Ion Udriștoiu

Ion Udriștoiu

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Ion Udriștoiu has a total of 80 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Exploratory Psychometric Assessment of the Endler Multidimensional Anxiety Scales in Romanian Hemodialysis Patients: Reliability, Convergent Validity, and Domain-Level Structure

    by Adriana-Luciana Luca, Felicia Militaru, Virginia Maria Rădulescu, Cristina Mariana Văduva, Daniela Teodora Maria, Mădălina Iuliana MușAt, Ion UdrișToiu, Eugen Moța

    Background and Objectives: Chronic kidney disease (CKD) is an increasingly important global health challenge and is frequently accompanied by psychiatric symptoms, including anxiety. A multidimensional assessment of anxiety in hemodialysis (HD) using the Endler Multidimensional Anxiety Scales (EMAS) has not, to our knowledge, been previously reported. We aim to evaluate the reliability, convergent validity, and exploratory domain-level structure of EMAS in HD patients treated at a dialysis center in Craiova, Romania. Materials and Methods: A total of 103 HD patients underwent clinical and sociodemographic/socioeconomic profiling, cognitive screening using the Mini-Mental State Examination (MMSE), and EMAS administration at two time points (4-week interval) for test–retest evaluation. The anxiety subscale of the Depression, Anxiety, and Stress Scale-21R (DASS-21R) was administered to assess convergent validity. Internal consistency (Cronbach’s α), temporal stability (test–retest correlations and intraclass correlation coefficients), and convergent validity (Pearson correlations) were computed. Exploratory factor analyses were conducted on EMAS domain scores (state, trait, and perceived anxiety domains) as an exploratory structural check. Results: EMAS state and trait anxiety scores were higher in women than in men, while perceived anxiety showed a more heterogeneous pattern across dimensions. Total state anxiety increased with age, particularly after 50 years. Domain-level internal consistency was good for state and acceptable for trait components (standardized α ≈ 0.84 and 0.78 across administrations), whereas perceived anxiety domains showed low cross-domain coherence, consistent with context-specific appraisal. The DASS-21R anxiety subscale showed good internal consistency (α = 0.863). Convergent validity analyses indicated small, domain-specific associations between EMAS scores and DASS-21R anxiety. Domain-level EFA supported a theoretically coherent pattern in which state and trait domains clustered distinctly, while perceived anxiety domains formed a partially separable factor; this pattern was broadly consistent across both administrations. Conclusions: In this HD cohort, EMAS demonstrated good reliability and limited but domain-specific evidence of convergent validity, and exploratory domain-level analyses supported its multidimensional organization. Further studies with larger samples are warranted for item-level structural testing and to inform feasibility-oriented shortening for potential clinical use.

  • Open Access

    Longitudinal Changes in Depression, Anxiety and Stress Symptoms Among Hemodialysis Patients

    by Adriana-Luciana Luca, Felicia Militaru, Mădălina Iuliana Mușat, Ion Udriștoiu, Eugen Moța

