The incidence of berry aneurysm in the Iranian population: an autopsy study

Intracranial berry aneurysms are the most common kind of aneurysms in the brain, and are caused by head trauma in 1% of cases. They may remain asymptomatic for a long time or may rupture and cause intracranial hemorrhage. These aneurysms are associated with a high mortality rate. A definitive diagnosis can be made by angiography or autopsy. We studied the cadavers of 425 people who passed away accidentally. The number and location of berry aneurysms were recorded. Twelve cases (2.82%) were found to have a single berry aneurysm and two (0.47%) had multiple aneurysms. The aneurysms had a tendency to occur in the frontal half of the Circle of Willis and in approximation of the bifurcation of arteries. The main characteristics of cases of berry aneurysm in the Iranian population were in agreement with that reported in previous Western studies.     

Thiazolyl N-benzyl-substituted acetamide derivatives: synthesis, Src kinase inhibitory and anticancer activities

KX2-391 (KX-01/Kinex Pharmaceuticals), N-benzyl-2-(5-(4-(2-morpholinoethoxy)phenyl)pyridin-2-yl)acetamide, is a highly selective Src substrate binding site inhibitor. To understand better the role of pyridine ring and N-benzylsubstitution in KX2-391 and establish the structure-activity relationship, a number of N-benzyl substituted (((2-morpholinoethoxy)phenyl)thiazol-4-yl)acetamide derivatives containing thiazole instead of pyridine were synthesized and evaluated for Src kinase inhibitory activities. The unsubstituted N-benzyl derivative (8a) showed the inhibition of c-Src kinase with GI₅₀ values of 1.34 μM and 2.30 μM in NIH3T3/c-Src527F and SYF/c-Src527F cells, respectively. All the synthesized compounds were evaluated for inhibition of cell proliferation of human colon carcinoma (HT-29), breast carcinoma (BT-20), and leukemia (CCRF-CEM) cells. 4-Fluorobenzylthiazolyl derivative 8b exhibited 64-71% inhibition in the cell proliferation of BT-20 and CCRF cells at concentration of 50 μM.     

Design,synthesis, and evaluation of novel cinnamic acid-tryptamine hybrid for inhibition of acetylcholinesterase and butyrylcholinesterase

BackgroundAcetylcholine deficiencies in hippocampus and cortex, aggregation of β-amyloid, and β-secretase over activity have been introduced as main reasons in pathogenesis of Alzheimer’s disease.MethodsColorimetric Ellman’s method was used for determination of IC₅₀ value in AChE and BChE inhibitory activity. The kinetic studies, neuroprotective and β-secretase inhibitory activities, evaluation of inhibitory potency on β-amyloid (Aβ) aggregations induced by AChE, and docking study were performed for prediction of the mechanism of action.Result and discussionA new series of cinnamic acids-tryptamine hybrid was designed, synthesized, and evaluated as dual cholinesterase inhibitors. These compounds demonstrated in-vitro inhibitory activities against acetyl cholinesterase (AChE) and butyryl cholinesterase (BChE). Among of these synthesized compounds, (E)-N-(2-(1H-indol-3-yl)ethyl)-3-(3,4-dimethoxyphenyl)acrylamide (5q) demonstrated the most potent AChE inhibitory activity (IC₅₀ = 11.51 μM) and (E)-N-(2-(1H-indol-3-yl)ethyl)-3-(2-chlorophenyl)acrylamide (5b) were the best anti-BChE (IC₅₀ = 1.95 μM) compounds. In addition, the molecular modeling and kinetic studies depicted 5q and 5b were mixed type inhibitor and bound with both the peripheral anionic site (PAS) and catalytic sites (CAS) of AChE and BChE. Moreover, compound 5q showed mild neuroprotective in PC12 cell line and weak β-secretase inhibitory activities. This compound also inhibited aggregation of β-amyloid (Aβ) in self-induced peptide aggregation test at concentration of 10 μM.ConclusionIt is worth noting that both the kinetic study and the molecular modeling of 5q and 5b depicted that these compounds simultaneously interacted with both the catalytic active site and the peripheral anionic site of AChE and BChE. These findings match with those resulted data from the enzyme inhibition assay. Graphical abstractOpen in a separate windowA new series of cinnamic-derived acids-tryptamine hybrid derivatives were designed, synthesized and evaluated as butyrylcholinesterase (BChE) and acetylcholinesterase (AChE) inhibitors and neuroprotective agents. Compound 5b and 5q, as the more potent compounds, interacted with both the peripheral site and the choline binding site having mixed type inhibition. Results suggested that derivatives have a therapeutic potential for the treatment of AD.Electronic supplementary materialThe online version of this article (10.1007/s40199-020-00346-9) contains supplementary material, which is available to authorized users.     

