Результаты поиска

Influence of Vitamin D on the Growth and Development of Uterine Fibroids.

Uterine fibroids represent the most frequently encountered benign gynecological tumors in women of reproductive age. Key risk factors include vitamin D deficiency, obesity, dark skin pigmentation, low parity, premenopausal status, hereditary/hormonal backgrounds, and heavy alcohol consumption. Although benign, fibroids severely diminish the quality of life via symptoms such as abnormal uterine bleeding, pelvic pressure, urinary frequency/retention, anemia, infertility, and poor obstetric outcomes. Current surgical, medical, and interventional therapies impose immense financial burdens on healt

Efficacy and Safety of Ormeloxifene Versus Conventional Hormonal Therapy in Women With Non-structural Abnormal Uterine Bleeding: A Systematic Review and Meta-Analysis.

BACKGROUND: Abnormal uterine bleeding (AUB) is a major gynecological complaint that significantly impacts women's quality of life, particularly during their reproductive years. Non-structural AUB presents a therapeutic challenge due to the absence of an identifiable anatomical cause. Conventional hormonal therapies have been in use for a long time, but they are frequently associated with side effects. The advent of ormeloxifene (ORM), a non-steroidal selective estrogen receptor modulator, has emerged as a promising alternative. This systematic review and meta-analysis were conducted to provide

Pituitary prolactin-secreting tumor formation: recent developments.

Prolactinoma is the most common type of primary pituitary tumors. It occurs more frequently in women than in men. Dopaminergic agonists are effective in the shrinkage of prolactin-secreting pituitary tumor and are preferred in some patients. However, pituitary radiotherapy may enable the long-term removal of prolactin-secreting tumor cells. Recent evidence suggests that prolactinoma is a heterogeneous disorder with complicated and multifactorial etiology and pathogenesis. Apparently, a thorough understanding of prolactinoma tumorigenesis would be important. To facilitate investigations on tumo

Clinical significance of the C-reactive protein-triglyceride-glucose index in glycemic control and ischemic limb damage in type 2 diabetes with chronic limb-threatening ischemia.

Bazedoxifene is a third-generation selective estrogen receptor modulator (SERM) that is being developed by Ligand Pharmaceuticals in collaboration with Wyeth. The agent has effects on bone and cardiovascular tissue, but does not affect breast or uterine tissue. Bazedoxifene is in clinical development as a monotherapy for the prevention and treatment of postmenopausal osteoperosis, and in combination with conjugated estrogens for the treatment of menopausal symptoms and prevention of postmenopausal osteoporosis. American Home Products changed its name and the names of its subsidiaries Wyeth-Aye

Hereditary cancer syndromes as model systems for chemopreventive agent development.

Research in chemoprevention has undergone a shift in emphasis for pragmatic reasons from large, phase III randomized studies to earlier phase studies focused on safety, mechanisms, and utilization of surrogate endpoints such as biomarkers instead of cancer incidence. This transition permits trials to be conducted in smaller populations and at substantially reduced costs while still yielding valuable information. This article will summarize some of the current chemoprevention challenges and the justification for the use of animal models to facilitate identification and testing of chemopreventiv

The roles of microRNA families in hepatic fibrosis.

The Japan-China Joint Medical Workshop on Drug Discoveries and Therapeutics 2008 (JCMWDDT 2008) was held from September 29 to October 1, 2008 at The University of Tokyo, Tokyo, Japan. JCMWDDT is an international workshop that is mainly organized by Asian editorial members of Drug Discoveries & Therapeutics (<a href="http://www.ddtjournal.com/home" class="blue">http://www.ddtjournal.com/home</a>) for the purpose of promoting research exchanges in the field of drug discovery and therapeutic. This year's JCMWDDT is the second workshop and focused particularly on novel development and technologica

Bilateral prophylactic mastectomy in BRCA mutation carriers: what surgeons need to know.

Aim of this paper is to allows to analyze a topic of great relevance and media interest such as the role of prophylactic mastectomy in healt … t cancer have focused exclusively on prevention in high-risk women and involve the use of selective estrogen receptor modulators (SERMs) and aromatase inhibitors for breast cancer prevention. Only limited data are available regarding the preventive benefit of tamoxifene in BRCA mutations carriers 1. Risk-reducing bilateral salpingo-oophorectomy is recommended for BRCA mutatio …

The Role of Macrophage in the Pathogenesis of Osteoporosis.

