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Malvasi A, Baldini GM, Cicinelli E, Di Naro E, Baldini D, Favilli A, Quellari PT, Sabbatini P, Fioretti B, Malgieri LE, Damiani GR, Dellino M, Trojano G, Tinelli A. Localization of Catecholaminergic Neurofibers in Pregnant Cervix as a Possible Myometrial Pacemaker. Int J Mol Sci 2024; 25:5630. [PMID: 38891818 PMCID: PMC11171499 DOI: 10.3390/ijms25115630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/27/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024] Open
Abstract
In eutocic labor, the autonomic nervous system is dominated by the parasympathetic system, which ensures optimal blood flow to the uterus and placenta. This study is focused on the detection of the quantitative presence of catecholamine (C) neurofibers in the internal uterine orifice (IUO) and in the lower uterine segment (LUS) of the pregnant uterus, which could play a role in labor and delivery. A total of 102 women were enrolled before their submission to a scheduled cesarean section (CS); patients showed a singleton fetus in a cephalic presentation outside labor. During CS, surgeons sampled two serial consecutive full-thickness sections 5 mm in depth (including the myometrial layer) on the LUS and two randomly selected samples of 5 mm depth from the IUO of the cervix. All histological samples were studied to quantify the distribution of A nerve fibers. The authors demonstrated a significant and notably higher concentration of A fibers in the IUO (46 ± 4.8) than in the LUS (21 ± 2.6), showing that the pregnant cervix has a greater concentration of A neurofibers than the at-term LUS. Pregnant women's mechanosensitive pacemakers can operate normally when the body is in a physiological state, which permits normal uterine contractions and eutocic delivery. The increased frequency of C neurofibers in the cervix may influence the smooth muscle cell bundles' activation, which could cause an aberrant mechano-sensitive pacemaker activation-deactivation cycle. Stressful circumstances (anxiety, tension, fetal head position) cause the sympathetic nervous system to become more active, working through these nerve fibers in the gravid cervix. They might interfere with the mechano-sensitive pacemakers, slowing down the uterine contractions and cervix ripening, which could result in dystocic labor.
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Affiliation(s)
- Antonio Malvasi
- 1st Unit of Gynecology and Obstetrics, Department of Interdisciplinary Medicine (DIM), University of Bari (BA), 70124 Bari, Italy; (A.M.); (G.M.B.); (E.C.); (E.D.N.); (G.R.D.); (M.D.)
| | - Giorgio Maria Baldini
- 1st Unit of Gynecology and Obstetrics, Department of Interdisciplinary Medicine (DIM), University of Bari (BA), 70124 Bari, Italy; (A.M.); (G.M.B.); (E.C.); (E.D.N.); (G.R.D.); (M.D.)
| | - Ettore Cicinelli
- 1st Unit of Gynecology and Obstetrics, Department of Interdisciplinary Medicine (DIM), University of Bari (BA), 70124 Bari, Italy; (A.M.); (G.M.B.); (E.C.); (E.D.N.); (G.R.D.); (M.D.)
| | - Edoardo Di Naro
- 1st Unit of Gynecology and Obstetrics, Department of Interdisciplinary Medicine (DIM), University of Bari (BA), 70124 Bari, Italy; (A.M.); (G.M.B.); (E.C.); (E.D.N.); (G.R.D.); (M.D.)
| | | | - Alessandro Favilli
- Department of Medicine and Surgery, Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132 Perugia, Italy; (A.F.); (P.T.Q.)
| | - Paola Tiziana Quellari
- Department of Medicine and Surgery, Perugia Medical School, University of Perugia, Piazza Lucio Severi 1, 06132 Perugia, Italy; (A.F.); (P.T.Q.)
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via dell’Elce di Sotto 8, 06132 Perugia, Italy; (P.S.); (B.F.)
