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Graft‐versus‐host disease (GVHD) is a common complication of hematopoietic stem cell transplant, which is known to be mediated by cytotoxic T‐cell effectors and dysregulated inflammatory cytokines. Similarly, the lung injury observed in severe COVID‐19 cases appears to be related to a massive production of pro‐inflammatory cytokines. The selective JAK1/2 inhibitor ruxolitinib has shown promising results in the context of GVHD, and different trials are currently underway in patients with severe COVID‐19; nevertheless, no clinical observation of safety or efficacy of treatment with ruxolitinib in this context has been published yet. We describe a first case of severe COVID‐19 developed after hematopoietic stem cell transplantation in a patient with a concomitant chronic GVHD (cGVHD), in which a treatment with ruxolitinib was administered with good tolerance and positive outcome.

Background Even if it is supposed damage of repeated ART (assisted reproductive technology) cycles on oocyte pool, there is still no evidence in literature. Aim of the study is to investigate whether infertile women who undergo to several ART cycles can show a lower ovarian reserve measured by AMH (Anti-Mullerian hormone) levels. Methods The study includes 282 infertile women, between 18 and 42 years, and allocated into two groups: 159 women previously submitted to two or more ART cycles (group A) and 123 women never submitted naive to-ART cycles (group B). We tested whether AMH, FSH, LH and E2 levels were significantly different between the two groups, stratifying according to age. Results Regardless to the age ranges bands, the AMH in group A was statistically significant lower than in group B with a statistical significance (P=0.047). In particular women aged over 35 previously submitted to one or more ART cycles showed lower AMH levels, than those paired with age, which had never been treated with ART. Conclusions Despite the limitations of the study, our data demonstrate a reduced AMH levels in women aged over 35 previously submitted to two or more repeated ART-cycles compared to patients never treated before. The strength of this study is the actuality of the topic that has not been discussed before in detail.

Introduction The pituitary gland produces and secretes various hormones, fundamental in the regulation of endocrine function within the body, including metabolism, growth and development and reproduction

BACKGROUND The aim of this study was to compare 2D and 3D-sonohysterosalpingography (2D-3D-HyFoSy) with previous diagnostic laparoscopy in the diagnosis of tubal patency, and compare each procedure in terms of procedure's time, perceived pain and complication rate. METHODS We prospectively recruited infertile women, previously submitted to laparoscopy and randomly allocated into 2D-HyFoSy (group I) and 3D-HyFoSy (group II). We analyzed the results in term of sensitivity, specificity, positive predictive value and negative predictive value in tubal patency evaluation of both procedures in comparison with laparoscopy. RESULTS We enrolled 50 women, 25 in group I and 25 in group II. 2D-HyFoSy findings obtained in group I, were concordant with laparoscopy in 81% of cases, with a sensitivity of 80% and a specificity of 92%. In group II, a correspondence was present in 88% of examinations, with a sensitivity and specificity of 98% and 91.4% respectively. 3D-HyFoSy was found to be faster and less painful than 2D (P

Telomere dysfunction might generate genomic instability leading to the progression of myelodysplastic syndromes (MDS) into acute myeloid leukemia (AML). We investigated telomere length (TL), telomerase activity (TA) and hTERT, c-myc, mad1, and p53 expression in the bone marrow of patients with MDS (n=109), AML (n=47) and in controls (n=24). TL was lower in MDS patients than in controls (p0.001) and higher in L-MDS (low, intermediate-1 IPSS, p0.01) respect H-MDS (high, intermediate-2 IPSS, p0.01) patients. Mad-1 expression was higher in MDS patients than in controls (p0.01), c-myc expression was highest in AML and in H-MDS patients. Our results show that the telomere dynamics might be useful for stratifying patients according to a risk scoring system.

Myelodysplastic syndromes are heterogeneous myeloid neoplasms ranging from indolent conditions with a near-normal life expectancy to forms approaching acute myeloid leukemia. Here we report a 51-year-old woman with depression and severe obesity who was diagnosed with an International Prognostic Scoring System low-risk myelodysplastic syndrome, presenting mainly with thrombocytopenia, treated with escalating dose of valproic acid as a single agent. After two years of treatment her platelet count is almost normal and the tolerance to therapy is good. It is already known that valproic acid could be used in high-risk myelodysplastic syndromes and acute myeloid leukemia, mainly in association with other drugs, but its role in low-risk myelodysplastic syndrome is not well established yet.

Overexpression of CDKN2B (p15INK4B) and altered global DNA methylation status in mesenchymal stem cells of high-risk myelodysplastic syndromes

Introduction. Myelodysplastic syndromes (MDSs) are a heterogeneous group of clonal hematopoietic stem cell (HSC) malignancies that are characterized by ineffective bone marrow hematopoiesis, peripheral blood cytopenias, and a substantial risk for progression to acute myeloid leukemia. Mesenchymal stem cells (MSCs) isolated from bone marrow of patients affected by myelodysplastic syndromes (MDS) play a critical role in myelodysplastic microenvironment showing altered structural epigenetic and functional features. Methods. In this work we evaluated the effect of azacitidine treatment on MSC-MDS. In particular, we analyzed MSC-MDS from 24 high-risk patients at diagnosis and after azacitidine treatment, studying their morphology, proliferative potential, cell cycle activity and their capacity to support haematopoiesis. Results. MDS-MSCs at diagnosis appeared larger and flattened, achieved confluence at a significantly lower rate than donors and displayed reduced proliferative capacity. In particular 40% of samples were unable to expand. This reduced proliferative capacity of MSC-MDS at diagnosis suggested changes in the cell cycle activity. Therefore we studied the gene expression profiles of 37 regulatory genes, observing CDKN2B up-regulation in MDS-MSCs (8 times higher than donors). Notably, after azacitidine treatment MDS-MSCs of patients who reached complete haematological remission (MDS-MSCs-CR) reverted to the typical BM-MSC morphology and recovered a proliferative potential similar to normal BM-MSC achieving confluence at a significantly higher rate. Molecular analysis on MDS-MSC-CR revealed a significant reduction in the expression level of CDKN2B showing correlation between cell cycle progression and expression level of this gene. Moreover, to study the long-term hematopoietic maintaining ability, MDS-MSCs at diagnosis were cultured with CD133+ cells, and they showed a decreased ability to support the growth of myeloid and erythroid progenitors. Conversely, MSC-MDS-CR showed an increased capacity to support haematopoiesis similar to healthy donors. Conclusion. We showed that MDS-MSCs at diagnosis were structurally and functionally altered while MSC-MDS-CR after azacitidine revert to a normal phenotype. It has been supposed that healthy MSCs adopt MDS-MSCs like molecular features when exposed to haematopoietic MDS cells. Our results may confirm these data suggesting that myelodysplastic cells can alter bone marrow microenvironment interacting with MSC and affecting their normal role and functionality. Disclosures No relevant conflicts of interest to declare.