    Background/Objectives: Chronic kidney disease (CKD) progresses with the gradual and irreversible loss of renal function. In Romania, given the increasing number of patients undergoing hemodialysis (HD), the prevalence of psychiatric symptoms and disorders in this population has become particularly significant. Although important advances have been made in the management of psychiatric conditions in HD patients, their mental health remains relatively poor. The aim of this study was to observe the severity temporal trends of depression, anxiety and stress symptoms and correlations among HD patients. Methods: A total of 173 patients, underwent a detailed anamnesis, with emphasis dialysis duration, comorbidities and a complex psychiatric evaluation, followed by the application of the Socio-economic Scale (SES-3); Mini Mental State Examination (MMSE); and the Depression, Anxiety and Stress Scale 21R (DASS-21R). The dialysis performance (spKt/V) and Charlson Comorbidity (CCI) indices were provided by DIAVERUM Nephrology and Dialysis Center in Craiova. Results: The severity of depression and anxiety symptoms significantly increased over six months, 0.248 ± 1.432 vs. 0.453 ± 1.488 (p < 0.0001; rrb = 0.296) for depression, and −0.090 ± 1.004 vs. 0.089 ± 1.047 (p < 0.0001; rrb = 0.252) for anxiety; while stress-like symptoms remained stable 0.080 ± 1.318 vs. 0.164 ± 1.357 (p = 0.0661; rrb = 0.123), despite improvements in dialysis adequacy (spKt/V). Depression scores were moderately correlated with anxiety and weakly correlated with stress and spKt/V. Anxiety results were moderately correlated with stress, while both anxiety and stress showed negligible correlations with spKt/V. Clinical variables assessed showed moderate predictive value for psychological outcomes in this cohort. Conclusions: Our study confirms the temporal trend of severity of mental symptoms and their persistence among HD patients, highlighting the urge to integrate mental health screening and intervention programs and a multidisciplinary team adapted for each case.


  • Open Access

    Integrated Pulmonary Severity Score (IPSS) for COPD: A Psycho-Respiratory Risk Index Supported by Explainable Machine Learning

    by Iulian-Laurențiu Buican, Alina-Catalina Buican-Chirea, Dumitru Radulescu, Ion Udristoiu, Victor Gheorman, Dragos-Mihai Cojocaru, Costin-Teodor Streba

    Background/Objectives: In chronic obstructive pulmonary disease (COPD), forced expiratory volume in one second (FEV1) explains only part of the variability in symptoms and prognosis, while anxiety and depression are common but rarely quantified in composite indices. We aimed to develop and internally validate an Integrated Pulmonary Severity Score (IPSS) that combines respiratory function, symptom burden and affective status. Methods: In a prospective observational study, 390 adults with spirometry-confirmed COPD were consecutively enrolled at two tertiary Romanian centres (October 2022–September 2024). Within 48 h of admission, patients underwent spirometry (FEV1% predicted), dyspnoea grading (mMRC), symptom assessment (CAT), affective evaluation (HADS-Anxiety/Depression) and cognitive screening (MoCA, MMSE). A PulmoScore was built from CAT, mMRC and ventilatory deficit (100 − FEV1%) and extended with a HADS-based psychiatric multiplier to obtain IPSS. Spectral clustering, logistic regression, a multilayer perceptron (MLP) and LIME were used for phenotyping and validation. Results: Spectral clustering identified two phenotypes—psycho-respiratory and predominantly respiratory—with acceptable separation (silhouette coefficient 0.26). The psycho-respiratory group showed lower FEV1%, higher CAT and mMRC scores, more severe anxiety–depression and markedly higher IPSS values. Logistic regression and the MLP achieved an accuracy of 0.89, an AUC of 0.95 and Cohen’s κ ≥ 0.75 for identifying this phenotype when using the same core clinical variables that informed phenotyping and IPSS construction. IPSS values were distributed across four strata (<30, 30–69, 70–119, ≥120 points), reflecting progressively worse respiratory and affective burden. Conclusions: In this cohort, IPSS captured a clinically meaningful psycho-respiratory phenotype and improved integrated severity assessment beyond spirometry alone, with potential utility for risk stratification. It can be computed from routine measures, is compatible with explainable AI workflows and warrants external, longitudinal validation before widespread implementation.


