Telomeres are the ends of chromosomes and are non-coding DNA "end-capped" with structures containing DNA-quadruplexes and proteins. Telomeres become shorter after each cell division, which is one of the mechanisms of gradual ageing. Telomerase is the reverse transcriptase responsible for the extension of telomere length. It is well known that activation of telomerase in the most types of organism's cells is not enough for telomere length stabilization. The reason may be in the telomere "caps", which cover telomere ends from telomerase action. This experiment shows that telomeres were elongated by the combination of hypoxia activated telomerase and a newly developed pharmacological method removing the telomere cap when this combined method was applied to the human lymphocyte culture and the Wistar rats. Rats from the control group died at the age 1 year 7 month - 1 year 8 month, which is typical for the Wistar rats from our sub-line. Rats from the experimental group died at the age 2 year 4 month. The result Morris's labyrinth water test showed the better spatial memory function of rats passed the telomere stabilization therapy. The results of these experiments show the significant role of telomere stabilization therapy in prolongation of lifespan.
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Arch Ital Urol Androl
January 2025
Department of Urology, School of Medicine, Shiraz University of Medical Sciences, Shiraz.
Objectives: This research aimed to compare the prostate cancer (PCa) features, survival rate, and functional outcomes after open suprapubic Radical Prostatectomy (RP) between younger men (≤ 55 years) and older men (> 55 years).
Methods: In this retrospective cohort study, we studied 134 patients with clinically localized PCa who underwent RP at our centers between 2011 and 2019, with 26 (19.40%) patients aged ≤ 55.
Arch Ital Urol Androl
January 2025
Urology Department, Faculty of Medicine, Universitas Brawijaya, Saiful Anwar General Hospital, Malang.
Introduction: Excision and primary anastomosis (EPA) urethroplasty is the standard treatment for traumatic urethral strictures, but managing them remains challenging for urologists. Identifying factors leading to EPA urethroplasty failure benefits both patients and surgeons. This study aims to analyze risk factors for urethral stricture recurrence after one-year follow-up of EPA urethroplasty.
View Article and Find Full Text PDFThe aim of this comparative study was to examine the possible benefits of a dedicated Orthopaedic Trauma Room (DOTR) and in the care of patients with proximal femur fractures. A retrospective study of all orthopaedic cases with a hip fracture from 2020 to 2022 at CHC Montlegia has been undertaken, the group is compared to patients with the same impairment from 2018-2020 admitted to Saint Joseph/Esperance CHC hospitals (before the merge and the existence of a DOTR). The delay between the arrival at the emergency department and transfer to the operating room, as well as the mortality are evaluated.
View Article and Find Full Text PDFActa Orthop Belg
September 2024
Reconstruction of the anterior cruciate ligament (ACL) using hamstring autograft presents a greater risk of surgical site infection than other transplants (0.5% to 1.5%).
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Background: Thoracic SMARCA4-deficient undifferentiated tumors (SMARCA4-UT) exhibit a notably aggressive phenotype, which is associated with poor patient survival outcomes. These tumors are generally resistant to conventional cytotoxic chemotherapy, thereby limiting the availability of effective treatment options.
Case Presentation: We describe a 69-year-old AIDS patient who initially presented with a fused, enlarged lymph node on the right clavicle and mild, unexplained pain under the right axilla that worsened with severe coughing episodes.
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