Methanolic Extraction, Formulation and Evaluation of Herbal Transdermal Patches of Azadirachta indica A. Juss

At present, synthetic drugs form a major line of treatment in the management of many diseases and currently available as transdermal patches. Traditional medicine system is centuries old practice and again gaining importance. Hence, herbal products can be used to treat many diseases as transdermal patches. Neem leaves has antibacterial properties and can be used for controlling air borne bacterial contamination. Azadirachta Indica. A. Juss (neem) very useful traditional plant. The present study was carried out to extract, formulate and evaluate a transdermal patches containing Azadirachta indica A. Juss The total four Transdermal patches were prepared by solvent casting method and evaluated for physicochemical characteristics such as weight variation, thickness, drug content uniformity, folding endurance, In-vitro diffusion, ex-vivo permeation studies and anti-Bacterial screening test. The infrared spectroscopy showed that there was no incompatibility between drug and polymer. The In-vitro diffusion studies of Transdermal patches of Neem showed percentage of drug release from 65.2% to 92.06% at the end of 21hrs. The ex-vivo permeation study was carried out for optimized formulation (M2) using goat abdomen skin as barrier and showed percentage drug release 89.6% at the end of 21hrs. Release kinetics data showed that all the formulations followed zero order kinetics with non-Fickian diffusion mechanism. The anti-bacterial screening study showed good anti-bacterial activity against Bascillus subtilis and Pseudomonas aeruginosa and zone of Inhibition (ZOI) was compared against standard antibiotic drugs i.e. Penicillin and Streptomycin.

Bacterial Screening of Blood Components: Past, Present and Possibly Future Methodologies for Improving Transfusion Safetys

Major developments have been made in the past two decades to ensure that products are free from viral pathogens. Such improvements were achieved, mainly by the introduction of advanced screening methodologies such as Nucleic Acid Testing. Even though this has vastly improved transfusion safety, bacterial contamination remains a persistent threat. To mitigate this, improved donor arm disinfection, blood diversion pouches and proactive screening of blood components have been implemented by transfusion services all over the globe with great success. This review will focus on how current bacterial screening methodologies have improved over the years and how newer developments within this sector may further reduce the undesired possibility of transfusing contaminated blood products.

Synthesis And Antibacterial Activities Of Benzothiazole Derivatives Of Sulphonamides

This study aims to synthesize hybrid compounds “via” the coupling of sulphonamide and benzothiazole into one structure that may have improved antibacterial property. The N-(biphenyl-4-yl) thiourea (1) used for the synthesis of the targeted sulphonamides was obtained by reacting diphenylamine and ammonium thiocyanate at room temperature. Cyclization of N-(biphenyl-4-yl)thiourea gave 2-amino-6-phenylbenzothiazole (2) which reacted with benzenesulphonyl chloride and para-toulene sulphonyl chloride to give the targeted sulphonamides (3a & 3b). The synthesized compounds were characterised using melting point, infra-red spectroscopy, nuclear magnetic resonance and elemental analysis. Anti-bacterial screening of the synthesised compounds indicated that all the compounds showed anti-bacterial properties, except 2-amino-6-phenylbenzothiazole that did not show any activity on Escherichia coli.

Wettability, Thermal Stability, and Antibacterial Properties of Polycaprolactone /ZnO Nanocomposites in Packaging

Polycaprolactone is one of the natural biodegradable polymers mainly used in bioplastics production for packaging, usually composed of non-toxic compounds and biodegradable. The aim was to examine the role of zinc oxide (ZnO) nanopowder on the,wettability , thermal and anti-bacterial effect nanocomposites. Pure PCL and PCL-based bio- nanocomposites doped with various ratios of ZnO nanoparticles from 0% to 5wt% were prepared through the arrangement of throwing procedure. The results show that wettability properties in relation to ideal PCL and that they were increasingly hydrophobic from 57º.8 to 69º.53 because add ZnO nanocomposites,the thermal stability between 300 and 400 ° C makes them perfect for the application of food packaging application. Also, anti-bacterial screening against Gram-positive and Gram-negative microorganisms, which was highly variable and evident in comrades, was compared with PCL.

