Articles

Computational models used in specifying biological systems represent a complement and become an alternative to more widely used mathematical models. Amongst some of the advantages brought by these computational models, one can mention their executable semantics and mechanistic way of describing biological system phenomena. This short overview report enumerated some of the computational models utilised so far in systems and synthetic biology, the associated analysis and formal verification methods and tools, and a way of facilitating a broader use of this alternative approach.

Two female patients in their fifties with a previous history of cutaneous malignant melanoma were found during follow-up to have a 'hot' lesion in the gallbladder on a Positron Emission Tomography scan. Imaging showed a gallbladder polyp. Histology revealed infiltration of the polyp mucosa by metastatic malignant melanoma. One case had a BRAF mutation. A male in his 70s was found on a staging computed tomography scan to have a suspicious intraluminal lesion in the gallbladder and thickening of the sigmoid colon. Subsequent histology confirmed metastatic malignant melanoma in the chest wall and to the gallbladder and adenocarcinoma in the colon. Molecular testing showed BRAF mutation. The metachronous adenocarcinoma in the colon was mismatch repair protein proficient and had no KRAS mutation. Histology from all cases showed that metastatic malignant melanoma to the gallbladder is superficial.Discussion: Reports from autopsy examinations revealed that metastasis from malignant melanoma to the gallbladder can be up to 15% - 20%. Most patients have mild symptoms or are asymptomatic which explains the paucity of cases reported in living patients within the published literature. Most of the previous reports showed the metastatic malignant melanoma to the gallbladder presented macroscopically as a polyploidal lesion. Conclusion: Our histological observation and previous reports showed that metastatic malignant melanoma in the gallbladder tends to be superficial. All our cases show no lymphatic or vascular invasion in the histological examination as previously published reports, however, the hematological spread is the most commonly suggested mechanism of spread.

Background: Temporomandibular Disorder (TMD) pain attributed to myalgia is a common condition and patients should get advice on the best treatment option. Objectives: The aim was to evaluate the effect of two different exercise programs, or bite splint therapy, respectively, in patients with chronic frequent primary myofascial orofacial pain. Methods: The study was a randomized clinical trial including patients fulfilling criteria of chronic frequent primary myofascial orofacial pain with a reported pain intensity of ≥ 4 on a numerical rating scale (0-10). Ninety subjects were randomized to either bite splint, home exercises, or a supervised exercise program. Two examiners blinded to the treatment modality examined the same subject at baseline and a 3-month follow-up. Non-parametric statistical methods were applied for the outcome of treatment in intended-to-treat analyses. A P-value <0.05 was considered statistically significant. Results: The pain severity index was significantly reduced (p < 0.001) in all treatment groups. Jaw opening capacity improved significantly (p < 0.05) for those randomized to bite splint and for those in the home exercise program. About 70% of the participants reported improvement in their TMD pain severity with no significant difference between treatments. Both exercise groups improved in jaw function at the 3-month follow-up compared to baseline. Those who had a bite splint reported significantly more improvement in their headaches compared to those in the exercise programs. Conclusion: Jaw exercise programs and bite splint treatments had similar positive effects on TMD pain severity attributed to myalgia after 3 months.

In a young patient with iron deficiency anemia and low hemoglobin levels, we identified a very rare association: Demyelinating disease with Inflammatory Bowel Disease (IBD).

Post-stroke vocal cord paralysis is a condition much less recognized compared to dysphagia. We describe bilateral vocal cord palsy in a thirty-six-year-old man following a stroke. 

Background: Early-onset sarcoidosis is a rare systemic inflammatory granulomatous disease, distinguished by onset before the age of 4 and notably lacking pulmonary involvement. Unfortunately, the condition often shows clinical features similar to juvenile idiopathic arthritis, resulting in the misdiagnosis of numerous patients. This case report delves into the challenges associated with the delayed diagnosis of early-onset sarcoidosis, with a particular focus on the diagnostic methods employed to address this delayed recognition.Case presentation: A 15-year-old girl presented with a history of recurrent fever since infancy, accompanied by rash, arthritis, and joint deformity. Previously misdiagnosed with juvenile idiopathic arthritis, she underwent management with steroids and methotrexate, yielding no improvement. The diagnosis of early-onset sarcoidosis was made during adolescence based on serial examinations, comprehensive laboratory and radiological evaluations, and subsequent histopathology findings. Presently, the patient is receiving treatment with low-dose steroids and biologic therapy (Tocilizumab) and experiencing no disease progression.Conclusion: This case report underscores the importance of considering early-onset sarcoidosis in the differential diagnosis of pediatric patients exhibiting persistent arthritis from an early age. Early detection and treatment are crucial in averting complications and enhancing the overall quality of life. 