  • Open Access

    Depression, Anxiety, Stress Symptoms and Health-Related Quality of Life in Hemodialysis Patients: Cross-Sectional Findings from a Romanian Cohort

    by Adriana-Luciana Luca, Felicia Militaru, Cristina Mariana Văduva, Ilie-Robert Dinu, Daniela Teodora Maria, Mădălina Iuliana Mușat, Virginia Maria Rădulescu, Ion Udriștoiu, Eugen Moța

    Background and Objectives: Chronic kidney disease (CKD) and maintenance hemodialysis (HD) are frequently associated with psychological distress and impaired health-related quality of life (HRQoL). However, the relationships between depressive, anxiety, and stress symptoms, clinical factors, and HRQoL remain insufficiently understood in routine care. This study aimed to assess the prevalence of psychological distress and to explore cross-sectional correlates of kidney disease-specific and generic HRQoL in Romanian patients receiving long-term HD, providing one of the first detailed characterizations of these relationships in an Eastern European maintenance HD cohort. Materials and Methods: This single-center cross-sectional study included 125 adult patients undergoing maintenance HD for at least one year. Baseline assessment comprised socioeconomic, demographic and clinical and paraclinical data, including Charlson Comorbidity Index (CCI), dialysis adequacy (spKt/V), cognitive function, psychological distress assessed with the Depression, Anxiety and Stress Scale (DASS-21R), and HRQoL evaluated using the Kidney Disease Quality of Life Short Form (KDQOL-SF™ 1.3). HRQoL domains and physical and mental component summary scores (PCS, MCS) were analyzed using descriptive statistics, correlation analyses, and multivariable linear regression. Follow-up assessments at approximately one year were summarized descriptively. Results: Disease-specific HRQoL revealed marked impairment in perceived disease burden and work status, while physical HRQoL was substantially reduced (PCS 36.5 ± 9.6). Mental HRQoL was relatively preserved (MCS 48.8 ± 8.8). At baseline, 48.0% of patients reported at least mild depressive symptoms, 34.4% anxiety symptoms, and 44.0% stress symptoms. spKt/V showed a modest association with PCS. Psychological distress demonstrated weak associations with HRQoL; stress was independently associated with lower MCS, with limited explained variance (R2 ≤ 0.15). Conclusions: Psychological distress is common among Romanian HD patients and is cross-sectionally associated with markedly impaired physical HRQoL. While the present design does not allow causal inferences, these findings support the implementation of routine psychological screening and the consideration of targeted psychosocial interventions in HD care.


  • Open Access

    Immunological Biomarkers in Autism Spectrum Disorder: The Role of TNF-Alpha and Dependent Trends in Serum IL-6 and CXCL8

    by Catalina Mihaela Anastasescu, Veronica Gheorman, Eugen-Cristi Stoicanescu, Florica Popescu, Victor Gheorman, Ion Udriștoiu

    Background: Autism spectrum disorder (ASD) has seen a rise in prevalence, and the immune system’s role in brain development is increasingly recognized. This study investigates the relationship between immune dysregulation and ASD by examining serum concentrations of interleukin 6 (IL-6), interleukin 8 (CXCL8), and tumor necrosis factor alpha (TNF-alpha) in children. Methods: Serum samples from 45 children with ASD and 30 controls, aged 2 to 12 years, were analyzed using electrochemiluminescence, chemiluminescent microparticle immunoassay, and chemiluminescent immunoassay. ASD symptoms were assessed using the Autism Spectrum Rating Scale (ASRS) and Social Communication Questionnaire (SCQ). Results: No significant correlation was observed between CXCL8 levels and ASD. IL-6 levels showed a trend toward elevation in boys with ASD. TNF-alpha levels were significantly higher in children with ASD under 5 years compared to older children and controls, though no correlation with symptom severity was found. Conclusions: TNF-alpha may be a potential biomarker for early ASD detection, especially in younger children. Further research on larger cohorts is needed to understand the role of immune dysregulation in ASD.