Frequency of retrotransposon human endogenous retrovirus-K113 and a preliminary analysis of some microbial clues in bipolar disorder

Aim: The aim of our study was to investigate whether the retrotransposon human endogenous retrovirus (HERV)-K113 could be related with bipolar disorder or not. As a second and a preliminary aim, we also conducted bacterial screening in whole blood in a limited number of samples. Patients & methods: Three separate PCR reactions including the preintegration sites and sites within the viral sequences were performed for HERV-K113 detection. Bacterial screening was performed with SSCP/sequencing analysis. Results & conclusion: No difference was observed in terms of the frequency of retrotransposon HERV-K113 in Turkish bipolar disorder patients and healthy controls. SSCP/sequencing and alignment analysis for bacterial screening reflected the possible presence of different bacteria. We strongly recommend the broadened retrotransposon and microbial diversity analyses in bipolar disorder for future studies.

Optimized broad-range real-time PCR-based method for bacterial screening of platelet concentrates

Bacterial contamination of blood components remains a major challenge in transfusion medicine, particularly, platelet concentrates (PCs) due to the storage conditions that support bacterial proliferation. In this study, we develop a rapid, sensitive and specific real-time PCR protocol for bacterial screening of PCs. An internally controlled real-time PCR-based method was optimized and validated with our proprietary 16S Universal PCR Master Mix (IBMP/Fiocruz), which targets a conserved region of the bacterial 16S rRNA gene. Nonspecific background DNA was completely eliminated by treating the PCR Master Mix with ethidium monoazide (EMA). A lower limit of detection was observed for 10 genome equivalents with an observed Ct value of 34±1.07 in calibration curve generated with 10-fold serial dilutions of E. coli DNA. The turnaround time for processing, including microbial DNA purification, was approximately 4 hours. The developed method showed a high sensitivity with no non-specific amplification and a lower time-to-detection than traditional microbiological methods, demonstrating it to be an efficient means of screening pre-transfusion PCs.

Results of treatment of patients with endometrial polyps using a differentiated approach

The problem of treatment of endometrial polyps remains relevant, because it has high risks of malignancy and a steady tendency to increase the frequency of relapses and is inherent from 26 to 78% in women of different age categories. The objective: is to reduce the frequency of relapses of endometrial polyps by introducing a differentiated treatment strategy for patients with endometrial polyps based on the study of new pathogenesis links. Materials and methods. Clinical and laboratory examinations and treatment of 66 women diagnosed with endometrial polyp at the age of 24–43 years were carried out, which were further divided into two statistically equivalent groups: A (n=34) and B (n=32). All women received treatment according to the 4-stage algorithm of the current order of the Ministry of health of Ukraine No. 676 dated 31.12.2004. The difference in the management of group A patients was that their treatment was supplemented by immunomodulate therapy. At the first stage of the study, additional hysteroresectoscopy was performed, endometrial samples were obtained to determine its type of pathology, develop an immunohistochemical profile of the endometrium with the establishment of a receptor phenotype, identify the inflammatory process, and determine the state of the apoptosis system and the APUD system of the endometrium. Results. Active histological screening of the endometrial condition showed that signs of chronic endometritis (positive reaction of CD-138 and CD-68 markers) in women with endometrial polyp with physiological background endometrium were observed in 26.5% of group A patients after 3 months of treatment, which required a repeat course of treatment based on the results of viral and bacteriological examination. In group B, this rate was 46.9%. All the examined women, against the background of the use of gestagens, showed changes in the endometrial receptor phenotype, which were manifested by a decrease in the number of progesterone receptors in the glandular epithelium by an average of 1.4 times. However, the expression levels of Bcl-2 protein and EC cells had no statistical differences, since there were no signs of proliferation in the background endometrium, including local ones. Viral-bacterial screening of the study showed a sharp decrease in the number of pathogens in the endometrium, but in studies of patients of both groups, viral-bacterial associations were determined. Bacterial screening revealed the presence of anaerobic microflora. The study of the level of tumor necrosis factor in flushes from the uterine cavity indicated a unidirectional trend with the dynamics of the CD-138 index. The results of treatment of patients with endometrial polyp with physiological endometrium showed that the full effect of treatment in group A (antibacterial therapy with gestagens + immunomodulatory therapy) was determined after a year in 85.2% of patients, 14.8% of women had a relapse of endometrial polyp, in the group where patients received only antibacterial therapy with gestagens – a relapse was diagnosed in 37.5% of patients. Conclusion. Determining the tactics of differentiated treatment of endometrial polyps, it is necessary to take into account the results of immunohistochemical research and viral-bacterial control of the endometrial condition, which allows improving the results of treatment of endometrial polyps from 62.5% to 85.2 %, and is a prevention of relapse of endometrial polyp. Key words: endometrial polyps, hysteroscopy, endometrial immunohistochemical examination, apoptosis system, endometrial APUD system, viral-bacterial screening.