Publications by authors named "Redondo P"

Some skin tumors can extend beyond their clinical appearance. This presents an additional challenge, especially when the affected area is the genital region, which is more difficult for both the patient and the physician to access and monitor due to its location and anatomical characteristics. The treatment of these lesions is complex, and literature postulates Mohs surgery as the best therapeutic option.

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Extended synaptotagmins (E-Syts) are endoplasmic reticulum (ER)-associated proteins that facilitate the tethering of the ER to the plasma membrane (PM), participating in lipid transfer between the membranes and supporting the Orai1-STIM1 interaction at ER-PM junctions. Orai1 and STIM1 are the core proteins of store-operated Ca entry (SOCE), a major mechanism for Ca influx that regulates a variety of cellular functions. Aberrant modulation of SOCE in cells from different types of cancer has been reported to underlie the development of several tumoral features.

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Despite the high prevalence of localised prostate cancer (LPC) and locally advanced prostate cancer (LAPC), evidence on the characteristics of patients, treatments and clinical outcomes stratified by disease risk is limited. The PEarlC study was conducted to characterise a cohort of patients with early-stage prostate cancer that included real-world clinical outcomes. Retrospective data from a cohort of patients diagnosed with LPC/LAPC between 2015 and 2017 and followed up until December 2020 at a Portuguese comprehensive cancer centre (IPO Porto) was analysed.

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Introduction/background: Hormone Receptor-positive (HR+) and Human Epidermal Growth Factor Receptor 2-negative (HER2-) breast cancer is the most common subtype, predominantly treated with endocrine therapy. The efficacy of CDK4/6 inhibitors combined with endocrine therapy in this context remains to be fully evaluated.

Materials (or Patients) And Methods: This study compared the effectiveness of CDK4/6 inhibitors (palbociclib and ribociclib) in combination with an aromatase inhibitor or fulvestrant against endocrine therapy alone in patients with HR+/HER2- advanced breast cancer.

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Background: Immunosuppressed (IS) patients, particularly solid organ transplant recipients and those on immunosuppressive therapy, face a higher incidence and recurrence of nonmelanoma skin cancers (NMSC), including basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). Mohs micrographic surgery (MMS) is the preferred treatment for high-risk NMSC due to its high cure rate and margin examination capabilities. However, IS patients may experience more complications, such as surgical site infections, and a greater risk of recurrence, making their outcomes a subject of interest.

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The exploration of phosphorus-bearing species stands as a prolific field in current astrochemical research, particularly within the context of prebiotic chemistry. Herein, we have employed high-level quantum chemistry methodologies to predict the structure and spectroscopic properties of isomers composed of a methyl group and three P, C, and O atoms. We have computed relative and dissociation energies, as well as rotational, rovibrational, and torsional parameters using the B2PLYPD3 functional and the explicitly correlated coupled cluster CCSD(T)-F12b method.

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Background: We have conducted cooperative campaigns focusing on albino patients in a rural area of Malawi. What have we learned?

Methods: Three surgical campaigns were performed in Nkhotakota district (2019-2023). Albino clinical and tumor characteristics were collected.

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Article Synopsis
  • The preferred method for closing small to medium defects on the lower half of the nose is using local flaps, specifically the dorsal nasal (Rieger) flap for medium defects that are wider than they are tall.
  • A study reviewed patients from 2019 to 2022 who had large nasal defects (>20 mm) repaired using a rotation-transposition flap, focusing on a unique design that includes a transposition lobe for better tissue acquisition.
  • Fourteen patients (aged 47-83) were studied, and results showed that the technique was effective, with good cosmetic outcomes and minimal complications over follow-ups ranging from 12 months to 3 years.
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Introduction: An increasing aggressiveness in cancer treatment at the end of life (EoL) has been reported in several, but not all, countries. This study aimed to see how aggressive cancer treatment is at the EoL in an oncology center.

Methods: Retrospective study of patients 18 years or older with a solid cancer diagnosis who died in 2017.

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Background: Multiple, large or giant congenital melanocytic nevi (CMN) are uncommon and affected patients can show progressive growth and thickening, associate neurocutaneous melanocytosis or develop melanoma. Current treatment modalities are mostly complex surgeries that frequently do not solve the disease and its risks completely. Thus, investigation on new treatment options for CMN and its complications must continue.

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Neonatal platelets present a reduced response to the platelet agonist, thrombin (Thr), thus resulting in a deficient Thr-induced aggregation. These alterations are more pronounced in premature newborns. Here, our aim was to uncover the causes underneath the impaired Ca homeostasis described in neonatal platelets.