  • Open Access

    Interactions between Cognitive, Affective, and Respiratory Profiles in Chronic Respiratory Disorders: A Cluster Analysis Approach

    by Iulian-Laurențiu Buican, Victor Gheorman, Ion Udriştoiu, Mădălina Olteanu, Dumitru Rădulescu, Dan Marian Calafeteanu, Alexandra Floriana Nemeş, Cristina Călăraşu, Patricia-Mihaela Rădulescu, Costin-Teodor Streba

    This study conducted at Leamna Pulmonology Hospital investigated the interrelations among cognitive, affective, and respiratory variables within a cohort of 100 patients diagnosed with chronic respiratory conditions, utilizing sophisticated machine learning-based clustering techniques. Spanning from October 2022 to February 2023, hospitalized individuals confirmed to have asthma or COPD underwent extensive evaluations using standardized instruments such as the mMRC scale, the CAT test, and spirometry. Complementary cognitive and affective assessments were performed employing the MMSE, MoCA, and the Hamilton Anxiety and Depression Scale, furnishing a holistic view of patient health statuses. The analysis delineated three distinct clusters: Moderate Cognitive Respiratory, Severe Cognitive Respiratory, and Stable Cognitive Respiratory, each characterized by unique profiles that underscore the necessity for tailored therapeutic strategies. These clusters exhibited significant correlations between the severity of respiratory symptoms and their effects on cognitive and affective conditions. The results highlight the benefits of an integrated treatment approach for COPD and asthma, which is personalized based on the intricate patterns identified through clustering. Such a strategy promises to enhance the management of these diseases, potentially elevating the quality of life and everyday functionality of the patients. These findings advocate for treatment customization according to the specific interplays among cognitive, affective, and respiratory dimensions, presenting substantial prospects for clinical advancement and pioneering new avenues for research in the domain of chronic respiratory disease management.


  • Open Access

    Moderate Alcohol Consumption Increases the Risk of Clinical Relapse in Male Depressed Patients Treated with Serotonin-Norepinephrine Reuptake Inhibitors

    by Mădălina Iuliana Mușat, Felicia Militaru, Victor Gheorman, Ion Udriștoiu, Smaranda Ioana Mitran, Bogdan Cătălin

    Background: While depression can be associated with multiple comorbidities, the association between depression and liver injury significantly increases the mortality risk. The aim of this study was to evaluate if moderate alcohol intake affects the rate of clinical relapses in patients treated with antidepressants as monotherapy. Methods: We assessed, over a period of 30 months, the clinical records of 254 patients with depressive disorder, of either gender, without additional pathologies, receiving monotherapy treatment with antidepressants. Thirty-three patients with alcohol abuse, alcoholism or significant cognitive impairment were excluded. The medical and psychiatric history, medication and liver enzyme values were collected and analyzed. Results: Out of the 221 patients who met the inclusion criteria, 78 experienced relapses of depression. The rate of relapse did not correlate with the levels of liver enzymes. Alcohol consumption, as objectified based on GGT levels and the AST/ALT ratio, suggested that men had higher alcohol intake compared to women. Patients treated with serotonin-norepinephrine reuptake inhibitors (SNRIs) with elevated AST levels were approximately 9 times more likely to relapse, while the ones with elevated GGT had a 5.34 times higher risk. While GGT levels remained a marker for relapse in men with elevated GGT, ALT and not AST proved to be a better risk indicator for relapses in male patients. Conclusion: The use of SNRIs in depressed male patients with moderate alcohol intake should be carefully considered, as they might be susceptible to higher risks of relapse compared to alternative antidepressant therapies.


  • Open Access

    A Clinical Study of Urine Amino Acids in Children with Autism Spectrum Disorder

    by Cătălina Mihaela Anastasescu, Veronica Gheorman, Florica Popescu, Mioara Desdemona Stepan, Eugen Cristi Stoicănescu, Victor Gheorman, Ion Udriștoiu

