Prevalence of Different Dengue Serotypes in Northern India, 2021-2022: A Tertiary Care Hospital-Based Study.

Dengue fever is a substantial emerging and reemerging arboviral virus in tropical and subtropical areas that seriously threatens public health worldwide. India is experiencing rising dengue epidemics in urban and rural regions linked to all four serotypes. The objective is to examine the serotypes and genotypes of the circulating dengue virus (DENV) at a tertiary care center in eastern Uttar Pradesh, India, from 2020 to 2021.

Fabrication of dual drug-loaded polycaprolactone-gelatin composite nanofibers for full thickness diabetic wound healing.

Design of moxifloxacin and ornidazole co-loaded polycaprolactone and gelatin nanofiber dressing for diabetic wounds. The composite nanofibers were prepared using electrospinning technique and characterized for drug release, antibacterial activity, laser doppler and wound healing. The optimized nanofiber demonstrated an interconnected bead free nanofiber with average diameter <200 nm.

Scrub typhus: A rare cause of secondary nephrotic syndrome.

Scrub typhus is an important etiological agent in acute febrile illness in the post-monsoon season in tropical countries. It leads to dreaded complications if left untreated. Acute kidney injury is one such complication.

Vitality of Proteinase K in rRTPCR Detection of SARS-CoV2 Bypassing RNA Extraction.

This study aimed to detect the SARS-COV2 viral component directly from inoculated VTM without RNA extraction. Inoculated VTMs of already tested 50 positive and 50 negative samples were divided into three groups. Group I was treated with Proteinase K (PK) followed by 3-step-heat treatment at different temperatures (25°C, 60°C, and 98°C) and stored at 4°C.

Assessment of Successful qRT-PCR of SARS-CoV-2 Assay in Pool Screening Using Isopropyl Alcohol Purification Step in RNA Extraction.

The study is aimed at establishing the optimal parameters for RNA purification of pooled specimens, in SARS-CoV-2 assay. This research work evaluates the difference of extracted RNA purity of pooled samples with and without treatment with isopropyl alcohol and its effect on real-time RT-PCR. As per the protocol of the Indian Council of Medical Research (ICMR), 5 sample pools were analysed using qRT-PCR.

Galactose-Clicked Curcumin-Mediated Reversal of Meropenem Resistance among by Targeting Its Carbapenemases and the AcrAB-TolC Efflux System.

In over eighty years, despite successive antibiotics discoveries, the rapid advent of multidrug resistance among bacterial pathogens has jolted our misapprehension of success over them. Resistance is spreading faster than the discovery of new antibiotics/antimicrobials. Therefore, the search for better antimicrobials/additives becomes prudent.

Multiplex nested polymerase chain reaction targeting multiple genes for the detection of and in genitourinary specimens.

Objectives: The objective of this study was to design and evaluate a novel multiplex nested polymerase chain reaction (PCR) protocol for simultaneous detection of and in genitourinary specimens obtained from symptomatic patients clinically suspected of sexually transmitted infections (STIs), targeting two different genes each for these pathogens.

Materials And Methods: A total of 116 genitourinary specimens were collected from men ( = 12) and women ( = 104). Direct microscopy, culture isolation, and antimicrobial susceptibility testing for were performed.

MoS-Modified Curcumin Nanostructures: The Novel Theranostic Hybrid Having Potent Antibacterial and Antibiofilm Activities against Multidrug-Resistant Hypervirulent .

The recent emergence of hypervirulent clinical variants of (hvKP) causing community-acquired, invasive, metastatic, life-threatening infections of lungs, pleura, prostate, bones, joints, kidneys, spleen, muscles, soft-tissues, skin, eyes, central nervous system (CNS) including extrahepatic abscesses, and primary bacteremia even in healthy individuals has posed stern challenges before the existing treatment modalities. There is therefore an urgent need to look for specific and effective therapeutic alternatives against the said bacterial infection or recurrence. A new type of MoS-modified curcumin nanostructure has been developed and evaluated as a potential alternative for the treatment of multidrug-resistant isolates.

