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Autonomic nervous system dysfunction has a major role in the blood pressure (BP) decrease associated with orthostatic hypotension and syncope. The clinical picture of Bartter and Gitelman syndromes includes reduced extracellular fluid volume and normotension or hypotension, but no study has explored autonomic nervous system status in patients with hypotensive episodes associated with these diseases. We tested sympathetic and parasympathetic nervous system function in 4 patients with Bartter and Gitelman syndromes with chronic hypotension. Each patient underwent a battery of autonomic reflex tests, including BP and heart rate response to orthostatism, Valsalva maneuver, cold-pressor test, hand-grip test, and deep breathing. Plasma catecholamines also were measured. BP was monitored during tests by means of continuous noninvasive finger BP recording. Orthostatic hypotension was observed in 1 patient who experienced syncope episodes. Valsalva ratio ranged from 1.21 to 1.61. During the cold-pressor test, the range of systolic and diastolic BP increases were 8 to 31 and 6 to 24 mm Hg, respectively. During the hand-grip test, systolic and diastolic BP increases ranged from 10 to 39 and 8 to 32 mm Hg, respectively. During hyperventilation, the difference between the highest and lowest heart rates was 12 or more beats/min in all patients. Patients' plasma norepinephrine concentrations increased during standing. Our preliminary results suggest that chronic hypotension in patients with Bartter and Gitelman syndromes is not associated with sympathetic and parasympathetic nervous system dysfunction, even when orthostatic hypotension is present. This normal autonomic function suggests that other pathophysiological mechanisms, such as the characteristic vasoconstrictor abnormal cell signaling, may account for hypotension in patients with Bartter and Gitelman syndromes. Copyright © 2007 by the National Kidney Foundation, Inc. [ABSTRACT FROM AUTHOR]

The COVID-19 pandemic exerted an extraordinary pressure on the Italian healthcare system (Sistema Sanitario Nazionale, SSN), determining an unprecedented health crisis. In this context, a multidisciplinary non-governmental initiative called Italian Response to COVID-19 (IRC-19) was implemented from June 2020 to August 2021 to support the Italian health system through multiple activities aimed to mitigate the effects of the pandemic. The objective of this study was to shed light on the role of NGOs in supporting the SSN during the first pandemic wave by specifically exploring: (1) the main challenges experienced by Italian hospitals and out-of-hospital care facilities and (2) the nature and extent of the IRC-19 interventions specifically implemented to support healthcare facilities, to find out if and how such interventions met healthcare facilities' perceived needs at the beginning of the pandemic. We conducted a cross-sectional study using an interviewer administered 32-item questionnaire among 14 Italian healthcare facilities involved in the IRC-19 initiative. Health facilities' main challenges concerned three main areas: healthcare workers, patients, and facilities' structural changes. The IRC-19 initiative contributed to support both hospital and out-of-hospital healthcare facilities by implementing interventions for staff and patients' safety and flow management and interventions focused on the humanization of care. The support from the third sector emerged as an added value that strengthened the Italian response to the COVID-19 pandemic. This is in line with the Health-Emergency and Disaster Risk Management (H-EDRM) precepts, that call for a multisectoral and multidisciplinary collaboration for an effective disaster management., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Parotto, Lamberti-Castronuovo, Censi, Valente, Atzori and Ragazzoni.)

Background: The COVID-19 pandemic has profoundly impacted societies, influencing countries' Health Emergency and Disaster Risk Management (H-EDRM) systems. By taking Italy as a case study, this research aimed to investigate the response to the COVID-19 pandemic, focusing on the changes made to the existing H-EDRM system, with an emphasis on human resources, health service delivery, and logistics and the forward-looking strategies for the next health emergencies and disasters., Methods: We performed a retrospective observational case study using qualitative methodology. Data was collected via semi-structured interviews and analyzed considering the World Health Organization (WHO) H-EDRM framework. Multiple interviewees were selected to obtain a holistic perspective on the Italian response to COVID-19. Stakeholders from five different sectors (policy-making, hospital, primary care, third sector, lay community) from three of the most impacted Italian regions (Piemonte, Lombardia, and Veneto) were interviewed, for a total of 15 respondents., Results: Results on human resources revolved around the following main themes: personnel, training, occupational health, and multidisciplinary work; results on health service delivery encompassed the following main themes: public health, hospital, and primary care systems; results on logistics dealt with the following themes: infrastructures, supplies, transports, and communication channels. Lessons learned stressed on the importance of considering pragmatic disaster preparedness strategies and the need for cultural and structural reforms. Stakeholders mentioned several implications for the post-pandemic H-EDRM system in Italy., Conclusions: Findings highlight that the interconnection of sectors is key in overcoming pandemic-related challenges and for future disaster preparedness. The implications for the Italian H-EDRM system can inform advancements in disaster management in Italy and beyond., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Lamberti-Castronuovo, Parotto, Della Corte, Hubloue, Ragazzoni and Valente.)

