Publications by authors named "Rao U"

Background And Aim: The usefulness of carcinoembryonic antigen (CEA) in the diagnosis and prognosis of colorectal cancer (CRC) is unclear. The aim was to analyze changes in the expression of CEA during CRC progression and metastasis, so as to determine the influence of tumor metastatic organ on the CEA expression by CRC cells.

Methods: The human biopsies of adenocarcinomas in colon and CRC liver and lung metastases were analyzed by immunohistochemistry for the expression of CEA.

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Article Synopsis
  • * Researchers developed a real-time TaqMan PCR technique to measure and compare the viral fitness of engineered HIV-1 chimeric viruses with different genetic modifications.
  • * They specifically quantified the impact of eight amino acid changes in key regions of the virus (HIV-1 Gag and Env) by comparing the growth rates of mutant and native viral forms in cell cultures.
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Objectives: The study objectives were to determine whether massage therapy reduces symptoms of depression in subjects with human immunodeficiency virus (HIV) disease.

Design: Subjects were randomized non-blinded into one of three parallel groups to receive Swedish massage or to one of two control groups, touch or no intervention for eight weeks.

Settings/location: The study was conducted at the Department of Psychiatry and Behavioral Neurosciences at Cedars-Sinai Medical Center in Los Angeles, California, which provided primary clinical care in an institutional setting.

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Osteosarcomas rarely occur in older adults. Proteomics has not been reported to date in osteosarcoma occurring in the older adult population. This proteomic investigation was conducted to identify differentially expressed proteins in osteosarcoma occurring in various backgrounds from older adults.

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Background: Fibre-optic bronchoscopy with bronchoalveolar lavage (BAL) is a safe procedure and is associated with low morbidity and mortality in immunocompromised children. Although many studies have highlighted the advantages of positive BAL results in the diagnosis of pulmonary infections, there have been few reports examining the impact of a negative BAL result on clinical management in immunocompromised children on empiric broad-spectrum antimicrobial therapy.

Aim: The aim of this study was to evaluate BAL in the diagnosis of pulmonary infections in children with haematological malignancies who develop pneumonia unresponsive to empiric antimicrobial therapy, and also to determine whether a negative BAL result contributed to the clinical management of these patients.

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Aim: To assess p53 and Cyclin D1 expression using Immunohistochemistry in normal mucosa and oral squamous cell carcinoma.

Materials And Methods: Twenty cases of Oral squamous cell carcinoma (OSCC) and 10 normal mucosa were used and the primary antibodies used were p53 (DAKO-DO7) and Cyclin D1 Mouse Anti human Cyclin D1 (DCS-6) 1: 100 dilution.

Statistical Analysis: Labelling index was calculated and mean LI and SD were calculated, using Descriptive Statistics and t-test was used to compare mean LI between antibodies used in OSCC.

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Little is known about the maintenance of intestinal stem cells (ISCs) and progenitors during immune-mediated tissue damage or about the susceptibility of transplant recipients to tissue damage mediated by the donor immune system during graft versus host disease (GVHD). We demonstrate here that deficiency of recipient-derived IL-22 increased acute GVHD tissue damage and mortality, that ISCs were eliminated during GVHD, and that ISCs as well as their downstream progenitors expressed the IL-22 receptor. Intestinal IL-22 was produced after bone marrow transplant by IL-23-responsive innate lymphoid cells (ILCs) from the transplant recipients, and intestinal IL-22 increased in response to pretransplant conditioning.

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Background: Alterations of hypothalamic-pituitary-adrenal (HPA) function are well-established in adults with current depression. HPA alterations may persist into remission and confer increased risk for recurrence.

Methods: A modified version of the Trier Social Stress Test (TSST) was administered at baseline to 32 young adults with remitted major depressive disorder and 36 never-depressed controls.

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Childhood maltreatment has been known to produce long-lasting impairments in behavioral, cognitive and social functioning, but their underlying mechanisms are not well-understood. A better understanding of their underlying mechanisms will aid in developing effective preventive interventions. Nineteen adolescent volunteers with no personal history of a psychiatric illness, but who were exposed to maltreatment during childhood, and 13 adolescent volunteers with no personal or family history of a psychiatric disorder (controls) underwent diffusion tensor imaging (DTI) studies.