- ASST Grande Ospedale Metropolitano Niguarda, 20162 Milano, Italy
| | - Paola Sabbatini
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via dell’Elce di Sotto 8, 06132 Perugia, Italy; (P.S.); (B.F.)
| | - Bernard Fioretti
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via dell’Elce di Sotto 8, 06132 Perugia, Italy; (P.S.); (B.F.)
| | | | - Gianluca Raffaello Damiani
- 1st Unit of Gynecology and Obstetrics, Department of Interdisciplinary Medicine (DIM), University of Bari (BA), 70124 Bari, Italy; (A.M.); (G.M.B.); (E.C.); (E.D.N.); (G.R.D.); (M.D.)
| | - Miriam Dellino
- 1st Unit of Gynecology and Obstetrics, Department of Interdisciplinary Medicine (DIM), University of Bari (BA), 70124 Bari, Italy; (A.M.); (G.M.B.); (E.C.); (E.D.N.); (G.R.D.); (M.D.)
| | - Giuseppe Trojano
- Department of Maternal and Child, Madonna delle Grazie Hospital ASM, 75100 Matera, Italy;
| | - Andrea Tinelli
- Department of Gynaecology and Obstetrics, CERICSAL (CEntro di RIcerca Clinico SALentino), “Veris delli Ponti Hospital”, 73020 Lecce, Italy
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Baldini GM, Lot D, Malvasi A, Di Nanni D, Laganà AS, Angelucci C, Tinelli A, Baldini D, Trojano G. Isthmocele and Infertility. J Clin Med 2024; 13:2192. [PMID: 38673465 PMCID: PMC11050579 DOI: 10.3390/jcm13082192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/29/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Isthmocele is a gynecological condition characterized by a disruption in the uterine scar, often associated with prior cesarean sections. This anatomical anomaly can be attributed to inadequate or insufficient healing of the uterine wall following a cesarean incision. It appears that isthmocele may impact a woman's quality of life as well as her reproductive capacity. The incidence of isthmocele can range from 20% to 70% in women who have undergone a cesarean section. This review aims to sum up the current knowledge about the effect of isthmocele on fertility and the possible therapeutic strategies to achieve pregnancy. However, currently, there is not sufficiently robust evidence to indicate the need for surgical correction in all asymptomatic patients seeking fertility. In cases where surgical correction of isthmocele is deemed necessary, it is advisable to evaluate residual myometrial thickness (RMT). For patients with RMT >2.5-3 mm, hysteroscopy appears to be the technique of choice. In cases where the residual tissue is lower, recourse to laparotomic, laparoscopic, or vaginal approaches is warranted.
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Affiliation(s)
- Giorgio Maria Baldini
- MOMO’ FertiLIFE, IVF Clinic, 76011 Bisceglie, Italy
- Obstetrics and Gynecology Unit, Department of Biomedical Sciences and Human Oncology, University of Bari “Aldo Moro”, Piazza Giulio Cesare 11, 70124 Bari, Italy;
| | - Dario Lot
- MOMO’ FertiLIFE, IVF Clinic, 76011 Bisceglie, Italy
| | - Antonio Malvasi
- Obstetrics and Gynecology Unit, Department of Biomedical Sciences and Human Oncology, University of Bari “Aldo Moro”, Piazza Giulio Cesare 11, 70124 Bari, Italy;
| | - Doriana Di Nanni
- Pathology Unit, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari “Aldo Moro”, 70125 Bari, Italy
| | - Antonio Simone Laganà
- Unit of Obstetrics and Gynecology, “Paolo Giaccone” Hospital, Department of Health Promotion, Mother and Childcare, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy;
| | - Cecilia Angelucci
- Gynecology and Obstetrics Clinic, University of Sassari, 07100 Sassari, Italy;
| | - Andrea Tinelli
- Department of Gynaecology and Obstetrics, “Veris Delli Ponti” Hospital, and CERICSAL (Centro di RIcerca Clinico SALentino), “Veris delli Ponti Hospital”, 73020 Lecce, Italy;
| | | | - Giuseppe Trojano
- Department of Maternal and Child, Gynecologic Oncology Unit, IRCCS Istituto Tumori “Giovanni Paolo II”, 70124 Bari, Italy;
- Madonna Delle Grazie Hospital ASM, 75100 Matera, Italy
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Prolonged Dystocic Labor in Neuraxial Analgesia and the Role of Enkephalin Neurotransmitters: An Experimental Study. Int J Mol Sci 2023; 24:ijms24043767. [PMID: 36835178 PMCID: PMC9962106 DOI: 10.3390/ijms24043767] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