Classification of Clinical Isolates of Based on Their Biofilm Forming Capabilities and Elucidation of the Biofilm Matrix Chemistry With Special Reference to the Protein Content.

is a human pathogen, capable of forming biofilms on abiotic and biotic surfaces. The limitations of the therapeutic options against is actually due to its innate capabilities to form biofilm and harboring determinants of multidrug resistance. We utilized a newer approach for classification of biofilm producing isolates and subsequently we evaluated the chemistry of its slime, more accurately its biofilm.

Correction: Quantum curcumin mediated inhibition of gingipains and mixed-biofilm of causing chronic periodontitis.

[This corrects the article DOI: 10.1039/C8RA08435A.].

Quantum curcumin mediated inhibition of gingipains and mixed-biofilm of causing chronic periodontitis.

Periodontitis is a biofilm-associated irreversible inflammation of the periodontal tissues. Reports suggest the role of specific Arg- and Lys-specific proteinases in the orchestration of the initiation and progression of periodontal diseases. These proteinases are precisely termed as gingipains R and K.

Development, optimization and evaluation of curcumin loaded biodegradable crosslinked gelatin film for the effective treatment of periodontitis.

Objective: Aim of the present study was to prepare curcumin (CUR) loaded biodegradable crosslinked gelatin (GE) film to alleviate the existing shortcomings in the treatment of periodontitis.

Significance: Gelatin film was optimized to provide anticipated mucoadhesive strength, mechanical properties, folding endurance, and prolonged drug release over treatment duration, for successful application in the periodontitis.

Methods: The film was developed by using solvent casting technique and "Design of Experiments" approach was employed for evaluating the influence of independent variables on dependent response variables.

Hidden burden of chikungunya in North India; A prospective study in a tertiary care centre.

Background: Arboviral diseases, such as chikungunya, dengue and now zika represent a public health problem, especially in tropical countries. Epidemiology of chikungunya and dengue is well known, including its social and climatic factors associated, but only few data and reports of chikungunya are available from North India. The clinical differentiation of chikungunya from dengue is no doubt challenging since both diseases can share clinical signs and symptoms leading to potential misdiagnosis of chikungunya in areas where dengue is endemic.

Standardization and Classification of Biofilm Formation by Clinical Isolates of .

Background: is Gram-positive bacterium commonly associated with nosocomial infections. The development of biofilm exhibiting drug resistance especially in foreign body associated infections has enabled the bacterium to draw considerable attention. However, till date, consensus guidelines for biofilm quantitation and categorization criterion for the bacterial isolates based on biofilm-forming capacity are lacking.

Curcumin Quantum Dots Mediated Degradation of Bacterial Biofilms.

Bacterial biofilm has been reported to be associated with more than 80% of bacterial infections. Curcumin, a hydrophobic polyphenol compound, has anti-quorum sensing activity apart from having antimicrobial action. However, its use is limited by its poor aqueous solubility and rapid degradation.

Assessing genetic diversity of Mycobacterium tuberculosis by spoligotyping and IS6110-based restriction fragment length polymorphism in North India.

Objective/background: Molecular epidemiology methods are very useful for differentiating between strains, assessing their diversity, and measuring the prevalence of the most circulating strain in an area. Various molecular typing methods using different molecular markers have been utilized worldwide, such as restriction fragment length polymorphism (RFLP), spoligotyping, Mycobacterial Interspersed Repetitive Unit - Variable Number of Tandem Repeat (MIRU-VNTR), and Double repetitive element-PCR (DRE-PCR) typing, for simultaneous detection and epidemiologic typing of Mycobacterium tuberculosis. The present study is conducted to assess the genetic diversity of M.

Performance of nested multiplex PCR assay targeting MTP40 and IS6110 gene sequences for the diagnosis of tubercular lymphadenitis.

The conventional methods for diagnosis of tubercular lymphadenitis (TBLN) such as - fine needle aspiration cytology, Ziehl-Neelsen staining and culture have limitations of low sensitivity and/or specificity. So, it becomes essential to develop a rapid, sensitive, and specific method for an early diagnosis of TBLN. Therefore, the present study was conducted to evaluate nested multiplex polymerase chain reaction (nMPCR) targeting MTP40 and IS6110 gene sequences of Mycobacterium tuberculosis and Mycobacterium tuberculosis complex, respectively in 48 successive patients of TBLN and 20 random patients with non-tubercular lymph node lesions.

