A sterilization method for human decellularized vaginal matrices.

Vaginal reconstruction is necessary for various congenital and acquired conditions, including vaginal aplasia, trauma, tumors, and gender incongruency. Current surgical and non-surgical treatments often result in significant complications. Decellularized vaginal matrices (DVMs) from human tissue offer a promising alternative, but require effective sterilization to ensure safety and functionality.

Robotic-assisted laparoscopic colpectomy combined with a hysterectomy and bilateral salpingo-oophorectomy versus a vaginal colpectomy in trans masculine individuals.

Colpectomy entails the surgical removal of the vaginal epithelium. It may be performed in trans-masculine individuals as gender-affirming surgery. Vaginal colpectomy is a complex procedure with potentially severe complications.

Same-day discharge after laparoscopic hysterectomy for benign/premalignant disease: A multicentre randomised controlled trial.

Objective: To evaluate whether physical function and quality of life was influenced by discharge on the same-day after a total laparoscopic hysterectomy.

Design: Multicentre non-inferiority randomised controlled trial.

Setting: Five teaching hospitals and two university hospitals in the Netherlands.

The effect of colpectomy on lower urinary tract function in transgender men.

In transgender men, effects of colpectomy on voiding function are unknown, except for the incidence rates of urinary tract infections and urinary retention. To provide insight into the effect of colpectomy on Lower Urinary Tract Function (LUTF) in transgender men. A retrospective chart review was conducted among transgender men who underwent colpectomy between January 2018 and October 2020.

Creation of a decellularized vaginal matrix from healthy human vaginal tissue for potential vagina reconstruction: experimental studies.

Background: When a disorder causes the absence of a healthy, full-size vagina, various neovaginal creation methods are available. Sometimes dilation or stretching of the vaginal cavity is sufficient, but intestinal or dermal flap tissue is generally required. However, different inherent tissue properties cause complications.

Effectiveness of laparoscopic niche resection versus expectant management in patients with unexplained infertility and a large uterine caesarean scar defect (uterine niche): protocol for a randomised controlled trial (the LAPRES study).

Introduction: A uterine niche is a defect at the site of the uterine caesarean scar that is associated with gynaecological symptoms and infertility. Promising results are reported in cohort studies after a laparoscopic niche resection concerning reduction of gynaecological symptoms in relation to baseline and concerning pregnancy outcomes. However, randomised controlled trials to study the effect of a laparoscopic niche resection on reproductive outcomes in infertile women are lacking.

Effectiveness, complications, and reproductive outcomes after cesarean scar pregnancy management: a retrospective cohort study.

Background: There is a dramatic rise in cesarean deliveries worldwide, leading to higher complication rates in subsequent pregnancies. One of these complications is a cesarean scar pregnancy. During the last decades, treatment options for cesarean scar pregnancies have changed, and less invasive interventions have been employed to preserve fertility and reduce morbidity.

Tissue Engineering Neovagina for Vaginoplasty in Mayer-Rokitansky-Küster-Hauser Syndrome and Gender Dysphoria Patients: A Systematic Review.

Vaginoplasty is a surgical solution to multiple disorders, including Mayer-Rokitansky-Küster-Hauser syndrome and male-to-female gender dysphoria. Using nonvaginal tissues for these reconstructions is associated with many complications, and autologous vaginal tissue may not be sufficient. The potential of tissue engineering for vaginoplasty was studied through a systematic bibliography search.

Assessing the use of tumor-specific DARPin-toxin fusion proteins for ex vivo purging of cancer metastases from human ovarian cortex before autotransplantation.

Objective: To assess the use of tumor-specific designed ankyrin repeat proteins (DARPins) fused to a domain of Pseudomonas aeruginosa exotoxin A for purging of cancer metastases from the ovarian cortex.

Design: Experimental study.

Setting: University medical center.

Perineal Cyst in Transgender Men: A Rare Complication Following Gender Affirming Surgery - A Case Series and Literature Overview.

Introduction: Genital gender affirming surgery (gGAS) is usually the final stage in the medical transition for transgender men and consists of creating a neophallus and neo-scrotum, with or without urethral lengthening(UL). To reduce the complication risks of UL, a mandatory colpectomy is performed prior to UL. Colpectomy is considered a complex surgery, which may lead to various perioperative complications.