Osteoporosis is a systemic disease with progressive bone loss. The bone loss is associated with an imbalance between bone resorption via osteoclasts and bone formation via osteoblasts. Other cells including T cells, B cells, macrophages, and osteocytes are also involved in the pathogenesis of osteoporosis. Different cytokines from activated macrophages can regulate or stimulate the development of osteoclastogenesis-associated bone loss. The fusion of macrophages can form multinucleated osteoclasts and, thus, cause bone resorption via the expression of IL-4 and IL-13. Different cytokines, endoc

Sexual dimorphism in cancer: molecular mechanisms and precision oncology perspectives.

Sex differences play a crucial role in determining tumor incidence, treatment sensitivity, and prognosis among men and women. However, current clinical cancer treatment strategies fail to account for these differences. Furthermore, the underlying mechanisms of tumor disparities between sexes remain elusive. Sex differences in sex chromosomes, hormone levels, metabolism, and immunity synergistically contribute to tumor-related disparities. As the demand for precision medicine escalates, there is an urgent need to conduct further exploration and research to address the tumor differences between

Osteoimmunopathology in HIV/AIDS: A Translational Evidence-Based Perspective.

Infection with the human immunodeficiency virus-1 (HIV) and the resulting acquired immune deficiency syndrome (AIDS) alter not only cellular immune regulation but also the bone metabolism. Since cellular immunity and bone metabolism are intimately intertwined in the osteoimmune network, it is to be expected that bone metabolism is also affected in patients with HIV/AIDS. The concerted evidence points convincingly toward impaired activity of osteoblasts and increased activity of osteoclasts in patients with HIV/AIDS, leading to a significant increase in the prevalence of osteoporosis. Research

Совпадение в полном тексте источника
… To further test and establish the strength of the clinical recommendations and the cost-effectiveness of selective estrogen receptor modulators, bisphosphonates, and parathyroid hormone for the prevention and in the treatment of osteoporosis, a systematic review was brought forward with the specific … Eligible RCT's were included if they established efficacy interventions other than estrogen and selective estrogen receptor modulators in preventing both vertebral and non-vertebral fractures over a study duration longer than 12 months. …

Clinical Efficacy of a Novel Therapeutic Principle, Anakoinosis.

Classic tumor therapy, consisting of cytotoxic agents and/or targeted therapy, has not overcome therapeutic limitations like poor risk genetic parameters, genetic heterogeneity at different metastatic sites or the problem of undruggable targets. Here we summarize data and trials principally following a completely different treatment concept tackling systems biologic processes: the principle of communicative reprogramming of tumor tissues, i.e., anakoinosis (ancient greek for communication), aims at establishing novel communicative behavior of tumor tissue, the hosting organ and organism via re

The Role of Inflammatory Cytokines, the RANKL/OPG Axis, and the Immunoskeletal Interface in Physiological Bone Turnover and Osteoporosis.

Although it has long been recognized that inflammation, a consequence of immune-driven processes, significantly impacts bone turnover, the degree of centralization of skeletal and immune functions has begun to be dissected only recently. It is now recognized that formation of osteoclasts, the bone resorbing cells of the body, is centered on the key osteoclastogenic cytokine, receptor activator of NF- κ B ligand (RANKL). Although numerous inflammatory cytokines are now recognized to promote osteoclast formation and skeletal degradation, with just a few exceptions, RANKL is now considered to be

Drug repurposing for breast cancer therapy: Old weapon for new battle.

Despite tremendous resources being invested in prevention and treatment, breast cancer remains a leading cause of cancer deaths in women globally. The available treatment modalities are very costly and produces severe side effects. Drug repurposing that relate to new uses for old drugs has emerged as a novel approach for drug development. Repositioning of old, clinically approved, off patent non-cancer drugs with known targets, into newer indication is like using old weapons for new battle. The advances in genomics, proteomics and information computational biology has facilitated the process o

Melatonin and Its Role in the Epithelial-to-Mesenchymal Transition (EMT) in Cancer.

The epithelial-to-mesenchymal transition (EMT) is a cell-biological program that occurs during the progression of several physiological processes and that can also take place during pathological situations such as carcinogenesis. The EMT program consists of the sequential activation of a number of intracellular signaling pathways aimed at driving epithelial cells toward the acquisition of a series of intermediate phenotypic states arrayed along the epithelial-mesenchymal axis. These phenotypic features include changes in the motility, conformation, polarity and functionality of cancer cells, u

Молекулярная и клеточная основа физиологических изменений беременности и ее последствий для нейрологовых и офтальмических патологий.

