12 research outputs found
Heavy metals in follicular fluid affect the ultrastructure of the human mature cumulus-oocyte complex
It is known that exposure to heavy metals such as lead (Pb) and cadmium (Cd) has several
adverse effects, particularly on the human reproductive system. Pb and Cd have been associated
with infertility in both men and women. In pregnant women, they have been associated with
spontaneous abortion, preterm birth, and impairment of the development of the fetus. Since these
heavy metals come from both natural and anthropogenic activities and their harmful effects have
been observed even at low levels of exposure, exposure to them remains a public health issue,
especially for the reproductive system. Given this, the present study aimed to investigate the
potential reproductive effects of Pb and Cd levels in the follicular fluid (FF) of infertile women and
non-smokers exposed to heavy metals for professional reasons or as a result of living in rural areas
near landfills and waste disposal areas in order to correlate the intrafollicular presence of these
metals with possible alterations in the ultrastructure of human cumulus-oocyte complexes (COCs),
which are probably responsible for infertility. Blood and FF metals were measured using atomic
Citation: Miglietta, S.; Cristiano, L.;
Battaglione, E.; Macchiarelli, G.;
Nottola, S.A.; De Marco, M.P.;
Costanzi, F.; Schimberni, M.;
Colacurci, N.; Caserta, D.; Familiari,
G. Heavy Metals in Follicular Fluid
Affect the Ultrastructure of the
Human Mature Cumulus-Oocyte
Complex. Cells 2023, 12, 2577.
https://doi.org/10.3390/cells12212577
Academic Editor: Elena Llano
Received: 11 October 2023
Revised: 30 October 2023
Accepted: 31 October 2023
Published: 5 November 2023
Copyright: © 2023 by the authors.
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license
(https://creativecommons.org/license
s/by/4.0/).
Cells 2023, 12, 2577 2 of 24
absorption spectrometry. COCs corresponding to each FF analyzed were subjected to ultrastructural
analyses using transmission electron microscopy. We demonstrated for the first time that
intrafollicular levels of Pb (0.66 µg/dL–0.85 µg/dL) and Cd (0.26 µg/L–0.41 µg/L) could be associated
with morphological alterations of both the oocyte and cumulus cells’ (CCs) ultrastructure. Since
blood Cd levels (0.54 µg/L–1.87 µg/L) were above the current reference values established by the
guidelines of the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental
Protection Agency (EPA) (0.4 µg/L), whereas blood Pb levels (1.28 µg/dL–3.98 µg/dL) were below
the ATSDR reference values (≤5 µg/dL), we believe that these alterations could be due especially to
Cd, even if we cannot exclude a possible additional effect of Pb. Our results highlighted that oocytes
were affected in maturation and quality, whereas CCs showed scarcely active steroidogenic
elements. Regressing CCs, with cytoplasmic alterations, were also numerous. According to Cd’s
endocrine-disrupting activity, the poor steroidogenic activity of CCs might correlate with delayed
oocyte cytoplasmic maturation. So, we conclude that levels of heavy metals in the blood and the FF
might negatively affect fertilization, embryo development, and pregnancy, compromising oocyte
competence in fertilization both directly and indirectly, impairing CC steroidogenic activity, and
inducing CC apoptosis
Site effect studies following the 2016 Mw 6.0 Amatrice Earthquake (Italy): the Emersito Task Force activities