Combining total laparoscopic hysterectomy and bilateral salpingo-oophorectomy with subcutaneous mastectomy in trans men: The effect on safety outcomes.

Masculinizing mastectomy is the most requested gender affirming surgery (GAS) in trans men, followed by genital GAS. Mastectomy and total laparoscopic hysterectomy, with or without bilateral salpingo-oophorectomy (TLH ± BSO), can both be performed in one single operation session. However, data on complication rates of the combined procedure is scarce and no consensus exists on the preferred order of procedures.

Role of angiogenesis in adenomyosis-associated abnormal uterine bleeding and subfertility: a systematic review.

Background: Adenomyosis commonly occurs with abnormal uterine bleeding (AUB) and is associated with subfertility and a higher miscarriage rate. Recent evidence showed abnormal vascularization in the endometrium in patients with adenomyosis, suggesting a role of angiogenesis in the pathophysiology of AUB and subfertility in adenomyosis and providing a possible treatment target.

Objective And Rationale: We hypothesized that the level of abnormal vascularization and expression of angiogenic markers is increased in the ectopic and eutopic endometrium of adenomyosis patients in comparison with the endometrium of control patients.

Ovarian follicles of young patients with Turner's syndrome contain normal oocytes but monosomic 45,X granulosa cells.

Study Question: What is the X chromosomal content of oocytes and granulosa cells of primordial/primary (small) follicles and stromal cells in ovaries of young patients with Turner's syndrome (TS)?

Summary Answer: Small ovarian follicles were detected in one-half of the patients studied, and X chromosome analysis revealed that most oocytes were normal, granulosa cells were largely monosomic, while stromal cells showed a high level of mosaicism.

What Is Known Already: Most women with TS experience a premature reduction or complete loss of fertility due to an accelerated loss of gametes. To determine whether fertility preservation in this group of patients is feasible, there is a strong need for information on the X chromosomal content of ovarian follicular and stromal cells.

Vaginal Colpectomy in Transgender Men: A Retrospective Cohort Study on Surgical Procedure and Outcomes.

Background: Colpectomy, removal of the vaginal epithelium, may be performed in transgender men because of a disturbed male self-image, to reduce vaginal discharge, or to reduce the risk of fistula formation at the urethral-neourethral junction in future phalloplasty or metaidoioplasty.

Aim: To demonstrate that vaginal colpectomy in transgender men, either alone or in combination with, for example, laparoscopic hysterectomy, metaidoioplasty, scrotoplasty, or urethroplasty, is a feasible procedure.

Methods: This single-center retrospective cohort study included 143 transgender men who underwent vaginal colpectomy between January 2006 and April 2018.

Colpectomy Significantly Reduces the Risk of Urethral Fistula Formation after Urethral Lengthening in Transgender Men Undergoing Genital Gender Affirming Surgery.

Purpose: We assessed the effect of performing colpectomy before (primary) or after (secondary) gender affirming surgery with single stage urethral lengthening on the incidence of urethral fistula in transgender men.

Materials And Methods: We retrospectively reviewed the charts of all transgender men who underwent gender affirming surgery with urethral lengthening between January 1989 and November 2016 at VU University Medical Center. Patient demographics, surgical characteristics, fistulas and fistula management, and primary and secondary colpectomy were recorded.

Completing or Abandoning Radical Hysterectomy in Early-Stage Lymph Node-Positive Cervical Cancer: Impact on Disease-Free Survival and Treatment-Related Toxicity.

Introduction: Management regarding completing hysterectomy in case of intraoperative finding of positive lymph nodes in early-stage cervical cancer differs between institutions. The aim of this study was to compare survival and toxicity after completed hysterectomy followed by adjuvant (chemo-)radiotherapy versus abandoned hysterectomy and primary treatment with chemoradiotherapy (CRT).

Methods: A retrospective multicenter cohort study was performed.

Robot-assisted laparoscopic colpectomy in female-to-male transgender patients; technique and outcomes of a prospective cohort study.