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Reconstruction of the auricular concha poses a challenge due to its difficult access and limited tissue flexibility; however, there are no recommendations in the literature on which reconstructive technique should be favored for this anatomical site. This systematic review intends to describe and compare the reconstructive techniques used in conchal bowl reconstruction following cutaneous oncologic surgery of this region, with regard to their complications and aesthetic results. In doing so, we aim to identify the best suited reconstructive procedure(s) for the conchal bowl.

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Background: Repairing lower extremity defects presents challenges due to the scarcity of available local tissue. Skin grafting is a widely employed technique for addressing non-healing ulcers, improving the quality of life of patients and minimizing discomfort. However, using traditional donor sites, such as the thigh, can hinder mobility and result in noticeable scarring and pigmentation changes.

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Hypoxia is considered to be a stressful physiological condition, which may occur during labor and the later stages of pregnancy as a result of, among other reasons, an aged placenta. Therefore, when gestation or labor is prolonged, low oxygen supply to the tissues may last for minutes, and newborns may present breathing problems and may require resuscitation maneuvers. As a result, poor oxygen supply to tissues and to circulating cells may last for longer periods of time, leading to life-threatening conditions.

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Article Synopsis
  • The STIM family proteins, particularly STIM1 and STIM2, are essential for regulating calcium levels in cells by managing store-operated Ca entry (SOCE).
  • Dysregulation of calcium signaling involving these proteins is linked to various diseases, including neurodegenerative disorders and cancer.
  • The review highlights rare conditions related to STIM1 mutations and STIM2 genetic alterations, emphasizing their impact on muscle function, immune response, and developmental issues.
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  • There are clear guidelines for hereditary diffuse gastric cancer, but not for familial intestinal gastric cancer (FIGC), leading to uncertainty about how to check for it.
  • A study in Spain looked at families with FIGC to find out how often they should have endoscopies (a test doctors use to look at the stomach).
  • They found that many people in these families had early signs of stomach cancer and that the bacteria Helicobacter pylori increases the risk of those signs appearing.
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  • The forehead and temporal regions are common sites for skin cancer, requiring careful reconstruction after tumor removal to maintain facial symmetry and conceal scars.
  • Skin grafts and secondary wound healing often result in poor cosmetic outcomes, making skin flaps the preferred method for reconstruction when direct closure isn't possible.
  • Techniques like the frontalis myocutaneous transposition flap and the preauricular skin advancement flap are effective for closing larger defects on the forehead and temporal areas, respectively.
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Contagion arising from clustering of multiple time series like those in the stock market indicators can further complicate the nature of volatility, rendering a parametric test (relying on asymptotic distribution) to suffer from issues on size and power. We propose a test on volatility based on the bootstrap method for multiple time series, intended to account for possible presence of contagion effect. While the test is fairly robust to distributional assumptions, it depends on the nature of volatility.

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(1) Introduction: The association between melanoma (MM) and the occurrence of second primary neoplasms (SPNs) has been extensively studied, with reported incidence rates ranging from 1.5% to 20%. This study aims to evaluate the occurrence of SPNs in patients with a history of primary MM and to describe the factors that make the risk higher in our population.

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Introduction: There is still a need to develop a simple algorithm to identify patients likely to need complex Mohs micrographic surgery (MMS) and optimize MMS schedule. The main objectives of this study are to identify factors associated with a complex MMS and develop a predictor model of the number of stages needed in surgery and the need for a complex closure.

Materials And Methods: A nationwide prospective cohort study (REGESMOHS, the Spanish Mohs surgery registry) was conducted including all patients with a histological diagnosis of basal cell carcinoma (BCC).

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Background: Altered intracellular Ca homeostasis in neonatal platelets has been previously reported. This study aims to examine the changes in the Ca entry through the store-operated calcium entry (SOCE) mechanism in neonatal platelets.

Methods: Human platelets from either control women, mothers, and neonates were isolated and, following, were fixed after being treated as required.

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Background: Satellitosis or in-transit metastasis (S-ITM) has clinical outcomes comparable to node-positivity in cutaneous squamous cell carcinoma (cSCC). There is a need to stratify the risk groups.

Objective: To determine which prognostic factors of S-ITM confer an increased risk of relapse and cSCC-specific-death.

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  • In 2020, breast cancer was the most commonly diagnosed cancer among women globally and a leading cause of cancer-related deaths in OECD countries.
  • The study in Portugal aimed to gather patient-reported outcomes and experiences of 378 women with breast cancer, highlighting the quality of care beyond traditional metrics like mortality and incidence.
  • Results indicated high satisfaction with treatment outcomes, but lower overall well-being scores compared to the general population, demonstrating the importance of measuring patient-reported metrics in cancer care in Portugal.
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