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Dive into the research topics where Naim Mahroum is active.

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Featured researches published by Naim Mahroum.


Autoimmunity Reviews | 2016

Hypothyroidism among SLE patients: Case-control study.

Abdulla Watad; Naim Mahroum; Aaron Whitby; Smadar Gertel; Doron Comaneshter; Arnon D. Cohen; Howard Amital

BACKGROUNDnThe prevalence of hypothyroidism in SLE patients varies considerably and early reports were mainly based on small cohorts.nnnOBJECTIVESnTo investigate the association between SLE and hypothyroidism.nnnMETHODSnPatients with SLE were compared with age and sex-matched controls regarding the proportion of hypothyroidism in a case-control study. Chi-square and t-tests were used for univariate analysis and a logistic regression model was used for multivariate analysis. The study was performed utilizing the medical database of Clalit Health Services.nnnRESULTSnThe study included 5018 patients with SLE and 25,090 age and sex-matched controls. The proportion of hypothyroidism in patients with SLE was increased compared with the prevalence in controls (15.58% and 5.75%, respectively, P<0.001). In a multivariate analysis, SLE was associated with hypothyroidism (odds ratio 2.644, 95% confidence interval 2.405-2.908).nnnCONCLUSIONSnPatients with SLE have a greater proportion of hypothyroidism than matched controls. Therefore, physicians treating patients with SLE should be aware of the possibility of thyroid dysfunction.


Immunologic Research | 2017

Association between ischemic heart disease and systemic lupus erythematosus—a large case-control study

Abdulla Watad; Arsalan Abu Much; Danielle Bracco; Naim Mahroum; Doron Comaneshter; Arnon D. Cohen; Howard Amital

Ischemic heart disease (IHD) is a well identified cause of mortality in systemic lupus erythematosus (SLE) patients due to an accelerated premature atherosclerosis. We investigated the proportion of comorbid IHD among SLE patients derived from a large, national real-life database. Using data from the largest HMO in Israel, the Clalit Health Services, we selected for patients with SLE. These patients were compared with age and sex matched controls with regards to the proportion of IHD in a case-control study. Chi-square and t tests were used for univariate analysis, and a logistic regression model was used for multivariate analysis. The study included 5018 patients with SLE and 25090 age and sex-frequency matched controls. The prevalence of IHD in patients with SLE was increased in comparison to controls (11.3 and 3.1%, Pxa0<xa00.001). In a multivariate analysis, SLE was associated with IHD (OR 3.77, 95% confidence interval 3.34–4.26). We have confirmed that SLE patients suffer a high prevalence of IHD. Our data supports that SLE is an independent risk factor for IHD. When evaluating by gender, the risk seems even more substantial in females. No significant difference was found in the risk of IHD in SLE among the difference socioeconomic strata.


Immunologic Research | 2017

Correlation between systemic lupus erythematosus and malignancies: a cross-sectional population-based study

Shir Azrielant; Shmuel Tiosano; Abdulla Watad; Naim Mahroum; Aaron Whitby; Doron Comaneshter; Arnon D. Cohen; Howard Amital

Autoimmune conditions reflect dysregulation of the immune system; this may be of clinical significance in the development of several malignancies. Previous studies show an association between systemic lupus erythematosus (SLE) and the development of malignancies; however, their investigations into the development of specific malignancies are inconsistent, and their external validity may be questionable. The main objective of this study is to investigate the association between the presence of SLE and various malignancies, in a large-scale population-based study. Data for this study was collected from Clalit Health Services, the largest state-mandated health service organization in Israel. All adult members diagnosed with SLE were included (nxa0=xa05018) and their age and sex-matched controls (nxa0=xa025,090), creating a cross-sectional population-based study. Medical records of all subjects were analyzed for documentation of malignancies. Logistic regression models were built separately for each malignant condition, controlling for age, gender, BMI, smoking, and socioeconomic status. Diagnosis of malignancy (of any type) was more prevalent in the SLE population (odds ratio [OR] 3.35, 95% confidence interval [CI] 3.02–3.72). SLE diagnosis was also found to be independently associated with higher proportions of non-Hodgkin lymphoma (OR 3.02, 95% CI 2.72–3.33), Hodgkin lymphoma (OR 2.43, 95% CI 1.88–2.99), multiple myeloma (OR 2.57, 95% CI 1.85–3.28), cervix uteri malignancies (OR 1.65, 95% CI 1.10–2.20), and genital organ malignancies (OR 2.32, 95% CI 1.42–3.22), after adjustment for confounding variables. The presence of an SLE diagnosis was found to be independently associated with higher proportions of malignancies, particularly hematologic malignancies. These findings should be considered while treating SLE patients, and possibly supplement their screening routine.