Background: Gender-affirming surgeries in female-to-male (FtM) transgender patients include mostly hysterectomy, bilateral salpingo-oophorectomy and mastectomy. Sometimes further surgery is performed, such as phalloplasty. Colpectomy may be performed to overcome gender dysphoria and disturbing vaginal discharge; furthermore, it may be important in reducing the risk of fistulas due to the phalloplasty procedure with urethral elongation.

Hypoxia-inducible factor-1 stimulates postnatal lung development but does not prevent O2-induced alveolar injury.

This study investigated whether hypoxia-inducible factor (HIF)-1 influences postnatal vascularization and alveologenesis in mice and whether stable (constitutive-active) HIF could prevent hyperoxia-induced lung injury. We assessed postnatal vessel and alveolar formation in transgenic mice, expressing a stable, constitutive-active, HIF1α-subunit (HIF-1αΔODD) in the distal lung epithelium. In addition, we compared lung function, histology, and morphometry of neonatal transgenic and wild-type mice subjected to hyperoxia.

Effect of chemical stabilizers of hypoxia-inducible factors on early lung development.

Low oxygen stimulates pulmonary vascular development and airway branching and involves hypoxia-inducible factor (HIF). HIF is stable and initiates expression of angiogenic factors under hypoxia, whereas normoxia triggers hydroxylation of the HIF-1alpha subunit by prolyl hydroxylases (PHDs) and subsequent degradation. Herein, we investigated whether chemical stabilization of HIF-1alpha under normoxic (20% O(2)) conditions would stimulate vascular growth and branching morphogenesis in early lung explants.

Angiogenic factors stimulate tubular branching morphogenesis of sonic hedgehog-deficient lungs.

Sonic Hedgehog (Shh)-deficient mice have a severe lung branching defect. Recent studies have shown that hedgehog signaling is involved in vascular development and it is possible that the diminished airway branching in Shh-deficient mice is due to abnormal pulmonary vasculature formation. Therefore, we investigated the role of Shh in pulmonary vascular development using Shh/Tie2lacZ compound mice, which exhibit endothelial cell-specific LacZ expression, and Pecam-1 immunohistochemistry.

Iroquois genes influence proximo-distal morphogenesis during rat lung development.

Lung development is a highly regulated process directed by mesenchymal-epithelial interactions, which coordinate the temporal and spatial expression of multiple regulatory factors required for proper lung formation. The Iroquois homeobox (Irx) genes have been implicated in the patterning and specification of several Drosophila and vertebrate organs, including the heart. Herein, we investigated whether the Irx genes play a role in lung morphogenesis.

Alveolar capillary dysplasia: a logical approach to a fatal disease.

Purpose: The aim of the study was to review the authors' experience with alveolar capillary dysplasia (ACD), a cause of persistent pulmonary hypertension of the neonate (PPHN) caused by decreased alveolar units, dilated anomalous pulmonary veins, thick-walled arterioles, and thickened interalveolar septa.

Methods: The records of all neonates with ACD were reviewed from Children's Hospital, Columbus, Ohio, and Sophia's Children's Hospital, Rotterdam, The Netherlands. The clinical characteristics and pathological findings are discussed.

Overexpression of lunatic fringe does not affect epithelial cell differentiation in the developing mouse lung.

The Notch/Notch-ligand pathway regulates cell fate decisions and patterning in various tissues. Several of its components are expressed in the developing lung, suggesting that this pathway is important for airway cellular patterning. Fringe proteins, which modulate Notch signaling, are crucial for defining morphogenic borders in several organs.

Morphometric analysis of the lung vasculature after extracorporeal membrane oxygenation treatment for pulmonary hypertension in newborns.

Persistent pulmonary hypertension in the newborn (PPHN) is characterised by increased medial and adventitial thickness in the lung vasculature. This study describes morphometry of lung vasculature after extracorporeal membrane oxygenation (ECMO) in newborns with PPHN, due to meconium aspiration syndrome, sepsis or idiopathic persistent pulmonary hypertension of the newborn (i-PPHN). Three groups were studied: newborns with PPHN treated with ECMO (n=9), newborns with PPHN not treated with ECMO (n=12) and age-matched controls without PPHN (n=11).