Microglia/macrophages (M) are major contributors to postinjury inflammation, but they may also promote brain repair in response to specific environmental signals that drive classic (M1) or alternative (M2) polarization. We investigated the activation and functional changes of M in mice with traumatic brain injuries and receiving intracerebroventricular human bone marrow mesenchymal stromal cells (MSCs) or saline infusion. MSCs upregulated Ym1 and Arginase-1 mRNA (p < 0.001), two M2 markers of protective M polarization, at 3 and 7 d postinjury, and increased the number of Ym1(+) cells at 7 d postinjury (p < 0.05). MSCs reduced the presence of the lysosomal activity marker CD68 on the membrane surface of CD11b-positive M (p < 0.05), indicating reduced phagocytosis. MSC-mediated induction of the M2 phenotype in M was associated with early and persistent recovery of neurological functions evaluated up to 35 days postinjury (p < 0.01) and reparative changes of the lesioned microenvironment. In vitro, MSCs directly counteracted the proinflammatory response of primary murine microglia stimulated by tumor necrosis factor-α + interleukin 17 or by tumor necrosis factor-α + interferon-γ and induced M2 proregenerative traits, as indicated by the downregulation of inducible nitric oxide synthase and upregulation of Ym1 and CD206 mRNA (p < 0.01). In conclusion, we found evidence that MSCs can drive the M transcriptional environment and induce the acquisition of an early, persistent M2-beneficial phenotype both in vivo and in vitro. Increased Ym1 expression together with reduced in vivo phagocytosis suggests M selection by MSCs towards the M2a subpopulation, which is involved in growth stimulation and tissue repair.

Aim: To investigate the association of uncontrolled hypertension with psychological factors associated with high cardiovascular morbidity and mortality (type D personality, depression, posttraumatic stress-related symptoms)., Methods: 205 consecutive outpatient hypertensives completed three questionnaires evaluating Type D personality (DS 16), post traumatic symptoms (revised Impact of Events Scale), symptoms of anxiety, hostility, depression and obsessive-compulsive traits (subscales of the Symptom Checklist). Uncontrolled hypertension was diagnosed when clinic sitting blood pressure was above 140/90 mmHg (130/80 in the presence of diabetes or nephropathy), despite reported adherence to treatment with at least three antihypertensive medications, including a diuretic., Results: Uncontrolled hypertension (39%), was predicted by lower scores at Symptom Checklist obsessive-compulsive subscale and higher number of post traumatic avoidance symptoms, older age, diabetes, higher systolic pressure at first visit and longstanding hypertension. Type D personality correlated with depression, hostility, anxiety, compulsiveness, history of malignancy, and older age, but not with uncontrolled hypertension., Conclusions: Uncontrolled hypertension is associated with low obsessionality and avoidance symptoms, which reduce compliance to treatment. On the contrary, type D personality is not correlated with uncontrolled hypertension, as it includes compulsiveness, which improves compliance. A multidisciplinary approach to the hypertensive patient is mandatory to establish if the psychological profile affects compliance.

Hypertension is a common disorder of multifactorial origin that constitutes a major risk factor for cardiovascular events such as stroke and myocardial infarction. The subunits of the heterotrimeric G proteins are attractive candidate gene products for both susceptibility to essential hypertension and interindividual variation in blood pressure. A polymorphism (825C/T) in exon 10 of the GNB3 gene, that encodes for the beta3 subunit, has recently been described. The 825T allele is associated with alternative splicing of the gene and formation of a truncated but functionally active beta3 subunit. Carriers of the 825T allele appear to have an increased risk for hypertension, obesity, insulin-resistance and left ventricular hypertrophy. Moreover, 825T allele carriers respond with a stronger decrease in blood pressure to therapy with a thiazide diuretic and with clonidine. GNB3 825T allele may be regarded as a potential genetic marker for a better definition of the risk profile of hypertensive subjects, but further studies are needed to precisely define the impact of T allele on the prognosis of such patients.