Sublingual versus vaginal misoprostol for second trimester termination: a randomized clinical trial

Purposes

To evaluate the efficacy of two routes of administration of misoprostol (sublingual and vaginal) for medical termination of second trimester pregnancies.

Methods

One hundred and thirty-four women referred for second trimester termination were enrolled in this randomized clinical trial. They were divided to receive 400 μg every 6 h misoprostol either sublingually or vaginally. They were followed for 48 h, at which point they underwent D&C if the termination was not complete. Efficacy was defined as successful termination without the need for interventions.

Results

There were no differences between the vaginal and sublingual groups in terms of tablets mean dose of misoprostol applied (1360 ± 2.4 vs. 1320 ± 2.3) or endometrial thickness after termination of pregnancy (13.02 ± 5.2 vs. 13.3 ± 6.6 mm). The success rate was 61.2 % (n = 41) in the vaginal group versus 70.1 % (n = 47) in the sublingual group (p = 0.3). Twenty-six patients (38.8 %) in the vaginal group underwent D&C due to retained tissue, compared with 20 patients (29.8 %) in the sublingual group. In primigravids, the success rate was significantly higher in the sublingual group than vaginal group. There was no significant difference with regards to complications between the two groups.

Conclusion

The sublingual route of misoprostol administration has the same efficacy as the vaginal route and can be applied for second trimester pregnancy termination in primigravid women in outpatient settings due to its simple administrations.     

The Relationship Between Social Intelligence and Death Anxiety Among Elderly People Living in Iranshahr,Iran

Social relationships may influence overall health and death anxiety’s occurrence among elderly people. This study aims to further explore the relationship between social intelligence and death anxiety to increase the understanding of factors influencing the health in elderly populations. 100 elderly subjects living in Iranshahr, Iran, were enrolled in this cross-sectional study to complete Templer’s Death Anxiety Scale and the Tromso Social Intelligence Scale. Social intelligence was found to have a negative relationship with the death anxiety (p > 0/005). The negative relationship between social intelligence and death anxiety suggests further strategies to promote social intelligence in the elderly population.     

Role of ventral hippocampal NMDA receptors in anxiolytic-like effect of morphine

The possible role of ventral hippocampal N-methyl-d-aspartate (NMDA) receptors on morphine-induced anxiolytic-like behavior in an elevated plus maze (EPM) task was investigated in the present study. Adult male mice (7 per group) with cannulas aimed at the ventral hippocampus (VH) received NMDA or a competitive NMDA receptor antagonist D-AP5 with or without morphine and 30 min later were subjected to an EPM task. Intraperitoneal injection (i.p.) of morphine (3-9 mg/kg) increased the percentage of open arm time (%OAT) and open arm entries (%OAE), which suggested an anxiolytic-like effect. Intra-VH microinjection of NMDA (0.5-1 μg/mouse) with an ineffective dose of morphine (3 mg/kg, i.p.) significantly increased %OAT and %OAE. However, microinjections of the same doses of NMDA into the VH in the absence of morphine had no effect on %OAT and %OAE. Intra-VH microinjection of D-AP5 (0.5-2 μg/mouse) decreased the anxiolytic-like effect of morphine, while intra-VH microinjection of the same doses of D-AP5 alone increased %OAT and %OAE, which indicated an anxiolytic response. Furthermore, intra-VH microinjection of D-AP5 reversed the effect of NMDA response to the administration of a lower morphine dose as seen in the EPM task. It should be noted that intra-VH microinjection of D-AP5 plus NMDA, 5 min before morphine increased locomotor activity, while other treatments had no effect on this parameter. The results suggest that VH-NMDA receptors participate in the mediation of morphine-induced anxiolytic-like behavior.     