The investigation studied the enkephalinergic neuro fibers (En) contained in the Lower Uterine Segment (LUS) during the prolonged dystocic labor (PDL) with Labor Neuraxial Analgesia (LNA). PDL is generally caused by fetal head malpositions in the Occiput Posterior Position (OPP), Persistent Occiput Posterior Position (POPP), in a transverse position (OTP), and asynclitism (A), and it is detected by Intrapartum Ultrasonography (IU). The En were detected in the LUS samples picked up during cesarean section (CS) of 38 patients undergoing urgent CS in PDL, compared to 37 patients submitted to elective CS. Results were statistically evaluated to understand the differences in En morphological analysis by scanning electron microscopy (SEM) and by fluorescence microscopy (FM). The LUS samples analysis showed an important reduction in En in LUS of CS for the PDL group, in comparison with the elective CS group. The LUS overdistension, by fetal head malpositions (OPP, OTP, A) and malrotations, lead to dystocia, modification of vascularization, and En reduction. The En reduction in PDL suggests that drugs used during the LNA, usually local anesthetics and opioids, cannot control the "dystocic pain", that differs from normal labor pain. The IU administration in labor and the consequent diagnosis of dystocia suggest stopping the numerous and ineffective top-up drug administration during LNA, and to shift the labor to operative vaginal delivery or CS.
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Submucous Fibroids, Fertility, and Possible Correlation to Pseudocapsule Thickness in Reproductive Surgery. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2804830. [PMID: 30250847 PMCID: PMC6140098 DOI: 10.1155/2018/2804830] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 06/24/2018] [Indexed: 11/18/2022]
Abstract
Background and Objectives Fibroids are related to infertility. Fibroid pseudocapsule is a neurovascular bundle surrounding leiomyomas rich of neurofibers involved in myometrial biology. Authors evaluated, by a case-control study, the fibroid pseudocapsule (FP) thickness by ultrasound (US) and the histological measurements, according to uterine location of fibroids. Methods 137 consecutive patients undergoing hysterectomy for uterine myomas were enrolled and 200 myomas were evaluated. Before surgery, patients underwent an ultrasound (US) investigation to evaluate the number, the size, and the location of fibroids. After surgery, myoma-pseudocapsule-myometrium specimens were measured and evaluated by a single expert pathologist. Both US and histological data were collected and statistically analyzed. Results Our results confirm the relevant difference of FP thickness, particularly represented under the endometrium for submucous LMs. FPs near the endometrial cavity were considerably thicker than those of both intramural fibroids and subserous fibroids measured by US (P=0.0001) and histology (P=0.0001). A clear cut-off measurement at 2 mm (P=0.0001) was found between endometrial FPs and all other FPs for either US or histology measurements. Conclusion The thickness of FP is considerably higher near the endometrial cavity when compared to those of both intramural and subserous LMs, suggesting a potential role either in fertility or in myometrial healing.
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Risk Factors for the Completion of the Cold Loop Hysteroscopic Myomectomy in a One-Step Procedure: A Post Hoc Analysis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:8429047. [PMID: 29888280 PMCID: PMC5985071 DOI: 10.1155/2018/8429047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 03/31/2018] [Indexed: 01/01/2023]
Abstract
Introduction The aim of the study was to analyze which variables influenced the completion of a cold loop hysteroscopic myomectomy in a one-step procedure in a large cohort of patients. Materials and Methods A retrospective cohort study of 1434 cold loop resectoscopic myomectomies consecutively performed. The study population was divided into two groups according to the number of procedures needed to accomplish the treatment. Variables influencing the completion of hysteroscopic myomectomy in a one-step procedure were investigated. Results A total of 1434 resections were performed and 1690 myomas in total were removed. The procedure was accomplished in a one-step procedure in 1017 patients (83.7%), whereas 198 women (16.3%) needed a multiple-step procedure. The multivariate analysis showed that the size, the number of myomas, and the age of patients were significantly correlated with the risk of a multiple-step procedure. No correlation was revealed with the grading of myomas, parity, and the use of presurgical GnRH-agonist therapy. Conclusions In case of multiple fibroids, the intramural development of submucous myomas did not influence the completion of cold loop hysteroscopic myomectomy in a one-step procedure. The size of myomas and the age of patients were significantly correlated with the need to complete the myomectomy in a multiple-step procedure.
