Publications by authors named "Geeta Sharma"

Background: Anaplastic Large Cell Lymphoma (ALCL) is a rare and aggressive T-cell lymphoma, classified into ALK-positive and ALK-negative subtypes, based on the presence of chromosomal translocations involving the ALK gene. The current standard of treatment for ALCL is polychemotherapy, with a high overall survival rate. However, a subset of patients does not respond to or develops resistance to these therapies, posing a serious challenge for clinicians.

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  • - A rare case of a vein of Galen aneurysmal malformation (VGAM) was diagnosed in a fetus during a monochorionic-diamniotic twin pregnancy at 28 weeks using color Doppler ultrasonography.
  • - The affected fetus showed severe heart issues and was delivered at 32 weeks due to abnormal heart rates, but brain imaging after birth revealed serious neurological damage, leading to no postnatal treatment.
  • - This case is notable as it is the first documented instance of prenatal VGAM diagnosis in such a twin pregnancy, highlighting the complexities involved in deciding when to deliver.
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Background: There are still certain gaps in the research that need to be filled despite the fact that numerous studies have looked into the transformation of odontogenic cysts into neoplastic lesions. To identify pertinent research that had been published and to synthesise the available data and provide an overview of the current body of knowledge, this review also sought to do so.

Materials And Methods: Adopting the Preferred Reporting Items of Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a search strategy was implemented across several online databases to search for relevant articles as per the defined selection criterion.

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The paper describes an investigation of phase decomposition of apatite lattice doped with rare earth ions (cerium, samarium, and holmium) at temperatures ranging from 25-1200 °C. The rare-earth ion-doped apatite minerals were synthesized using the sol-gel method. In situ high-temperature powder X-ray diffraction (XRD) was used to observe the phase changes and the lattice parameters were analyzed to ascertain the crystallographic transformations.

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  • There's a growing focus on ethnic dermatology as skin of color populations increase worldwide, facing challenges like hyperpigmentation disorders that are hard to treat with standard therapies.
  • Recent research highlights the development of laser technologies aimed at different types of hyperpigmentation, emphasizing the importance of understanding these advancements for effective treatment.
  • A study with 122 Indian patients showed that specific laser combinations led to significant improvement in pigmentation issues, demonstrating the potential effectiveness of these technologies in various skin types, particularly darker Fitzpatrick categories.
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Microsatellite-unstable (MSI) cancers require WRN helicase to resolve replication stress due to expanded DNA (TA)n dinucleotide repeats. WRN is a promising synthetic lethal target for MSI tumors, and WRN inhibitors are in development. In this study, we used CRISPR-Cas9 base editing to map WRN residues critical for MSI cells, validating the helicase domain as the primary drug target.

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ALK and ROS1 fusions are effectively targeted by tyrosine kinase inhibitors (TKIs), however patients inevitably relapse after an initial response, often due to kinase domain mutations. We investigated circulating DNA from TKI-relapsed NSCLC patients by deep-sequencing. New EML4::ALK substitutions, L1198R, C1237Y and L1196P, were identified in the plasma of NSCLC ALK patients and characterized in a Ba/F3 cell model.

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Introduction: Mucormycosis is an acute and rapidly progressing opportunistic fungal infection. COVID-19-associated mucormycosis (CAM) had re-emerged as a complication of COVID-19 infection during the second wave of the pandemic in 2021. The rhinomaxillary form is a variant of the rhino-cerebral mucormycosis that presents a diagnostic challenge to the dentist and the oral and maxillofacial pathologist.

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We studied the caring, parenting, and support services for children with special needs in Ghana. Many of the study participants reported re-adjusting their lives in virtually every domain-social, economic, and emotional to deal with and manage the new realities. How parents navigate this space varied considerably from setting to setting.

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The nine Blume populations studied from Pir Panjal contained 20 chromosomes. This count is not reported so far in Indian populations. Currently, comparison of tapetal and meiotic cells revealed the existence of synchrony in different developmental phases.

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Spatial epidemiology is the description and analysis of geographic patterns and variations in disease risk factors, morbidity and mortality with respect to their distributions associated with demographic, socioeconomic, environmental, health behavior, and genetic risk factors, and time-varying changes. In the Letter to Editor, we had a brief description of the practice for the mortality and the space-time patterns of John Snow's map of cholera epidemic in London, United Kingdom in 1854. This map is one of the earliest public heath practices of developing and applying spatial epidemiology.

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Background & Aims: Early-onset colorectal cancer (EOCRC) is a distinct clinical and molecular entity with poor survival outcomes compared with late-onset CRC. Although the incidence of EOCRC is rising, current CRC screening strategies have several limitations in diagnostic performance for EOCRC. In view of this clinical challenge, novel and robust biomarkers for detection of EOCRC are necessary.