On August 24, 2016, at 01:36 UTC a MW 6.0 earthquake struck an extensive area of the Central Apennines (Italy) be-tween the towns of Norcia and Amatrice. Due to the mainshock magnitude and the widespread damaging level of build-ings in the epicentral area, the Emersito task force has been mobilized by the Istituto Nazionale di Geofisica e Vulcanologia (INGV). The aim of Emersito is to carry out and coordinate the monitoring of local site effects, caused by geological and geomorphological settings. During the first days of the seismic emergency, Emersito installed a tempo-rary seismic network for site effect studies at 4 municipalities close to the epicentral area (Amandola, Civitella del Tronto, Montereale and Capitignano), using 22 stations equipped with both velocimetric and accelerometric sensors. The selection of the sites where stations have been installed was mainly driven by the proximity to the epicentral area (without interfere with the rescue operations) and by peculiar geologic and geomorphologic settings (topographic irregu-larities, fault zones, alluvial plains). Preliminary analyses performed on ambient noise and aftershocks signals show that directional amplification effects may have occurred at stations installed on the top of topographic irregularities. We also observed the lengthening and amplification of the seismograms and a variability of the peaked frequency across the sedi-mentary basin between Montereale and Capitignano, probably related to a different thickness of the deposits. Further analyses are necessary to assess the correlation with surface geology.Published4T. Sismologia, geofisica e geologia per l'ingegneria sismica1SR. TERREMOTI - Servizi e ricerca per la SocietĂ 1IT. Reti di monitoraggioJCR Journa
Fertility specialists’ views, behavior, and attitudes towards the use of endometrial scratching in Italy
Background: Endometrial scratching (ES) or injury is intentional damage to the endometrium performed to improve reproductive outcomes for infertile women desiring pregnancy. Moreover, recent systematic reviews with meta-analyses and randomized controlled trials demonstrated that ES is not effective, data on the safety are limited, and it should not be recommended in clinical practice. The aim of the current study was to assess the view and behavior towards ES among fertility specialists throughout infertility centers in Italy, and the relationship between these views and the attitudes towards the use of ES as an add-on in their commercial setting.
Methods: Online survey among infertility centers, affiliated to Italian Society of Human Reproduction (SIRU), was performed using a detailed questionnaire including 45 questions with the possibility to give "closed" multi-choice answers for 41 items and "open" answers for 4 items. Online data from the websites of the infertility centers resulting in affiliation with the specialists were also recorded and analyzed. The quality of information about ES given on infertility centers websites was assessed using a scoring matrix including 10 specific questions (scored from 0 to 2 points), and the possible scores ranged from 0 to 13 points ('excellent' if the score was 9 points or more, 'moderate' if the score was between 5 and 8, and 'poor' if it was 4 points or less).
Results: The response rate was of 60.6% (43 questionnaires / 71 infertility SIRU-affiliated centers). All included questionnaires were completed in their entirety. Most physicians (~ 70%) reported to offer ES to less than 10% of their patients. The procedure is mainly performed in the secretory phase (69.2%) using pipelle (61.5%), and usually in medical ambulatory (56.4%) before IVF cycles to improve implantation (71.8%) without drugs administration (e.g., pain drugs, antibiotics, anti-hemorrhagics, or others) before (76.8%) or after (64.1%) the procedure. Only a little proportion of infertility centers included in the analysis proposes formally the ES as an add-on procedure (9.3%), even if, when proposed, the full description of the indications, efficacy, safety, and costs is never addressed. However, the overall information quality of the websites was generally "poor" ranging from 3 to 8 and having a low total score (4.7 ± 1.6; mean ± standard deviation).