Antibiotic resistance is a growing global crisis, straining healthcare systems and leaving us with limited options to combat drug-resistant bacteria. This retrospective, cross-sectional study examines the prevalence of antibiotic resistance patterns among urinary tract infections (UTIs) in Al-Shifa Hospital’s medical departments in comparison with non-medical departments using data from microbiology laboratory archives over a one-year period. From the examined urine cultures about 25% were obtained from internal medicine departments and double the number was obtained from non-medical departments. The positive rate was around 35% and about two-thirds of the samples were collected from female patients. Among all departments, Enterobacteriaceae spp. were found to be the most frequently isolated uropathogens, accounting for 80% of cases. However, resistance rates varied depending on the specific organism and antibiotic used. For instance, E. coli showed a resistance rate of only 5% against meropenem, while amoxicillin-clavulanic acid exhibited a resistance rate exceeding 95%.Importantly, the study revealed a significant disparity in resistance rates between medical and non-medical departments, specifically concerning third-generation cephalosporins. In internal medicine departments, resistance rates were alarmingly high, with cefotaxime, ceftriaxone, and ceftazidime showing resistance rates of 75%, 75% and 66.5% respectively. In contrast, non-medical departments displayed lower resistance rates, approximately 60%, 60% and 40%, respectively.In summary, this research sheds light on the escalating problem of antibiotic resistance in UTIs and emphasizes the discrepancy in resistance rates between medical and non-medical departments. Urgent efforts are required to address this issue and find effective solutions to prevent the rise of untreatable bacterial infections.

Introduction: We strongly believe that rs-fMRI using independent component analysis (ICA) must be considered as a technique to be systematically used in the near future, as positron emission tomography (PET TC) is today. Unfortunately, this technique is not yet used in Italy because, despite the studies just summarized, it is considered “experimental” and not routine without reasonable justification!Aim of the Study: We present two cases studied with these techniques, after the informed consent obtained by the patients1) A young woman from Sicily, in whom an rs-fMRI revealed her severe personality disorder, was found capable of insight and strong-willed and was therefore found guilty by the criminal court of the murder of her young son, with a strange motive: rs-fMRI cannot be considered part of the assessment because it is so far considered experimental. PET-TAC was also classified as routine in Italy after a long legal discussion. We hope that all these studies, which are now summarized in this review, will be considered useful, at least in Europe, when a judge has to decide whether to sentence a person with psychological or psychiatric problems or to consider them as a person to be treated in a specific residential home (called REMS in Italy).2) Another woman from Bergamo, after having killed a neighbor of hers, was, instead, considered not guilty because of her inability to want to kill him, and so admitted to a particular structure (REMS: residence to execution of security measures) to treat her problem, front temporal dementia, with a severe neuropsychiatric disorder (NPS), diagnosed after the crimen was fulfilled.Conclusions: These two interesting cases demonstrate that in Italy nowadays, we do not have a homogeneous methodology to investigate the ability to understand and want, limiting the study only to personality tests. Here we describe new techniques that may help in this objective.

Accumulated condylomas are exophytic tumors with a warty and hyperkeratosic surface due to the Human papillomavirus (HPV). Its prevalence in children is difficult to estimate due to limitations in epidemiological data. Its recurrent character is found in 30% of patients. Its management is very complex in children because of skin fragility. Circumcision is an operation consisting of the removal of part of the foreskin. This practice is done either with a simple knife or a pair of non-aseptic scissors which can be a source of contamination including HPV (Condyloma). Traditional circumcision does not seem to be reported in the literature as a mode of contamination. We report a case of genital condyloma in a child 2 years after circumcision. This is a 2-year-old male with no medical history but with a surgical history of circumcision that was brought by his parents in dermatological consultation for papular lesions accumulated on the penis. At the interrogation, we found the notion of recent circumcision performed by a tradithérapeute. The physical examination finds a good general condition. Dermatological examination reveals on the glans of multiple papules, exophitic, with warty and hyperkeratotic surface, of normal skin color. Furthermore, the physical examination of both parents was normal. The diagnosis of accumulated condyloma secondary to probable circumcision was retained before the clinical appearance of the lesions. Two electrocoagulation sessions spaced one month apart under local anesthesia were the treatment with a favorable evolution.

Cardiovascular disease (CVD), including coronary artery disease and stroke, is the leading cause of death worldwide. Advances in primary and secondary prevention of CVD have improved patient prognoses and outcomes, however, it is imperative that the clinician and patient engage in early risk factor screening and preventive management of modifiable risk factors for CVD. In addition to blood lipid and blood pressure lowering medications, aspirin has been a long-standing therapy targeted to the prevention of CVD based on its antiplatelet and anti-inflammatory activity. However, recent articles and reports on updates to clinical guidelines for the primary prevention of CVD have resulted in confusion about aspirin recommendations. This review aims to assess the latest guidance on aspirin in CVD prevention and how to identify appropriately at-risk patients who may benefit from low-dose aspirin therapy as part of their CVD preventive healthcare choices. Additionally, this review will provide practical application guidance about clinician-patient conversations to clearly explain the benefits and risks of aspirin use and ensure a patient-centric decision to initiate aspirin therapy.