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  • The study focuses on the increasing incidence of pancreatic ductal adenocarcinoma (PDAC), emphasizing the need for better early detection methods beyond the commonly used CA19-9 biomarker, which lacks sufficient sensitivity and specificity.
  • Researchers conducted a genomewide profiling of blood samples to identify exosomal microRNAs (miRNAs) as potential noninvasive biomarkers for early PDAC detection.
  • A total of 13 robust miRNA markers were identified that accurately distinguish PDAC patients from controls, particularly successful in detecting early-stage cases and improve diagnostic accuracy when combined with CA19-9 levels.
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is an important medicinal and aromatic perennial herb that exhibits wide distribution range from sub-tropical to temperate regions. In the present study, agro-morphological traits and genetic differences in 19 different populations of were studied to evaluate the level and extent of its diversity. Analysis of variance (ANOVA) showed that the different phenotypic characters show considerable differences among various populations and was significant at p < 0.

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In the last few decades, ultrasound assisted methods have emerged as environmentally friendly and cost-effective technologies for chemical synthesis. It provides higher yields under mild reaction conditions compared to traditional methods. Methyl ammonium lead iodide and zinc oxide have gained importance in academic as well as industrial research due to their unique optoelectronic properties.

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Cancer cells are characterized by high genetic instability, that favors tumor relapse. The identification of the genetic causes of relapse can direct next-line therapeutic choices. As tumor tissue rebiopsy at disease progression is not always feasible, noninvasive alternative methods are being explored.

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Anaplastic lymphoma kinase-positive (ALK+) anaplastic large-cell lymphoma (ALCL) is a subtype of non-Hodgkin lymphoma characterized by expression of the oncogenic NPM/ALK fusion protein. When resistant or relapsed to front-line chemotherapy, ALK+ ALCL prognosis is very poor. In these patients, the ALK inhibitor crizotinib achieves high response rates, however 30-40% of them develop further resistance to crizotinib monotherapy, indicating that new therapeutic approaches are needed in this population.

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Background: Potentially malignant disorders are highly prevalent in India. In this study, we assessed C-reactive protein (CRP) levels in patients with oral submucous fibrosis (OSMF) and oral squamous cell carcinoma (OSCC).

Methodology: Sixty-four patients (OSMF and OSCC) were undertaken and were classified into 3 groups, OSMF patients (Group I, 34), OSCC (Group II, 30), and healthy controls (Group III, 26).

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  • - The study investigates podoplanin expression in tumor cells and lymphatic vessels in oral squamous cell carcinoma (OSCC) to understand its role in tumor behavior and metastatic potential.
  • - Using the D2-40 antibody, researchers examined 45 OSCC cases for lymphatic microvascular density (LMVD) and found varied patterns of D2-40 expression, with an increase noted in less differentiated tumors, although the differences were not statistically significant.
  • - The findings suggest that analyzing podoplanin and lymphatic features could aid in improving adjuvant therapies for OSCC by linking them to tumor histopathology and lymph node status.
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Inhibitors of programmed cell death protein 1 (PD-1) and its ligand (PD-L1) have dramatically changed the treatment landscape for patients with cancer. Clinical activity of anti-PD-(L)1 antibodies has resulted in increased median overall survival and durable responses in patients across selected tumor types. To date, 6 PD-1 and PD-L1, here collectively referred to as PD-(L)1, pathway inhibitors are approved by the US Food and Drug Administration for clinical use.

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Scoliosis screening is important for timely initiation of brace treatment to mitigate curve progression in skeletally immature children and adolescents. School scoliosis screening programs in Hong Kong follow the protocol of referring children screened positive with a scoliometer and Moiré topography for confirmatory standard radiography. Despite being highly sensitive (88%) in detecting those who require specialist referral, the screening program was found to have a false-positive rate >50%, which could lead to unnecessary X-ray radiation.

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The high degree of morbidity and mortality in colorectal cancer (CRC) patients is largely due to the development of chemoresistance against conventional chemotherapeutic drugs. In view of the accumulating evidence that various dietary botanicals offer a safe, inexpensive and multi-targeted treatment option, herein, we hypothesized that a combination of Andrographis paniculata and Oligomeric Proanthocyanidins (OPCs) might interact together with regard to anti-tumorigenic activity in CRC. As a result, we demonstrated the enhanced anti-cancer activity between these two botanical extracts in terms of their ability to inhibit cancer cell growth, suppress colony formation and induce apoptosis.

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DNA 5-hydroxymethylcytosine (5hmC) modification is known to be associated with gene transcription and frequently used as a mark to investigate dynamic DNA methylation conversion during mammalian development and in human diseases. However, the lack of genome-wide 5hmC profiles in different human tissue types impedes drawing generalized conclusions about how 5hmC is implicated in transcription activity and tissue specificity. To meet this need, we describe the development of a 5hmC tissue map by characterizing the genomic distributions of 5hmC in 19 human tissues derived from ten organ systems.

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