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Background: Tobacco use is reported to be rampant in urban slums in developing countries. Demographical variations in tobacco use between males living in urban slums vs those living in non-slum areas in India has not been reported, and this study was undertaken to address this issue.

Materials And Methods: Secondary data analysis of National Family Health Survey-3 (NFHS-3) was undertaken to study demographical variations in tobacco use between urban slum dwellers and non-slum dwellers in eight Indian cities.

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The cereal cyst nematode, Heterodera avenae (Wollenweber, 1924) is one of the most important plant parasitic nematodes of cereals. It is an obligate sedentary endo parasite causing considerable crop losses in wheat, barley and oats worldwide. FMRFamide-like peptides (FLPs) play critical role as neurotransmitters or neuromodulators in the nervous system and proposed as one of the important targets for the plant parasitic nematode management.

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The study compared depressive and associated psychopathological symptoms in 17 African-American, 19 Asian-American, 22 Mexican-American and 41 Non-Hispanic White patients with unipolar major depressive disorder. Overall, severity of depression was comparable among the groups both on clinician-rated and subject-rated measures. However, ethnic-minority groups were more likely to experience diurnal variation of mood, with worsening in the evening.

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This article discusses recent findings on the neurobiology of pediatric depression as well as the interplay between genetic and environmental factors in determining the risk for the disorder. Utilizing data from both animal and human studies, the authors focus on the evolving understanding of the developmental neurobiology of emotional regulation, cognitive function and social behavior as it applies to the risk and clinical course of depression. Treatment implications and directions for future research are also discussed.

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Background: Major depressive disorder (MDD) frequently begins during adolescence and is associated with significant morbidity and mortality. However, little is known about the neurobiology of adolescent depression. A better understanding of the neurobiology will be helpful in developing more effective preventive and treatment interventions for this highly disabling illness.

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Oral melanoma (OM) is a rare, malignant neoplasm of melanocytic origin. It accounts for 0.2 - 8% of all melanomas.

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Oral lichen planus (OLP) is a chronic inflammatory disease that affects the mucus membrane of the oral cavity. It is a T-cell mediated autoimmune disease in which the cytotoxic CD8+ T cells trigger apoptosis of the basal cells of the oral epithelium. Several antigen-specific and nonspecific inflammatory mechanisms have been put forward to explain the accumulation and homing of CD8+ T cells subepithelially and the subsequent keratinocyte apoptosis.

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Septins belong to the GTPase superclass of conserved proteins and have been identified to play a role in diverse aspects of cell biology, from cytokinesis to the maintenance of cellular morphology. At least 14 septins have been identified in humans. With their complex patterns in gene expressions and interaction, it has been reported that alterations in septin expression are observed in human diseases.

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Aims:   The aims of the present study were to determine the protein levels and cellular distribution of the endoribonucleases Drosha, Dicer and Ago2, major components of the microRNA-processing machinery, in benign and malignant soft tissue smooth muscle tumours, and to correlate the cellular levels of these enzymes with clinicopathological parameters including tumour histopathological grade.

Methods And Results:   Cellular levels of Drosha, Dicer and Ago2 were evaluated in 110 soft tissue leiomyosarcomas (LMS), 31 leiomyomas (LM) and normal smooth muscle (NSM) using immunohistochemistry. Drosha and Dicer were barely detectable in NSM, while augmented levels of these enzymes were observed in LM and LMS.

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Background: The mortality of patients with Guillain Barré syndrome (GBS) has varied widely with rates between 1-18%. Death results from pneumonia, sepsis, adult respiratory distress syndrome (ARDS) and less frequently due to autonomic dysfunction or pulmonary embolism. There are only few studies which have used a large sample and have in detail analyzed the circumstances relating to death and the prognostic factors for the same in a cohort, including only mechanically ventilated patients.

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Depressive illness beginning early in life can have serious developmental and functional consequences. Therefore, understanding its etiology and pathophysiology during this developmental stage is critical for developing effective prevention and intervention strategies. There is considerable evidence of sleep alterations in adult major depressive disorder.

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