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Tinelli A, Mynbaev OA, Mettler L, Hurst BS, Pellegrino M, Nicolardi G, Kosmas I, Malvasi A. A combined ultrasound and histologic approach for analysis of uterine fibroid pseudocapsule thickness. Reprod Sci 2014; 21:1177-86. [PMID: 24879045 DOI: 10.1177/1933719114537719] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Authors investigated 75 patients with uterine myomas, appraising whether fibroid pseudocapsule (FP) thickness varies depending on fibroid location, by a prospective cohort trial (level of evidence II-2) settled in University-affiliated Hospitals. Uteri were scanned via bidimensional and power Doppler ultrasound (US) to map the fibroids and record the FP thickness, prior to hysterectomy for symptomatic uterine fibroids. After hysterectomy, FP specimens were sampled and analyzed by pathologists. Ultrasound and histology data were matched. Pseudocapsule thickness of 108 fibroids was measured: subserosal fibroids (SSFs), intramural fibroids (IMFs), and fibroids near the endometrial cavity (FEC). The FEC's pseudocapsules were considerably thicker than those of IMF and SSF measured by US and histology (P = .001). A clear cutoff existed between FEC pseudocapsule thickness and all other pseudocapsules, with significant differences observed at 2 mm (P = .001). Similarity between histological and US measurements was observed only with IMF pseudocapsules, whereas FEC or SSF showed significant differences. The pseudocapsule of fibroids is considerably thicker near the endometrial cavity when compared to those of both IMFs and SSFs. Since fibroids closest to the endometrial cavity are the most involved in fertility and infertility and FP is considerably thicker near the endometrial cavity, it is possible to hypothesize an involvement of FP of fibroid near the endometrium since FP contains many neuropeptides and neurotransmitters that are physiologically active, even if these data may take on a broader meaning in a study on a larger number of patients.
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Affiliation(s)
- Andrea Tinelli
- Department of Obstetrics and Gynecology, Division of Experimental Endoscopic Surgery, Imaging, Technology and Minimally Invasive Therapy, Lecce, Italy
| | - Ospan A Mynbaev
- Moscow Institute of Physics & Technology, State University, Moscow, Russia Laboratory of pilot projects Moscow State University of Medicine & Dentistry, Moscow, Russia Department of ObGyn and Reproductive Medicine, Peoples' Friendship University of Russia, Moscow, Russia
| | - Liselotte Mettler
- Department of Obstetrics and Gynaecology, Kiel School of Gynaecological Endoscopy, University, Hospitals Schleswig-Holstein, Campus Kiel, Germany
| | - Brad S Hurst
- Assisted Reproduction Center, Carolinas Medical Center, Charlotte, NC, USA
| | | | - Giuseppe Nicolardi
- Human Anatomy and Neuroscience Unit, University of Salento, Lecce, Italy
| | - Ioannis Kosmas
- Department of Obstetrics and Gynecology, University of Ioannina, Ioannina, Greece
| | - Antonio Malvasi
- Department of Obstetric & Gynecology, Santa Maria Hospital, Bari, Italy
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Jobling P, O'Hara K, Hua S. Female reproductive tract pain: targets, challenges, and outcomes. Front Pharmacol 2014; 5:17. [PMID: 24592238 PMCID: PMC3923189 DOI: 10.3389/fphar.2014.00017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Accepted: 01/27/2014] [Indexed: 12/26/2022] Open
Abstract
Pain from the female reproductive tract (FRT) is a significant clinical problem for which there are few effective therapies. The complex neuroanatomy of pelvic organs not only makes diagnosis of pelvic pain disorders difficult but represents a challenge to development of targeted therapies. A number of potential therapeutic targets have been identified on sensory neurons supplying the FRT but our knowledge on the basic neurophysiology of these neurons is limited compared with other viscera. Until this is addressed we can only guess if the new experimental therapies proposed for somatic, gastrointestinal, or bladder pain will translate to the FRT. Once suitable therapeutic targets become clear, the next challenge is drug delivery. The FRT represents a promising system for topical drug delivery that could be tailored to act locally or systemically depending on formulation. Development of these therapies and their delivery systems will need to be done in concert with more robust in vivo and in vitro models of FRT pain.
