, used as in-ternal standard (IS), were extracted from 300 μL human plasma by a simple and precise liquid-liquid extraction procedure using methyl tert-butyl ether. Baseline separation of ASE from its inactive meta-bolites was achieved on Chromolith Performance RP8e(100 mm × 4.6 mm) column using acetonitrile-5.0 mM ammonium acetate-10% formic acid (90:10:0.1, v/v/v) within 4.5 min. Quantitation of ASE was done on a triple quadrupole mass spectrometer equipped with electrospray ionization in the positive mode. The protonated precursor to product ion transitions monitored for ASE and ASE 13C-d3 were m/z 286.1 → 166.0 and m/z 290.0 → 166.1, respectively. The limit of detection (LOD) and limit of quantitation (LOQ) of the method were 0.0025 ng/mL and 0.050 ng/mL respectively in a linear con-centration range of 0.050–20.0 ng/mL for ASE. The intra-batch and inter-batch precision (% CV) and mean relative recovery across quality control levels were ≤5.8% and 87.3%, respectively. Matrix effect, eval-uated as IS-normalized matrix factor, ranged from 1.03 to 1.05. The stability of ASE under different storage conditions was ascertained in presence of the metabolites. The developed method is much simpler, matrix free, rapid and economical compared to the existing methods. The method was suc-cessfully used for a bioequivalence study of asenapine in healthy Indian subjects for the first time.

Cementoblastoma a Rare Odontogenic Tumor - A Case Report and Differential Diagnosis.

Cementoblastoma is a rare odontogenic tumor derived from the odontogenic mesenchymal tissues. It has distinct clinical, radiographical, and histological features that aid in correct diagnosis. This article presented a case of 35-year-old female patient with pain and swelling in the right cheek region. Radiographic examination was suggestive of benign cementoblastoma in relation to unerupted right maxillary third molar. The tumor was surgically removed along with tooth, and the diagnosis of cementoblastoma was confirmed by histopathology examination.

Gold Nanoparticles synthesis, properties, and forthcoming applications – A review .

Gold nanoparticles (AuNPs) have several biomedical applications in diagnosis and treating of disease such as targeted chemotherapy and in pharmaceutical drug delivery due to their multifunctionality and unique characteristics. AuNPs can be conjugated with ligands, imaging labels, therapeutic drugs and other functional moieties for site specific drug delivery application. In this present review we are discussing the synthesis, properties, and forthcoming applications of gold nanoparticle (AuNPs) which is the most studied among all other metallic-nanoparticles. Here our main focus is to explain the AuNPs application in cancer treatment. AuNPs provides non-toxic carrier system for pharmaceutical drug and gene delivery applications. Currently various anticancer drugs are available but these are cause the necrosis of cancerous cell as well as normal cells. AuNPs cause the necrosis of only cancer cells therefore we can utilize it as a delivery vehicle as well as anticancer agent.

Expression analysis of genes responsible for amino acid biosynthesis in halophilic bacterium Salinibacter ruber.

The degeneracy of the genetic code allows for multiple codons to encode the same amino acid. However, alternative codons and amino acids are used unevenly among genes, a phenomenon termed codon-usage bias. Genes regulating amino acid biosynthesis of Salinibacter ruber, an extremely halophilic bacterium were studied in order to determine the synonymous codon usage patterns. Factors responsible for codon usage variation among the genes were investigated using codon usage indices and multi-variate statistical approach. Overall codon usage data analysis indicated that codons ending in G and/or C were predominant among the genes. Multi-variate statistical analysis showed that there was a single major trend in the codon usage variation among the genes, which had a strong positive correlation (r = 0.93, P<0.01) with (G + C) content of the genes. Further, correlation analysis indicated that genes with higher expression level and showing a greater degree of codon usage bias were GC-rich and preferred codons with C or G nucleotides at the third position. A set of thirteen codons were identified through Chi-square test as optimal codons, which were preferred in highly expressed genes. It could be concluded that mutational bias had a profound effect on codon usage pattern. In addition, translational selections also operated with a proper balance, making the genes translationally more efficient. The frequency of these codons appeared to be correlated with the level of gene expression and might be a useful indicator in the case of genes (or open-reading-frames) whose expression levels are unknown.