Conclusions: In Italy, ES is a procedure still performed among fertility specialists for improving the implantation rate in IVF patients. Moreover, they have a poor attitude in proposing ES as an add-on in the commercial setting
Auditory Outcome after Cochlear Implantation in Children with DFNB7/11 Caused by Pathogenic Variants in TMC1 Gene
Non-syndromic hereditary hearing loss is characterized by extreme genetic heterogeneity. So far, more than 100 pathogenic or likely pathogenic variants in TMC1 gene have been reported in patients with autosomal recessive hearing loss (HL) DFNB7/11. The prevailing auditory phenotype of individuals with DFNB7/11 is congenital, profound, bilateral HL, but the functional outcome after cochlear implantation (CI) described in the literature is variable. The objective of this work is to evaluate the auditory outcome after CI in pediatric patients with DFNB7/11, born to non-consanguineous parents
Cochlear implant in vestibular schwannomas: long-term outcomes and critical analysis of indications
Purpose: To describe our institutional experience in cochlear implantation after vestibular schwannoma (VS) resection, and compare the audiological outcomes between sporadic and neurofibromatosis type 2 (NF2) VS sub-cohorts of patients, and in relation to preoperative contralateral hearing. Methods: Seventeen patients (8 sporadic and 9 NF2-associated VSs) who had undergone VS resection and cochlear implant (CI) were analyzed retrospectively. Audiological outcomes at 24 months were correlated with preoperative clinical variables. The results according to VS type (sporadic vs. NF2-associated) and contralateral hearing (impaired vs. normal) were compared. Results: Fourteen CIs were actively used by the patients (77.8%). Twenty-four months after CI activation, the median postoperative PTA (pure tone average) was 45.6 dB nHL and a measurable WRS (Word Recognition Score) was achieved by 44.4% of patients (median WRS = 40%). The median postoperative PTA in the implanted ear resulted better in the group with an impaired contralateral hearing (36.3 dB nHL vs. 78.8 dB nHL, p = 0.019). Good preoperative contralateral hearing status (A-B classes of AAO-HNS) was a negative prognostic factor for CI performance on open-set discrimination (OR = 28.0, 95% CI 2.07-379.25, p = 0.012). Conclusions: CI is a viable rehabilitative option for patients with sporadic or NF2-associated VS. A good contralateral hearing adversely affects CI outcome and should be taken into consideration for patients' selection and rehabilitation programs
Consumo di luogo. Neoliberismo nel disegno di legge urbanistica dell'Emilia-Romagna
La scrittura della legge urbanistica della Regione Emilia-Romagna \ue8 stata oggetto di attenta osservazione da parte di un "intellettuale collettivo" posizionato criticamente rispetto ad obbiettivi e metodi che la legge introduce nelle pratiche urbanistiche regionali. Il libro, che raccoglie il contributo di urbanisti, storici dell\u2019arte, giuristi, contiene analisi tecnico-giuridiche del DdL, comparazioni con le diverse legislazioni regionali e, infine, aperture concettuali capaci di ridefinire una prospettiva urbanistica che ricomprenda il dato sociale, politico e ambientale. Contributi di: Ilaria Agostini, Piergiovanni Alleva, Paolo Berdini, Piero Bevilacqua, Paola Bonora, Pier Luigi Cervellati, Sergio Caserta, Paolo Dignatici, Anna Marina Foschi, Giovanni Losavio, Anna Marson, Tomaso Montanari, Cristina Quintavalla, Ezio Righi, Piergiorgio Rocchi, Edoardo Salzano
Legge urbanistica in Emilia Romagna: territorio consegnato alla speculazione fondiaria
All\u2019indomani dell\u2019approvazione presso l\u2019Assemblea legislativa della proposta di legge "Disciplina regionale sulla tutela e l\u2019uso del territorio" n. 4223, un gruppo di urbanisti, tecnici, intellettuali, esprime preoccupazione per i contenuti di un atto legislativo che rischia di imprimere una svolta deregolativa capace di ledere l\u2019autonomia comunale in materia di urbanistica e pianificazione del territorio
Modello emiliano al contrario: la città come una public-company
Se la citt\ue0 \ue8 considerata come una \u201cpublic company\u201d ad azionariato diffuso, dove i cittadini sono i \u201cproprietari della citt\ue0\u201d, la rigenerazione urbana \u2013 deprivata di carattere progressivo in senso sociale \u2013 diventa uno strumento di \u201cconvincimento\u201d dei cittadini-proprietari-azionisti a \u201cinvestire sul patrimonio di cui sono proprietari\u201d, diventa il core business di un nuovo ciclo edilizio. La casa passa da \u201cdiritto\u201d a oggetto di investimento. L'articolo esce in prossimit\ue0 della discussione del DdL 3224 "sulla tutela e l'uso del territorio" in Assemblea legislativa della Regione Emilia-Romagna