Immunologic Research | 2017

Hepatitis B carrier state among SLE patients: case-control study.

Omer Gendelman; Naim Mahroum; Doron Comaneshter; Pnina Rotman-Pikielny; Arnon D. Cohen; Howard Amital; Michael Sherf

The association between hepatitis B and autoimmune disorders has been intriguing for decades. Many reports have speculated on the possible linkage between these two conditions, yet never before data driven from a large national database was utilized in order to investigate this issue. The objective of this study was to investigate the association between SLE and hepatitis B carrier state. Patients with SLE were compared with age- and sex-matched controls regarding the proportion of hepatitis B carrier state in a case–control study. Chi-square and t tests were used for univariate analysis, and a logistic regression model was used for multivariate analysis. The study was performed utilizing the medical database of Clalit Health Services. The study included 5018 lupus patients over the age of 20xa0years and 25,090 age- and sex-frequency-matched controls without SLE. The proportion of hepatitis B carriers was higher in SLE patients as compared to controls (0.9 and 0.56xa0%, respectively; pxa0<xa00.001). A significant association was also observed among patients in lower socioeconomic status. In a multivariate logistic regression analysis, SLE was significantly associated with hepatitis B (ORxa0=xa01.828, 95xa0% CIxa0=xa01.291–2.590). Patients with SLE have a greater proportion of hepatitis B carrier state than matched controls.


BMJ Open | 2016

Missed opportunities for earlier diagnosis of HIV in patients who presented with advanced HIV disease: a retrospective cohort study

Itzchak Levy; Yasmin Maor; Naim Mahroum; Liraz Olmer; Anat Wieder; Vladislav Litchevski; Orna Mor; Galia Rahav

Objective To quantify and characterise missed opportunities for earlier HIV diagnosis in patients diagnosed with advanced HIV. Design A retrospective observational cohort study. Setting A central tertiary medical centre in Israel. Measures The proportion of patients with advanced HIV, the proportion of missed opportunities to diagnose them earlier, and the rate of clinical indicator diseases (CIDs) in those patients. Results Between 2010 and 2015, 356 patients were diagnosed with HIV, 118 (33.4%) were diagnosed late, 57 (16%) with advanced HIV disease. Old age (OR=1.45 (95% CI 1.16 to 1.74)) and being heterosexual (OR=2.65 (95% CI 1.21 to 5.78)) were significant risk factors for being diagnosed late. All patients with advanced disease had at least one CID that did not lead to an HIV test in the 5u2005years prior to AIDS diagnosis. The median time between CID and AIDS diagnosis was 24u2005months (IQR 10–30). 60% of CIDs were missed by a general practitioner and 40% by a specialist. Conclusions Missed opportunities to early diagnosis of HIV occur in primary and secondary care. Lack of national guidelines, lack of knowledge regarding CIDs and communication barriers with patients may contribute to a late diagnosis of HIV.


PLOS ONE | 2018

Public reaction to Chikungunya outbreaks in Italy—Insights from an extensive novel data streams-based structural equation modeling analysis

Naim Mahroum; Mohammad Adawi; Kassem Sharif; Roy Waknin; Hussein Mahagna; Bishara Bisharat; Mahmud Mahamid; Arsalan Abu-Much; Howard Amital; Nicola Luigi Bragazzi; Abdulla Watad

