Publications by authors named "Maria I Carmona-Lopez"

Article Synopsis
  • Human papillomavirus (HPV) is the leading cause of cervical cancer, significantly impacting women in Chile, where cervical cancer is a major health risk for those aged 20-44.
  • This study tested a less invasive urine-based method for HPV detection using PCR, comparing it to the traditional cervical brush approach.
  • Results showed both methods effectively detected carcinogenic HPV types, with the urine approach providing a promising alternative to improve screening, especially for women avoiding pelvic exams.
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Introduction: classical studies have compared the glycemia with the nutritional status in both children and adults; however studies that consider also somatotype are unknown.

Objective: associating the somatotype and nutritional status with the glycemic level of students of Pedagogy in Physical Education (PPE).

Methods: the sample included 40 subjects, divided between 13 women and 27 men.

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Introduction: A study was conducted on histological patterns and biomolecular changes in Goitrogen-induced experimental rat thyroid tumors. The link between the histological types observed and N-ras, B-raf, and PI3KCA gene mutations widely reported in human thyroid cancers was explored.

Material And Methods: An analysis was done on paraffin-embedded tumor tissue sections from Wistar rats receiving 1% potassium perchlorate (KClO(4)) added to the ad libitum drinking-water supply over an 18-month period.

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Amitriptyline is a commonly prescribed tricyclic antidepressant, which has been shown to impair mitochondrial function and increase oxidative stress in a variety of in vitro assays. Coenzyme Q(10) (CoQ(10)), an essential component of the mitochondrial respiratory chain and a potent antioxidant, has been proposed as a mitochondrial dysfunction marker. In order to evaluate the putative mitochondrial toxicity of amitriptyline, we have analyzed CoQ(10) and ATP levels, oxidative damage and mitochondrial mass in peripheral blood cells from control healthy volunteers and psychiatric patients with depressive episodes treated or non-treated with amitriptyline.

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Oxidative therapy is a relatively new anticancer strategy based on the induction of high levels of oxidative stress, achieved by increasing intracellular reactive oxygen species (ROS) and/or by depleting the protective antioxidant machinery of tumor cells. We focused our investigations on the antitumoral potential of amitriptyline in three human tumor cell lines: H460 (lung cancer), HeLa (cervical cancer), and HepG2 (hepatoma); comparing the cytotoxic effect of amitriptyline with three commonly used chemotherapeutic drugs: camptothecin, doxorubicin, and methotrexate. We evaluated apoptosis, ROS production, mitochondrial mass and activity, and antioxidant defenses of tumor cells.

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Objectives: Coenzyme Q(10) (CoQ(10)) is an essential electron carrier in the mitochondrial respiratory chain and a strong antioxidant. Signs associated with skin alteration and mitochondrial dysfunction have been observed in patients with fibromyalgia (FM). The aim of this study was to analyze CoQ(10) levels, mitochondrial dysfunction, and oxidative stress in plasma, blood mononuclear cells, and skin biopsies from FM patients.

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