Беременность олицетворяет глубокие неврологические, гормональные и анатомические преобразования в материнском мозге, подготавливая их к уходу и сближению младенцев. Нейроимация свидетельствует о таких структурных изменениях, как сокращение содержания серых веществ и реорганизация белых веществ во время беременности, за которыми следует частичное послеродовое выздоровление. Эти адаптации модернизируются изменяющимися уровнями эстрадиола, прогестерона, пролактина и окситоцина, которые координируют нейропластичность и поведенческий уровень готовности. На молекулярном и клеточном уровнях гормоны б

Targeting the RANKL/RANK/OPG Axis for Cancer Therapy.

RANKL and RANK are expressed in different cell types and tissues throughout the body. They were originally described for their essential roles in bone remodeling and the immune system but have subsequently been shown to provide essential signals from regulating mammary gland homeostasis during pregnancy to modulating tumorigenesis. The success of RANKL/RANK research serves as a paragon for translational research from the laboratory to the bedside. The case in point has been the development of Denosumab, a RANKL-blocking monoclonal antibody which has already helped millions of patients sufferin

Nuclear receptors in health and disease: signaling pathways, biological functions and pharmaceutical interventions.

Nuclear receptors (NRs) are a large family of ligand-dependent transcription factors that regulate the expression of a wide range of target genes in response to endogenous and exogenous ligands, including steroid hormones, thyroid hormone, vitamin D, retinoic acid, fatty acids, and oxidative steroids. Upon ligand binding, nuclear receptors form dimer complexes with transcriptional cofactors, which interact with specific DNA sequences in the promoter or enhancer regions of target genes to modulate gene expression. This process plays a crucial role in many physiological processes such as reprodu

Совпадение в полном тексте источника
… This hypothesis provides an explanation for how structurally different ligands, such as selective estrogen receptor modulators, could influence multiple genes in the same cell via the same receptor or how they could jointly regulate the expression of a single gene. …

Postbiotics as Emerging Strategy Targeting Obesity- and Aging-Related Breast Cancer-Prospects in Prophylaxis and Therapy.

Aging and obesity accompanied with hormonal disequilibrium represent critical, inter-related risk factors for breast cancer, significantly influencing disease incidence, progression, and therapeutic outcomes. This review aims to elucidate the multifaceted biological mechanisms linking obesity and aging to breast carcinogenesis, with a particular focus on the emerging therapeutic and preventive potential of postbiotics as molecules targeting cellular events important for cancer growth and responsiveness. Despite continuous advancement, breast cancer therapy still poses several challenges, such

Совпадение в полном тексте источника
… The classical treatment for HR-positive/HER2-negative breast cancer is based on tamoxifen and its derivatives—selective estrogen receptor modulators (SERMs). …

Human Cancers Derived from Either Genetic or Lifestyle Factors Are Initiated by Impaired Estrogen Signaling.

BackgroundGenetic studies have found that a germline BRCA1 gene mutation is the origin of highly increased cancer risk. Clinical studies have suggested that increased cancer risk in type-2 diabetes may be attributed to unhealthy lifestyle factors and bad habits.PurposePatients with either BRCA1 gene mutation or type-2 diabetes similarly exhibit increased cancer risk, insulin resistance, and fertility disorders. It was suggested that these three alterations derive from a common genomic failure, and its recognition may shed light on the unsolved secret of cancer.Results(1) Germline mutations on

Primary Osteoporosis Induced by Androgen and Estrogen Deficiency: The Molecular and Cellular Perspective on Pathophysiological Mechanisms and Treatments.

Primary osteoporosis is closely linked to hormone deficiency, which disrupts the balance of bone remodeling. It affects postmenopausal women but also significantly impacts older men. Estrogen can promote the production of osteoprotegerin, a decoy receptor for RANKL, thereby preventing RANKL from activating osteoclasts. Furthermore, estrogen promotes osteoblast survival and function via activation of the Wnt signaling pathway. Likewise, androgens play a critical role in bone metabolism, primarily through their conversion to estrogen in men. Estrogen deficiency accelerates bone resorption throug

Совпадение в полном тексте источника
… receptor modulators), and calcitonin salmon. … Developing selective estrogen receptor modulators (SERMs), selective androgen receptor modulators (SARMs), and other hormone analogs can offer safer alternatives to traditional HRT. …