Bentonite SDBS-loaded composite for methylene blue removal from wastewater: An experimental and theoretical investigation.

This study addresses the urgent need for practical solutions to industrial water contamination. Utilizing Algerian Bentonite as an adsorbent due to its regional prevalence, we focused on the efficiency of the Bentonite/Sodium dodecylbenzene sulfonate (SDBS) matrix in Methylene Blue (MB) removal. The zero-charge point and IR spectroscopy characterized the adsorbent.

Outcome of percutaneous pedicle screw fixation for traumatic thoracic and lumbar fractures -six years experience.

Objectives: This study discusses the experience at our centre with treating traumatic thoracolumbar fractures using percutaneous pedicle screw fixation.

Methods: We reviewed the case notes and imaging retrospectively between January 2013 and June 2019.

Results: A total of 257 patients were included, 123 males and 134 females aged between 17 and 70; the mean age was 47.

Outcome of Surgical Treatment for Metastatic Spinal Cord Compression: A Single-Center Retrospective Study.

 The spinal column is one of the most prevalent regions for metastasis, with an increasing frequency of spinal metastases. Spinal cord metastatic tumor damages the vertebral body, weakens the spinal support, and exerts mass effect on the spinal cord. Overzealous surgical intervention does not provide any additional benefit in most of the spinal metastasis due to shorter life expectancy.

Predictive factors for pregnancy after controlled ovarian stimulation and intrauterine insemination: A retrospective analysis of 4146 cycles.

Background: The variability in indications and low rate of pregnancy compared to IVF have led many authors to dismiss IUI and offer IVF first-line instead.

Objectives: To determine what are the predictive factors for clinical pregnancy (CP) and live birth (LB) in intrauterine insemination (IUI) cycles following controlled ovarian stimulation (COS).

Methods: Retrospective unicentric study, between January 2009 and December 2016.

Testicular Spermatozoa Are of Better Quality Than Epididymal Spermatozoa in Patients With Obstructive Azoospermia.

Objective: To assess sperm quality as a function of the sampling site (testis or epididymis) in obstructive azoospermia (OA).

Materials And Methods: DNA fragmentation rates in spermatozoa sampled from the testis and epididymis (from patients with different etiologies of OA) were assessed in a dUTP nick-end labeling assay.

Results: Twenty-one OA patients were included: 5 had congenital bilateral absence of the vas deferens, 8 had genital tract infections, and 8 had idiopathic OA.

Is There Any Benefit of Neuromonitoring During Descending and Thoracoabdominal Aortic Aneurysm Repair?

Objective: Paraplegia remains the most feared and a devastating complication after descending and thoracoabdominal aneurysm operative repair (DTA and TAAAR). Neuromonitoring, particularly use of motor-evoked potentials (MEPs), for this surgery has gained popularity. However, ambiguity remains regarding its use and benefit.

An apical left ventricular aneurysm rupture presenting as left breast mass 11 years after surgical repair.

Left ventricular (LV) pseudoaneurysm is a rare entity and, consequently, there is limited knowledge of the condition's natural history. The most frequent mode of presentation for LV pseudoaneurysm is heart failure with chest pain. However, the variable presentation of this condition requires a high index of suspicion for diagnosis.

Delayed aorto-right atrial fistula following percutaneous closure of atrial septal defect.

We present the case of a 27-year-old man who underwent percutaneous atrial septal defect (ASD) repair using the Amplatzer(®) (St Jude Medical, St Paul, MN, US) septal occluder (ASO). Six weeks later, he presented with heart failure and was found to have an aorto-right atrial fistulation. He required urgent surgical device explantation and repair of the existing ASD using a pericardial patch repair technique.

Imaging of Thoracic Intercostal Artery Rupture during the Propagation of a Type B Acute Aortic Syndrome.

The natural history of an intramural hematoma (IMH) has not been completely defined. This is a case report of a 63-year-old woman, in whom imaging reveals intercostal artery rupture during the process of expansion of an IMH in a Type B acute aortic syndrome. This case demonstrates that intercostal artery rupture may act as a precursor for the transformation of IMH to a classical dissection.

A Perspective on Natural History and Survival in Nonoperated Thoracic Aortic Aneurysm Patients.

There are many questions that remain unanswered in the understanding of the natural history of thoracic aortic aneurysm (TAA). This review will critically appraise the current published evidence on the natural history of TAA in nonoperated patients and their present rates of survival.

Follicular fluid protein content (FSH, LH, PG4, E2 and AMH) and polar body aneuploidy.

Purpose: Our objective was to identify a marker for oocyte aneuploidy in follicular fluid (FF) in women with an increased risk of oocyte aneuploidy after controlled ovarian hyperstimulation.

Materials And Methods: Three groups of oocytes were constituted for polar body screening by FISH (chromosomes 13, 16, 18, 21 and 22): Group 1, advanced maternal age (n = 156); Group 2, implantation failure (i.e.

Selection of normal spermatozoa with a vacuole-free head (x6300) improves selection of spermatozoa with intact DNA in patients with high sperm DNA fragmentation rates.

Intracytoplasmic morphologically selected sperm injection (IMSI, 6300× magnification with Nomarski contrast) of a normal spermatozoon with a vacuole-free head could improve the embryo's ability to grow to the blastocyst stage and then implant. However, the most relevant indications for IMSI remain to be determined. To evaluate the potential value of IMSI for patients with a high degree of sperm DNA fragmentation (n = 8), different types of spermatozoa were analysed in terms of DNA fragmentation.