    Amino acids are organic compounds that enter the protein structure, being involved in the proper functioning of the body. The role of amino acids in the onset of autism spectrum disorder (ASD) is yet to be established. Our aim was to identify correlations between urine amino acids and their derivatives and ASD. Methods: We designed a case–control study that consisted of 75 boys and girls, aged between 2 and 12 years. For amino acid profile, we used urine samples that were analyzed using liquid chromatography–tandem mass spectrometry (LC-MS/MS). Results: Descriptive analysis showed higher values for glutamine, hydroxyproline, tyrosine, aspartic acid, and tryptophan and lower values for serine in the autism group than in the control group. Also, we found that boys with autism had higher values than the boys in the control group for serine, threonine, and aspartic acid. For girls from both groups, we did not find statistically significant values. In terms of age groups, we found significantly higher values for histidine, threonine, valine, methionine, aspartic acid, glutamic acid, alpha amino-adipic acid, sarcosine, alanine, and beta-alanine and significantly lower values for proline for both the autism and control groups under 5 years. Conclusions: The findings of this study support the assumption that amino acids may have a role in the expression of ASD.


  • Open Access

    Alcohol Consumption Is a Coping Mechanism for Male Patients with Severe Anxiety Disorders Treated with Antidepressants Monotherapy

    by Mădălina Iuliana Mușat, Felicia Militaru, Ion Udriștoiu, Smaranda Ioana Mitran, Bogdan Cătălin

    Background: Anxiety disorders are prevalent mental health conditions often accompanied by various comorbidities. The association between anxiety and liver disease, as well as fluctuations in blood sugar levels, highlights the importance of carefully evaluating patients with anxiety undergoing antidepressant therapy. The aim of this study was to conduct a comparative assessment of liver function and blood glucose levels in patients diagnosed with anxiety disorders while considering potential gender-specific differences. Methods: An analysis was conducted over a 24-month period. This study included 88 patients diagnosed with anxiety disorders, with symptoms severe enough to require hospitalization, aged 18 or older, undergoing antidepressant monotherapy, without any additional pathologies. Liver enzymes (AST, ALT, GGT), AST/ALT ratio, and blood glucose levels were measured and compared. Results: While no significant differences were found between antidepressant classes, increased GGT levels were observed in men older than 40 years compared to women of the same age, suggesting that alcohol consumption may be a coping mechanism for anxiety. This gender difference was not observed among young patients. Conclusions: Early detection of alcohol consumption is essential in patients with anxiety disorders in order to prevent alcohol-related liver damage and to adjust the management of both conditions accordingly.


  • Open Access

    Sympathetic Nervous Influences Are Negative Prognostic Factors in Stomach Cancer

    by Mihai Petrescu, Georgică Târtea, Ion Udriștoiu, Felicia Militaru, Alexandra-Roxana Petrescu, Ana-Maria Ciurea, Ana-Maria Petrescu, Cosmin Obleagă, Cristin Constantin Vere

    (1) Background: The aim of our study was to assess the involvement of the sympathetic nervous system in the progression of patients with gastric carcinoma by analyzing the sympathetic neuronal fibers and beta 2 adrenoreceptors. (2) Methods: We performed a retrospective study in which we analyzed the clinical, biological, and histological data from a total of 104 patients diagnosed with stomach cancer. (3) Results: After analyzing the immunoreactivity of beta 2 adrenoreceptors, we observed increased values in patients with tumors larger than 5 cm in diameter (p = 0.0371), with a deeper degree of tumor invasion T3–4 (p = 0.0159), invasion in more than two lymph nodes (p = 0.0462), or a TNM stage III–IV. Regarding the survival analysis, better survival rates (65%) were observed for patients with a low value of beta 2 adrenoreceptors (B2A−), compared to B2A (+) patients, in which survival at 3 years of follow-up was only 43%. In addition, the analysis of intra-tumoral sympathetic fibers showed a better survival rate (83%) for patients with a low value of density compared to patients with increased density, in whom the survival rate was only 24%. (4) Conclusions: The findings of this study indicate that patients with stomach cancer have a more unfavorable prognosis when they have a higher density of sympathetic nerve fibers and an increased expression of beta 2 adrenergic receptors inside the tumor.