The recent outbreak of Chikungunya virus in Italy represents a serious public health concern, which is attracting media coverage and generating public interest in terms of Internet searches and social media interactions. Here, we sought to assess the Chikungunya-related digital behavior and the interplay between epidemiological figures and novel data streams traffic. Reaction to the recent outbreak was analyzed in terms of Google Trends, Google News and Twitter traffic, Wikipedia visits and edits, and PubMed articles, exploiting structural modelling equations. A total of 233,678 page-views and 150 edits on the Italian Wikipedia page, 3,702 tweets, 149 scholarly articles, and 3,073 news articles were retrieved. The relationship between overall Chikungunya cases, as well as autochthonous cases, and tweets production was found to be fully mediated by Chikungunya-related web searches. However, in the allochthonous/imported cases model, tweet production was not found to be significantly mediated by epidemiological figures, with web searches still significantly mediating tweet production. Inconsistent relationships were detected in mediation models involving Wikipedia usage as a mediator variable. Similarly, the effect between news consumption and tweets production was suppressed by the Wikipedia usage. A further inconsistent mediation was found in the case of the effect between Wikipedia usage and tweets production, with web searches as a mediator variable. When adjusting for the Internet penetration index, similar findings could be obtained, with the important exception that in the adjusted model the relationship between GN and Twitter was found to be partially mediated by Wikipedia usage. Furthermore, the link between Wikipedia usage and PubMed/MEDLINE was fully mediated by GN, differently from what was found in the unadjusted model. In conclusion—a significant public reaction to the current Chikungunya outbreak was documented. Health authorities should be aware of this, recognizing the role of new technologies for collecting public concerns and replying to them, disseminating awareness and avoid misleading information.


Nutrients | 2018

Folate and B12 Levels Correlate with Histological Severity in NASH Patients

Mahmud Mahamid; Naim Mahroum; Nicola Luigi Bragazzi; Kasem Shalaata; Yarden Yavne; Mohammad Adawi; Howard Amital; Abdulla Watad

Background: The correlation between abnormal vitamin serum levels and chronic liver disease has been previously described in literature. However, the association between the severity of folate serum levels (B9), vitamin B12 and nonalcoholic steatohepatitis (NASH) has not been widely evaluated. Therefore, the aim of this study was to investigate the existence of such a correlation in a cohort of NASH patients. Methods: All patients aged 18 years and older who were diagnosed with biopsy-proven NASH at the EMMS hospital in Nazareth during the years 2015–2017 were enrolled in this study. Data regarding demographic, clinical and laboratory parameters was collected. Patients with other liver diseases were excluded. Results: Eighty-three NASH patients were enrolled during the study period. The mean age was 41 ± 11 years and the majority of patients were male. Mean values of folate and B12 were 9.85 ± 10.90 ng/mL and 387.53 ± 205.50 pg/mL, respectively. Half of the patients were presented with a grade 1 steatosis (43.4%), a grade 2 fibrosis (50.6%) and a grade 3 activity score (55.4%). The fibrosis grade was significantly correlated with low folate levels on multivariate analysis (p-value < 0.01). Similarly, low B12 levels were significantly associated with a higher fibrosis grade and NASH activity (p-value < 0.001 and p-value < 0.05 respectively). Conclusion: Our study demonstrated a statistically significant correlation between low levels of folate and vitamin B12 with the histological severity of NASH. These findings could have diagnostic and therapeutic implications for patient management and follow-up.


Immunologic Research | 2017

Chronic hepatitis C viral infection among SLE patients: the significance of coexistence

Naim Mahroum; Ashraf Hejly; Shmuel Tiosano; Omer Gendelman; Doron Comaneshter; Arnon D. Cohen; Howard Amital

The association between viral infection and autoimmune diseases is an established phenomenon in medicine. Hepatitis C viral infection is known to have such an association; however, its association with systemic lupus erythematosus has not been studied in a real life study driven from a large national database. The objective of this study was to investigate the association between SLE and chronic hepatitis C viral infection. Patients with SLE were compared with age- and sex-matched controls regarding the proportion chronic HCV infection. Chi-square and t tests were used for univariate analysis, and a logistic regression model was used for multivariate analysis. The study was performed utilizing the medical database of Clalit Health Services in Israel. There was a significant higher proportion of hepatitis C viral infection in SLE patients as compared to controls (1.06 and 0.39%, respectively; pxa0<xa00.001). A significant association was also observed among patients of higher socioeconomic status. In a multivariate logistic regression analysis, SLE was significantly associated with hepatitis C viral infection (ORxa0=xa02.07, 95% CIxa0=xa01.46–2.90). To conclude, Patients with SLE have a greater proportion of chronic HCV infection than matched controls.