PCR and Genotyping for HPV in Cervical Cancer Patients.

Aims: To devise nested multiplex polymerase chain reaction (NMPCR) protocol for detection of mucosal human papilloma viruses (HPVs) and typing of HPV-16 and -18 in formalin-fixed, paraffin-embedded (FFPE) tissues of carcinoma cervix (CaCx).

Settings And Design: Cross-sectional observational study.

Materials And Methods: NMPCR was done for simultaneous detection of HPV, targeting 134 bp L1 capsid gene employing GP+/mGP+ primers and typing of genotypes-16 and -18, targeting E6/E7 gene from 34 FFPE tissue blocks of CaCx and cervical intraepithelial neoplasia (CIN).

Differentiation of Mycobacterium tuberculosis complex from non-tubercular mycobacteria by nested multiplex PCR targeting IS6110, MTP40 and 32kD alpha antigen encoding gene fragments.

Background: Control of the global burden of tuberculosis is obstructed due to lack of simple, rapid and cost effective diagnostic techniques that can be used in resource poor-settings. To facilitate the early diagnosis of TB directly from clinical specimens, we have standardized and validated the use of nested multiplex PCR, targeting gene fragments IS6110, MTP40 and 32kD α-antigen encoding genes specific for Mycobacterium tuberculosis complex and non-tubercular mycobacteria (NTM), in comparison to smear microscopy, solid culture and single step multiplex PCR. The results were evaluated in comparison to a composite reference standard (CRS) comprising of microbiological results (smear and culture), clinical, radiological and cytopathological findings, clinical treatment and response to anti-tubercular therapy.

Possible Role of Curcumin as an Efflux Pump Inhibitor in Multi Drug Resistant Clinical Isolates of Pseudomonas aeruginosa.

Introduction: Multidrug resistant non-fermenters are continuously increasing in hospital and ICU settings. One of the mechanisms of developing drug resistance is possession of efflux pump through which bacteria extrude antimicrobial agents and other toxic substances. If these efflux channels are blocked or inhibited, increased drug concentration can be achieved in a bacterial cell with optimal drug dose.

Nested Multiplex (NMPCR) Detection of Human Papillomavirus (HPV) 16 and 18 in Pre-invasive Lesions and its Implication in Screening of Carcinoma Cervix (CaCx).

Introduction: Carcinoma cervix (CaCx) is a preventable disease and is caused by certain high risk Papillomaviruses. In the present study, our aim was to investigate the utility of Nested Multiplex Polymerase Chain Reaction (NMPCR) in detecting Human Papillomavirus (HPV) 16 and 18 in cervical scrapes/biopsy samples and to correlate with cervical cytology/ histopathology findings.

Methods: A total of 119 females were subjected for Papanicolaou smear examination of cervical scrapes and/or histopathological examination of cervical tissues.

Immunohistochemical Detection of p16(INK4a) in Leukoplakia and Oral Squamous Cell Carcinoma.

Introduction: Over-expression of p16(INK4a) has been reported in tissues of oral squamous cell carcinoma (SCC) associated with Human Papillomaviruses (HPVs). Immunohistochemical (IHC) detection of p16(INK4a) is an easy technique than molecular detection of HPVs, hence we investigated the presence of this protein in the most common pre-malignant and malignant oral lesions i.e.

Rapid genotypic detection of rpoB and katG gene mutations in Mycobacterium tuberculosis clinical isolates from Northern India as determined by MAS-PCR.

Background: There is a growing need to develop rapid laboratory research methods to counter the menace of drug resistant tuberculosis (MDR-TB) cases worldwide especially in developing countries. The present study was undertaken to investigate the type and frequency of rpoB and katG mutations in rifampicin (RIF) and isoniazid (INH) resistant strains respectively of Mycobacterium tuberculosis (MTB) circulating in Northern India and to explore the utility of multiplex-allele-specific (MAS)-PCR assay for detection of drug-resistant MTB isolates in low resource set up.

Methods: Phenotypic and genotypic drug susceptibility testing (DST) was performed on 354 MTB isolates.