Objectives: Methotrexate (MTX) has been a prevalent drug in conservative treatment of unruptured tubal pregnancy for many years. However, few researchers have performed morphological and protein analysis simultaneously to evaluate the specific toxic effects of MTX on the fallopian tubes. The aim of this study was to investigate acute and long-term toxic effects of increasing doses of MTX on the fallopian tubes and a possible dose-effect relationship. We also discuss the potential implications for subsequent pregnancies.
Study Design: At the 10th day and the 2nd and 3rd months after MTX treatment, a total of 108 females SD rats in estrus stage (27 rats in each group) were collected according to the dose of MTX i.p.: 1, 2, 5mg/kg body weight in groups I, II and III respectively and physiological saline i.p. in group IV for control. Nine rats in each group were killed at each time point and tissues close to the ampulla of the fallopian tubes were dissected for HE staining and routine histological observation. Estrogen receptor (ER) and progesterone receptor (PR) expression was detected by immunohistochemistry and Western blot.
Results: Morphological observation showed acute endosalpingitis in group I, becoming more intense with increasing doses of MTX in groups II and III in a reversible mode. Expression of ER in the endosalpinx significantly decreased in parallel with increasing doses of MTX in a dose-effect manner, which was reversible in groups I and II and irreversible in group III. Furthermore, ER and PR could recover close to normal levels in groups I and II after the 3rd month, while they could not restore to normal in group III.
Conclusions: These results provide the first evidence that MTX (>or=5mg/kg) can induce long-term, irreversible damage to steroid hormone receptors in the fallopian tubes in a dose-dependent manner. We tentatively suggest that MTX should be used in a relatively small and safe range of dosage in order to avoid impairment and potential risk of subsequent tubal pregnancy or infertility.
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http://dx.doi.org/10.1016/j.ejogrb.2009.05.036 | DOI Listing |
Radiol Case Rep
March 2025
Department of Radiology and Imaging, Grande International Hospital, Kathmandu, Nepal.
Kartagener syndrome is a rare ciliopathic genetic disorder characterized by a triad of chronic sinusitis, situs inversus, and bronchiectasis. The underlying pathophysiology involves reduced ciliary motility due to defects in ciliary structure and function within the respiratory tract and fallopian tubes. Diagnosis is typically confirmed through imaging studies such as X-rays, CT scans, and echocardiograms, which reveal the abnormal orientation of the heart and other organs.
View Article and Find Full Text PDFCureus
December 2024
Pathology, Social Insurance Tagawa Hospital, Tagawa, JPN.
A 67-year-old woman was diagnosed with ileocecal cancer presenting with intestinal obstruction. She underwent an ileocecal resection and D3 lymph node dissection. Pathological diagnosis showed a moderately differentiated adenocarcinoma, pT4aN0M0.
View Article and Find Full Text PDFInt J Surg Case Rep
January 2025
Department of Gynecology and Obstetrics, Fatouma Bourguiba University Hospital, Tunisia.
Introduction And Importance: Cystic endosalpingiosis is a rare, benign condition characterized by the presence of fallopian tube-like epithelium outside the fallopian tubes. It predominantly affects menopausal women and is often asymptomatic. Florid cystic endosalpingiosis, an unusual form, can mimic malignant ovarian masses, making accurate diagnosis crucial.
View Article and Find Full Text PDFJ Clin Med
December 2024
Department of Reproductive Medicine, Kameda IVF Clinic Makuhari, Chiba 261-8501, Japan.
: Hysterosalpingography (HSG) is pivotal in delineating tubal pathology, but is associated with pain and exposure to ionizing radiation. This study investigated which reproductive factors predict HSG-identified tubal pathology. : From May 2016 to August 2023, 3322 infertile females with HSG (mean age 33.
View Article and Find Full Text PDFHum Reprod
January 2025
IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Univ Toulouse III-Paul Sabatier (UPS), Toulouse, France.
Study Question: Does a human fallopian tube (HFT) organoid model offer a favourable apical environment for human sperm survival and motility?
Summary Answer: After differentiation, the apical compartment of a new HFT organoid model provides a favourable environment for sperm motility, which is better than commercial media.
What Is Known Already: HFTs are the site of major events that are crucial for achieving an ongoing pregnancy, such as gamete survival and competence, fertilization steps, and preimplantation embryo development. In order to better understand the tubal physiology and tubal factors involved in these reproductive functions, and to improve still suboptimal in vitro conditions for gamete preparation and embryo culture during IVF, we sought to develop an HFT organoid model from isolated adult stem cells to allow spermatozoa co-culture in the apical compartment.
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