Frontiers in Immunology | 2017

Ramadan Fasting Exerts Immunomodulatory Effects: Insights from a Systematic Review

Mohammad Adawi; Abdulla Watad; Stav Brown; Khadija Aazza; Hicham Aazza; Mohamed Zouhir; Kassem Sharif; Khaled Ghanayem; Raymond Farah; Hussein Mahagna; Stefano Fiordoro; Samir Giuseppe Sukkar; Nicola Luigi Bragazzi; Naim Mahroum

Ramadan is the ninth month of the Islamic lunar calendar and is observed by Muslims as a month of fasting. All Muslim adults are expected to fast; nevertheless certain subgroups, including sick, frail subjects, and pregnant women, among others, are exempted. Ramadan fasting has been shown to impact on body systems in different manners. The influence of Ramadan fasting on immune system regulation remains elusive; however, immune system changes, such as the modulation of body response to various infectious, stressful, and other harmful events, are of great interest during fasting. In this paper, we performed an extensive systematic literature review of different scholarly databases (ISI/Web of Science, Scopus, PubMed,/MEDLINE, Google Scholar, Directory of Open Access Journals, EbscoHOST, Scirus, Science Direct, the Cochrane Library, and ProQuest), using the following key words: “fasting,” “Ramadan,” “Islam,” and “immunity.” Conclusions drawn from these findings included: (1) Ramadan fasting has been shown to only mildly influence the immune system and the alterations induced are transient, returning to basal pre-Ramadan status shortly afterward. (2) Ramadan fasting during the second trimester of pregnancy was shown to be safe and did not result in negative fetal outcomes, or maternal oxidative status alterations. (3) In cardiac patients, Ramadan fasting can have beneficial effects including lipid profile improvement and alleviation of oxidative stress. (4) In asthmatic patients as well as in patients with human immunodeficiency virus/acquired immunodeficiency syndrome and autoimmune disorders, fasting was safe. (5) In psychiatric patients, such as those suffering from schizophrenia, fasting could increase immunologic markers. (6) Fasting Muslim athletes who maintain intensive training schedule during Ramadan showed fluctuations of immunologic markers.


Epilepsy & Behavior | 2017

On status epilepticus and pins: A systematic content analysis

Naim Mahroum; Abdulla Watad; Nicola Luigi Bragazzi; Howard Amital; Kassem Sharif; Samaa Watad; Giulia Adavastro; Giovanna Canepa; Francesco Brigo; Mohammad Adawi

Status epilepticus (SE) can be defined as abnormally prolonged, persistent, or recurrent clinical and/or electrographic epileptic activity and, as such, is a challenging medical emergency requiring an aggressive treatment aimed at promptly terminating the seizures. It imposes a relevant clinical burden, both in terms of comorbidity and mortality. In the era of the Web 2.0, most people search the Web to obtain SE-related information. The current investigation aimed at qualitatively characterizing the pins related to SE: Pinterest, the worlds catalog of ideas, is a visual social networking site that enables users to freely upload visual material, to bookmark, and to share it (repin). Using SE as a keyword, 192 pins were extracted and analyzed on the basis of their content. Fifty-five were found to meet the inclusion criteria. Fifty-six point four percent of the pins reported at least one cause of SE, the most quoted of which being remote brain injuries (47.3% of the pins); 54.5% and 45.5% of the included pins reported SE symptoms and diagnosis, respectively; 72.7% and 40.0% of pins focused on SE treatment and on prognosis, respectively; and 50.9%, 30.9%, and 40.0% of the pins were intended for physicians, medical/nursing students, and lay people, respectively. Only 12.7% of pins were patient-centered and devoted to fund-raising and advocacy. In the field of neurological diseases, Pinterest, despite being a pinstructive tool, is too much overlooked and underused for advocacy purposes. Healthcare workers and stakeholders should be aware of the opportunities offered by Pinterest and exploit this visual social networking site for raising awareness of the life-threatening condition of SE, promoting fund-raising campaigns.

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Arnon D. Cohen

Ben-Gurion University of the Negev

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Doron Comaneshter

Ben-Gurion University of the Negev

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