Correlation between DNA defect and sperm-head morphology.

The utility of sperm DNA testing remains controversial. However, it may be helpful in couples with unexplained failures of multiple assisted reproductive techniques and/or recurrent abortions. This study analysed 10,400 spermatozoa of 26 patients for sperm-head morphology with high-magnification microscopy, DNA fragmentation and sperm chromatin decondensation.

Are zona pellucida laser drilling and polar body biopsy safe for in vitro matured oocytes?

Introduction: Preconception diagnosis requires first polar body biopsy. When the hole in the zona pellucida is made with a laser beam, heat propagation could, like the biopsy itself, be deleterious. Our aim was to evaluate the effect of this technique on human in vitro matured oocyte and embryo development.

Case report: Meiotic segregation in spermatozoa of a 46,X,t(Y;10)(q11.2;p15.2) fertile translocation carrier.

Translocations involving gonosomes are frequent in azoospermic patients and sometimes in oligozoospermic ones, conditions that lead to request for assisted reproduction treatment. This study reports an unexpectedly fertile 49-year-old man bearing a de-novo translocation 46,X,t(Y;10)(q11.2;q15.

Soluble HLA-G in IVF/ICSI embryo culture supernatants does not always predict implantation success: a multicentre study.

Several reports have described an association between the presence of soluble human leukocyte antigen G (sHLA-G) in human embryo culture supernatants (ES) and implantation success. However, not all studies agree with these findings. To further document this debate, a multicentre blinded study was performed to investigate, on a large number of IVF ES and ICSI ES, whether sHLA-G is a useful criterion for embryo selection before transfer.

Pronuclear morphology differs between women more than 38 and women less than 30 years of age.

Pronuclear morphology has been reported as a good tool for studying embryo development and euploidy. Comparing two groups of women with different aneuploidy risk, women more than 38 years old (n = 28) known to be at high risk of aneuploidy, and women under 30 years old (n = 35), this study investigated whether pronuclear morphology could be used routinely as an alternative to preimplantation genetic screening (PGS) in countries where PGS is prohibited. Pronuclear morphology was evaluated for 301 zygotes and related to embryo quality and pregnancy outcome.

Preconceptional diagnosis for Robertsonian translocation as an alternative to preimplantation genetic diagnosis in two situations: a pilot study.

Introduction: Preimplantation genetic diagnosis (PGD) is widely used for women heterozygous for a Robertsonian translocation. Preconceptional diagnosis (PCD), performed before fertilization, may be an alternative to PGD, especially in countries where PGD is restricted or prohibited, as in France. It could also give different information and clarify the influence of reproductive and obstetric history.

Sperm chromosome analysis of an infertile patient with a 95% mosaic r(21) karyotype and normal phenotype.

Objective: To examine sperm meiotic segregation in a man with mosaic ring chromosome 21.

Design: Case report.

Setting: Hospital departments of reproductive biology, cytogenetics, gynecology, and obstetrics.

Can intracytoplasmic morphologically selected sperm injection be used to select normal-sized sperm heads in infertile patients with macrocephalic sperm head syndrome?

Objective: To study the chromosomal content of spermatozoa selected by intracytoplasmic morphologically selected sperm injection (IMSI) in cases of macrocephalic sperm head syndrome.

Design: Case report.

Setting: Obstetrics, gynecology, urology, and reproductive biology departments.

Gamete cytogenetic study in couples with implantation failure: aneuploidy rate is increased in both couple members.

Purpose: Implantation failure is known to be associated with an increased risk of aneuploidy in embryos, a situation leading to a pre-implantation genetic screening, not allowed in different countries like France. Our aim was to evaluate the gamete aneuploidy incidence in this context, using first polar body and spermatozoa aneuploidy screening.

Methods: Three groups were considered: 11 couples with pregnancy obtained after IVF for female infertility (group 1); 20 couples with pregnancy obtained after IVF for male infertility (group 2); and 35 couples with implantation failure (group 3).

Stability of aneuploidy rate in polar bodies in two cohorts from the same patient.

The aim of this study was to evaluate the stability of the aneuploidy rate of the first polar body. Knowing the stability of the oocyte aneuploidy rate for each patient would allow the first analysis to be used as a prognostic tool for further attempts at intracytoplasmic sperm injection (ICSI). After a first unsuccessful ICSI attempt with preconceptional screening, 24 women underwent a second attempt.

Oocyte aneuploidy mechanisms are different in two situations of increased chromosomal risk: older patients and patients with recurrent implantation failure after in vitro fertilization.

Objective: To clarify the mechanisms underlying oocyte abnormalities in meiosis: meiotic nondisjunction of a whole chromosome or premature separation of sister chromatids in two situations of increased chromosomal risk.

Design: Preconception diagnosis by first polar-body analysis in two situations of increased chromosomal risk.

Setting: Departments of reproductive biology, cytogenetics, gynecology, and obstetrics.

How viable are zygotes in which the PN are still intact at 25 hours? Impact on the choice of embryo for transfer.

Objective: To evaluate the pertinence of kinetic observations of embryonic development 25 hours after IVF, with a view to optimizing the choice of embryos for transfer.

Design: Retrospective study of 471 cycles with embryo transfer.

Setting: University Hospital.

[Contribution of first polar body analysis to understanding of human aneuploidy mechanism].

In our species, reproduction failure rate is high. Clinical evidence is miscarriage where chromosomal origin was largely involved (66% of cases). The development of assisted reproduction techniques made possible to analyse unfertilized oocytes and preimplantation embryos.