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Affiliation(s)
- Phillip Jobling
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan NSW, Australia
| | - Kate O'Hara
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan NSW, Australia
| | - Susan Hua
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan NSW, Australia
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Fan M, Su C, Lu L, Qin JC, Li P, Yuan JY. Ultrasonic diagnosis and vasoactive substances examination in patients with cirrhosis. ASIAN PAC J TROP MED 2014; 7:329-32. [PMID: 24507687 DOI: 10.1016/s1995-7645(14)60050-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/15/2014] [Accepted: 02/15/2014] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE To investigate hemodynamic change of patients with cirrhosis by using Color Doppler ultrasound technique and to explore the significance of change in the content of vasoactive substances-plasma endothelin-1 (ET-1) and calcitonin gene-related peptide (CGRP). METHODS A total of 178 cases with cirrhosis were regarded as study groups, and were divided into three degrees: A, B and C according to child-pugh and meanwhile 60 cases were regarded as normal control group. Portal vein and splenic vein of patients were explored by adopting Color Doppler ultrasound technique, related indexes were recorded and the blood flow as well as their ration in the two groups was calculated. Radio immunoassay was adopted to detect the content of plasma ET-1 and CGRP in both study group and contrast group. RESULTS Compared with the healthy cases in the contrast group, there was abnormal hemodynamics in the system of portal vein of patients with cirrhosis and the content of plasma ET-1 and CGRP was increased obviously. In the Child-Pugh liver function grades, the content of ET-1 and CGRP was increased as the degree of cirrhosis became more and more serious. There was no significant difference in the comparison between those without ascites and those in contrast group (P>0.05), the content of plasma ET-1 and CGRP in patients without ascites was increased remarkably. Besides, there was positive correlation between the content of plasma ET-1 and CGRP and Dpv, Dsv and Qsv. CONCLUSION Detection of abnormal hemodynamics of portal vein and splenic vein by Color Doppler ultrasound technique can be one of the means for diagnosis of hypertension. Plasma ET-1 and CGRP of patients with cirrhosis reflect the serious degree of the damage in live function and play an important role in the formation and development of portal hypertension.
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Affiliation(s)
- Mei Fan
- Department of Sonography, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chun Su
- Department of Gynaecology and Obstetrics, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lin Lu
- Department of Radiology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jun-Chang Qin
- Department of Sonography, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Pei Li
- Department of Pathophysiology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.
| | - Jia-Ying Yuan
- Department of Sonography, the Affiliated Hospital of Henan Military Region, Zhengzhou, China
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Malvasi A, Dell'Edera D, Cavallotti C, Creanza A, Pacella E, Di Renzo G, Mynbaev O, Tinelli A. Inflammation and Neurotransmission of the Vescico-Uterine Space in Cesarean Sections. EUR J INFLAMM 2013. [DOI: 10.1177/1721727x1301100125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Collagen IV and laminin play a key role in regulating stiffness, elasticity and flexibility of the vescico-uterine space (VUS) tissue. The neurotensin (NT), the neuropeptide tyrosine (NPY) and the protein gene product 9.5 (PGP 9.5) possessing vasorelaxation and tissue vascularization activities, play key roles in cervical ripening, scar innervations and pain control. We propose that the integrity of these substances in VUS tissue is compromised after Cesarean section (CS), since wound healing disturbances and pelvic pain, as well as pregnancy and delivery complications, are related with lower uterine segment dysfunctions after CS. Therefore, the contents of collagen IV, laminin, NT, NPY and PGP 9.5 nerve fibres from the VUS tissue samples obtained during the first CS and the repeated CS were comparatively studied. VUS specimens were collected from 104 patients during CS and evaluated by immunohistochemistry. Collagen IV and laminin were mostly found in the vascular membrane bounds and their images were quantitatively evaluated by Quantimet Leica analyzer software. Differences of collagen IV, laminin, NT, NPY and PGP 9.5 values in VUS tissue between the first CS and the repeat CS samples were calculated by Student's Mest. Reduced laminin and increased collagen IV values were observed in the VUS scar tissue after the repeated CS in comparison with those of VUS intact tissue obtained during the first CS. Significantly higher values of nerve fibres, containing NT, NPY and PGP 9.5 were registered in intact VUS tissue samples, respectively 5±0.7, 7±0.6 and 5±0.9 CU, than those of VUS scar tissue samples obtained during the repeated CS, respectively 3±0.6,2±0.4 and 3±0.7 CU (p<0.05). The authors observed increased collagen IV and reduced laminin values after the repeated CS which might be the key signs of inflammatory damage of VUS scar tissue by CS. These findings were strengthened by the registration of decreased NT, NPY and PGP 9.5 values in the same samples, which are important neurotransmitters and are responsible for optimal wound healing, pain control and lower uterine segment functions.
