1,721,134 research outputs found
COVID-19 and Its Cardiovascular Effects: Risk Factors, Prevention and Management
: Coronavirus disease 2019 (COVID-19) is caused by a positive-stranded, single-stranded RNA virus, which is a member of the Sarbecovirus subgenus (beta-CoV lineage B) [...]
Continuous flow left ventricular assist devices and cardiac resynchronization: Friends or foe?
Impact of diabetes mellitus on the clinical response to cardiac resynchronization therapy in elderly people.
Impact of Sex Differences in Incident and Recurrent Coronary Events and All-Cause Mortality
Functional Role of miR-155 in the Pathogenesis of Diabetes Mellitus and Its Complications
Substantial evidence indicates that microRNA-155 (miR-155) plays a crucial role in the pathogenesis of diabetes mellitus (DM) and its complications. A number of clinical studies reported low serum levels of miR-155 in patients with type 2 diabetes (T2D). Preclinical studies revealed that miR-155 partakes in the phenotypic switch of cells within the islets of Langerhans under metabolic stress. Moreover, miR-155 was shown to regulate insulin sensitivity in liver, adipose tissue, and skeletal muscle. Dysregulation of miR-155 expression was also shown to predict the development of nephropathy, neuropathy, and retinopathy in DM. Here, we systematically describe the reports investigating the role of miR-155 in DM and its complications. We also discuss the recent results from in vivo and in vitro models of type 1 diabetes (T1D) and T2D, discussing the differences between clinical and preclinical studies and shedding light on the molecular pathways mediated by miR-155 in different tissues affected by DM
MiR-98 regulates tmprss2 expression in human endothelial cells: Key implications for covid-19
The two main co-factors needed by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to enter human cells are angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2). Here, we focused on the study of microRNAs that specifically target TMPRSS2. Through a bioinformatic approach, we identified miR-98-5p as a suitable candidate. Since we and others have shown that endothelial cells play a pivotal role in the pathogenesis of the coronavirus disease 2019 (COVID-19), we mechanistically validated miR-98-5p as a regulator of TMPRSS2 transcription in two different human endothelial cell types, derived from the lung and from the umbilical vein. Taken together, our findings indicate that TMPRSS2 represents a valid target in COVID-19 treatment, which may be achieved by specific non-coding-RNA approaches
Epistasis between HLA-DRB1-DQB1 alleles conferring susceptible and resistance to multiple sclerosis in Sardinian population
Report (2017) of the International Registry on Hand and Composite Tissue Allotransplantation (IRHCTT)
Purpose of Review: Analysis of all upper extremity (UET) and face allotransplantations (FT) reported to the International Registry on Hand and Composite Tissue Transplantation (IRHCTT) by May 2017. Recent Findings: The IRHCTT includes 66 cases of UET (18 unilateral and 38 bilateral) and 30 of FT. Acute and chronic rejections were reported in the presence of immunosuppression. Complications similar to those reported in solid organ transplantation occurred. UET patient survival was 96.7% at 1, 5, and 10 years after transplantation; graft survival was 90.4% at 1 year and 86.6% at 5 and 10 years. FT patient survival was 96.6% at 1 year and 96.2% at 5 years; graft survival was 96.6% at 1 and 5 years. The majority of UET and FT recipients were satisfied of their graft. Summary: UET and FT are complex procedures requiring long-life immunosuppression; their success requires the patients’ careful selection, through evaluation, follow-up and compliance to the immunosuppression
The link between neurosteroids and syndromic/syndromal components of the mood spectrum disorders in women during the premenstrual phase
OBJECTIVES:
Females with a lifetime diagnosis of major mood disorder (Bipolar Disorder BD, Major Depressive Disorder MMD) investigated during the luteal phase of their menstrual cycle and in a condition of clinical well-being showed higher blood serum concentrations of progesterone and allopregnanolone compared to healthy controls. Women with BD presented even higher levels than those affected by MDD. This study attempted to verify, in line with a dimensional approach, if the possible differences in neurohormonal levels may be directly linked to some syndromal clusters (dimensions) of the mood spectrum disorders indipendently of diagnosis.
METHODS:
Premenstrual concentrations of allopregnanolone, THDOC, progesterone, and cortisol were measured in 3 groups of women: 17 BD and 14 MDD outpatients, and 16 control subjects. Psychiatric evaluation was performed with the SCID-I interview and the SCI-MOODS-SR questionnaire. The correlation between steroid levels and mood disorder syndromal cluster (SCI-MOODS-SR domains and sub-domains) was evaluated by means of analysis of main components with Varimax rotation and Kaiser's normalization (which provided for inclusion of all components with an Eigen value >1).
RESULTS:
Analysis of the main components evidenced the presence of 3 components: 1) mania, 2) depression both with mixed component 3) steroid + manic cognitivity and suicidal ideas.
CONCLUSION:
Levels of allopregnanolone and progesterone do not correlate with the association of the depressive and manic syndromes, but rather with mixed symptomatological aspects, and in particular with cognitive manic and depressive (with suicidal thoughts) dimensions. Further studies should be carried out to confirm these findings
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