Publications by authors named "Barbara P Mello"

Article Synopsis
  • * Identifying high-risk patients is possible through TP53 and RB1 mutations, but there are currently no strategies to prevent this transformation.
  • * Targeting the CDC7 kinase with the inhibitor simurosertib may block NE transformation and improve responses to both targeted and standard chemotherapy in experimental models, indicating a potential new treatment approach for these cancers.
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The poor prognosis of head and neck cancer (HNC) is associated with metastasis within the lymph nodes (LNs). Herein, the proteome of 140 multisite samples from a 59-HNC patient cohort, including primary and matched LN-negative or -positive tissues, saliva, and blood cells, reveals insights into the biology and potential metastasis biomarkers that may assist in clinical decision-making. Protein profiles are strictly associated with immune modulation across datasets, and this provides the basis for investigating immune markers associated with metastasis.

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The objective of this study was to compare the efficiency of estradiol benzoate (EB) and 17β-estradiol (E2) associated with progesterone (P4) in a fixed-time artificial insemination (FTAI) protocol. We hypothesized that E2+P4 induces an earlier emergence of a new follicular wave (NFW), improving pre-ovulatory follicle diameter and pregnancy rates to FTAI (P/FTAI). In Exp.

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Cellulose nanocrystals (CNC) are linear organic nanomaterials derived from an abundant naturally occurring biopolymer resource. Strategic modification of the primary and secondary hydroxyl groups on the CNC introduces amine and iodine group substitution, respectively. The amine groups (0.

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Article Synopsis
  • Human papillomavirus (HPV) types 6 and 11 are linked to recurrent respiratory papillomatosis (RRP), and this study looked into the genetic variants of these HPVs in juvenile onset (JORRP) and adult onset (AORRP) cases.
  • Out of 67 samples analyzed, HPV-6 B1 and B3 variants were most common, while HPV-11 A2 was predominant; JORRP cases showed a higher frequency of HPV-6 B1.
  • The study found no significant link between specific HPV variants and RRP characteristics, except that HPV-6 B1 variants had a lower recurrence rate in patients.
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We aimed to evaluate the accuracy of Interferon-tau stimulated genes (ISG) abundance in peripheral blood polymorphonuclear cells (PMNs) on D20 after fixed-time artificial insemination (FTAI; D0) as a pregnancy diagnosis method against CL evaluation by Doppler ultrasonography and progesterone (P4) concentrations on D20, as well as Pregnancy Associated Glycoproteins (PAG) concentrations on D25. Additionally, we evaluated the potential of ISG abundance in PMNs as pregnancy loss predictors. Nelore heifers (n = 103) and cows (n = 144) underwent estrous synchronization and were artificially inseminated on D0.

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An α particle-emitting nanodrug that is a potent and specific antitumor agent and also prompts significant remodeling of local immunity in the tumor microenvironment (TME) has been developed and may impact the treatment of melanoma. Biocompatible ultrasmall fluorescent core-shell silica nanoparticles (C' dots, diameter ∼6.0 nm) have been engineered to target the melanocortin-1 receptor expressed on melanoma through α melanocyte-stimulating hormone peptides attached to the C' dot surface.

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Objective: The objective was to investigate the prevalence of the Epstein-Barr virus (EBV) and its association with human papilloma virus (HPV) detection, clinicopathological features, and the severity of recurrent respiratory papillomatosis (RRP).

Methods: Cases of juvenile recurrent respiratory papillomatosis (JRRP) (n = 36) and adult recurrent respiratory papillomatosis (ARRP) (n = 44) were collected retrospectively and subdivided into low- and high-risk severity groups based on the Derkay score. We performed HPV detection and genotyping using a reverse hybridization protocol and investigated the presence of EBV by polymerase chain reaction (PCR) and in situ hybridization.

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The aim of this research was to evaluate the effect of recombinant bovine somatotropin (bST) on pregnancy per artificial insemination (P/AI), cellular composition of the corpus luteum (CL) and endometrial gland morphometry. In Experiment 1, Nelore cows (n = 587) received a fixed-time artificial insemination (FTAI) protocol and, at insemination, received 0, 250 or 500 mg of bST subcutaneously (SC). In Experiment 2, Nelore cows (n = 243) received 0 or 500 mg of bST, SC, on D7 (D0 = day of FTAI).

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Article Synopsis
  • The study evaluated the reproductive performance of Nelore lactating cows undergoing a resynchronization process 12 days after timed artificial insemination (TAI) using either a long-acting progesterone (P4-LA) treatment or a control without it.
  • Results showed no significant differences in pregnancy rates at various stages between the control and P4-LA groups but indicated higher estrous detection and pregnancy rates in the P4-LA group during the second TAI.
  • Overall, while both groups had similar cumulative pregnancy rates after two TAIs, the use of P4-LA appears to enhance early resynchronization strategies for improving fertility in beef cows.
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Sequencing technologies and new bioinformatics tools have led to the complete sequencing of various genomes. However, information regarding the human transcriptome and its annotation is yet to be completed. The Human Cancer Genome Project, using ORESTES (open reading frame EST sequences) methodology, contributed to this objective by generating data from about 1.

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