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Affiliation(s)
- A. Malvasi
- Department of Obstetric and Gynecology, Santa Maria Hospital, Bari, Italy
| | - D. Dell'Edera
- Unit of Cytogenetic and Molecular Genetics, Madonna delle Grazie Hospital, Matera, Italy
| | - C. Cavallotti
- Department of Human Anatomy, University Sapienza, Rome, Italy
| | - A. Creanza
- Department of Obstetric and Gynecology, Santa Maria Hospital, Bari, Italy
| | - E. Pacella
- Department of Ophthalmology, Sapienza University, Rome, Italy
| | - G.C. Di Renzo
- Department of Obstetric ns Gynecology, University of Perugia, Italy
| | - O.A. Mynbaev
- Experimental Researches and Modelling Division, Moscow State University of Medicine and Dentistry, Department of Obstetrics, Gynecology and Reproductive Medicine, Peoples' Friendship University of Russia, Moscow, Russia
| | - A. Tinelli
- Department of Obstetrics and Gynecology, Division of Experimental Endoscopic Surgery, Imaging, Technology and Minimally Invasive Therapy, Lecce, Italy
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Malvasi A, Tinelli A, Cavallotti C, Morroni M, Tsin DA, Nezhat C, Stark M, Mettler L. Distribution of substance P (SP) and vasoactive intestinal peptide (VIP) in pseudocapsules of uterine fibroids. Peptides 2011; 32:327-32. [PMID: 21167238 DOI: 10.1016/j.peptides.2010.10.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 10/06/2010] [Accepted: 10/07/2010] [Indexed: 12/28/2022]
Abstract
The authors examined the presence of Substance P (SP) and Vasoactive Intestinal Polypeptide (VIP) and their related fibers in the pseudocapsule of uterine fibroids (PUF) and in normal myometrium (NM) during myomectomies in 57 non-pregnant women. 4 samples were removed from the normal myometrium (NM) and from PUF. The samples were sent for histological and immune-fluorescent investigations. SP and VIP values were found non-significantly higher in PUF than in NM: SP values were 10.2±0.1 conventional units (C.U.) in PUF at the fundus of the uterus (FU) vs. 8.1±0.6C.U. of NM in the FU (p>0.05), and SP values were 25.1±0.9C.U. in PUF in the uterine body (UB) compared to. 23.2±1.4C.U. of NM in the myometrium of the UB (p>0.05). VIP values were 11.5±0.9C.U. in the PUF in FU compared to 9.8±1.4C.U. of NM in the FU (p>0.05), and VIP values were 33.9±3.9C.U. in the PUF in the UB vs. 32.6±4.8C.U. of the NM in the UB (p>0.05). These findings show that SP and VIP neurofibers are present in the fibroid pseudocapsule, similar to the values in the normal myometrium of a non-pregnant uterus. An intracapsular myoma excision which respects the pseudocapsule permits a physiological healing process of the uterine scar, due to a neurotransmitter sparing at the hysterotomic site. In women planning pregnancy, the myomectomy should be preferably performed respecting the pseudocapsule in order to preserve the neurotransmission.
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Affiliation(s)
- Antonio Malvasi
- Department of Obstetric & Gynecology, Santa Maria Hospital, Bari, Italy
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