Role of suture material and technique of closure in wound outcome following laparotomy for peritonitis.

Background: There are no accepted guidelines for the closure of laparotomy incisions in patients of peritonitis. As these patients differ from the patients undergoing elective abdominal surgery, the same recommendations for closure may not be applicable in both groups. Aim: To compare wound outcome parameters following closure of the laparotomy incision with absorbable and non-absorbable suture material using the continuous and interrupted techniques in patients of peritonitis. Method: A single blinded randomised controlled trial using Polygalactin–910 and Polypropylene, number 1 sutures, to close midline vertical incisions, placed in continuous and interrupted manner, was performed on 174 patients. Patients were randomised into four groups: Group A (Polygalactin-910 continuous suturing, n=40), B (Polygalactin-910 interrupted suturing, n=47), C (Polypropylene continuous suturing, n=45) and D (Polypropylene interrupted suturing, n=42). The incidence of wound infection, dehiscence, suture sinus formation and incisional hernia was recorded. Patients were followed up for a period of four years. Statistical analysis involved the chi-square and Fisher’s exact tests. A ‘p’ value of <0.05 was considered significant. Results: The study included 139 male and 35 female patients between the ages of 10 and 75 years. The incidence of wound infection (p=0.656), dehiscence (p=0.997), and incisional hernia (p=0.930) at 3 months and four years (p= 0.910) was not statistically significant. There was no sinus formation in groups A and B, however 2 patients of group C and 6 patients of group D did develop suture sinus (p=0.003). Conclusion: Suture material and technique of closure does not influence wound outcome in patients of peritonitis except for a significantly lower incidence of sinus formation when non-absorbable sutures are used.

Evaluation of antitussive activity of formulations with herbal extracts in Sulphur Dioxide (SO2) induced cough model in mice.

Cough is the most common symptom of respiratory diseases. When cough becomes serious, opioids are effective, but they have side effects like sedation, constipation, some addiction liability and also compromise the respiratory function. Therefore, there is need to have effective anti-tussive agent which do not have respiratory suppressant activity. The present study was carried out to evaluate anti-tussive activity of combination of herbal drugs as formulations in sulphur dioxide (SO2)-induced cough model in mice. Albino mice of either sex, weighing 25-30 g were divided into eight groups, (n = 6). Group 1 served as normal control, group 2 mice were given distilled water, group 3 was positive control and received codeine sulphate (10 mg/kg, p.o.) and group 4, 5, 6, 7 received coded l formulations 1, 2, 3 and 4 respectively at a dose of 0.3 ml/mice, orally, while group VIII was the vehicle control. Thirty minutes later, the mice were exposed to sulphur dioxide again for 45 sec. The mice were then placed in an observation chamber for counting of cough bouts, by two independent observers, for five minutes. All the formulations used showed significant antitussive activity in sulphur dioxide induced cough model. Thus, these formulations can prove to be useful for alleviating cough.

Candidate genes for drought tolerance and improved productivity in rice (Oryza sativa L.).

Candidate genes are sequenced genes of known biological action involved in the development or physiology of a trait. Twenty-one putative candidate genes were designed after an exhaustive search in the public databases along with an elaborate literature survey for candidate gene products and/or regulatory sequences associated with enhanced drought resistance. The downloaded sequences were then used to design primers considering the flanking sequences as well. Polymerase chain reaction (PCR) performed on 10 diverse cultivars that involved Japonica, Indica and local accessions, revealed 12 polymorphic candidate genes. Seven polymorphic candidate genes were then utilized to genotype 148 individuals of CT9993 x IR62266 doubled haploid (DH) mapping population. The segregation data were tested for deviation from the expected Mendelian ratio (1:1) using a Chi-square test (less than 1%). Based on this, four candidate genes were assessed to be significant and the remaining three, as non-significant. All the significant candidate genes were biased towards CT9993, the female parent in the DH mapping population. Single-marker analysis strongly associated (less than 1%) them to different traits under both well-watered and low-moisture stress conditions. Two candidate genes, EXP15 and EXP13, were found to be associated with root number and silicon content in the stem respectively, under both well-watered and low-moisture stress conditions.