Investigating and Comparing the Effect of Teach-Back and Multimedia Teaching Methods on Self-Care in Patients With Diabetic Foot Ulcers

This study evaluated the effect of teach-back and multimedia teaching methods versus routine care on the self-care of patients with diabetic foot ulcers. Patients receiving either the teach-back or multimedia interventions had greater improvement in self-care scores than those receiving routine care. Both the teach-back and multimedia teaching methods were found to be effective in enhancing the self-care of people with diabetes.

People with diabetes (PWD) account for 7–8% of the total population in Iran (1). PWD are exposed to severe complications such as mental physical problems, including vascular disorders and peripheral neuropathy resulting in diabetic foot ulcers (2–5). Although the number of deaths caused by diabetes complications has decreased in recent years, the number of disabilities caused by diabetes remains high; for example, >70% of amputations are the result of diabetes (6).Diabetic foot ulcers are one of the most important and most common complications of diabetes and the main cause of hospitalization of these patients. Foot ulcers also impose the highest hospital costs on PWD (7). The World Health Organization describes “diabetic foot” as the foot of a person with diabetes who has neurological disorders, some degree of vascular involvement, and susceptibility to infection and ulcer, with or without degradation of deep tissues (8). Diabetic foot ulcers are slow to heal and can disrupt the lifestyle, social activities, health, and quality of life of patients and their caregivers (9). Because of the prevalence of foot ulcers in PWD, we need supportive programs to prevent and control this complication (10).Four risk factors are involved in the development of foot ulcers, including neuropathy, foot deformity, history of previous foot ulcer, and decreased foot circulation. People with these risk factors should receive specific ulcer treatments and implement effective plans to prevent relapse once an ulcer has healed. All PWD—even those without risk factors—need to take good care of their feet because even minor cases can lead to serious problems in these patients (11).Recent studies have shown that several risk factors may be associated with the development of diabetic foot ulcers. Foot ulcers are more common in males, people with longer duration of diabetes (>10 years), older people, those with higher BMIs, and people with other diabetes-associated diseases such as retinopathy, neuropathy, peripheral vascular disease, foot decay, excessive pressure on the soles of the foot (such as from inappropriate shoes and anatomical problems), malnutrition, and infection (12).Diabetes is a chronic disease requiring lifelong adjustment (13). Hence, PWD are expected to carry out rigorous self-care behaviors throughout their life. Evidence has shown that a lack of information and skills needed to manage chronic disease conditions is one of the most important causes of patient noncompliance with treatment and recommendations such as for healthy eating (2).The main goal of diabetes treatment is not only to remove the physical signs and symptoms of the disease, but also to improve the overall quality of life of patients. Self-care is the foundation of health promotion and disease prevention. Thus, providing a self-care educational program helps patients improve their self-care abilities and reduce their fear and dependence, thus enhancing their self-esteem and independence (14). Facilitating the process of self-care can improve the health, economic, and social status of the entire community (15). In addition to reducing hospitalizations, appropriate self-care can prevent many other problems for patients (16). For these reasons, training has a special place in the diabetes treatment process. Having complete information about the overall disease and care is one of the most important rights of patients, and today, patient training is one of the most important care roles and responsibilities of nurses in enhancing patients’ health and ability to adapt to the effects of the disease (17).Training patients via electronic platforms is a new teaching method that allows for the transfer of the concepts and materials in a simpler, more accessible, and more appealing manner. Digital education can involve text, sounds, images, and video elements (18). One form of modern digital teaching is known as the multimedia method (17,19). Multimedia is considered to be an individual teaching method. It is a type of e-learning in which learners learn how to learn (20). Another teaching approach to ensure patient understanding and retention of information is the teach-back method (21). Studies conducted by Oshvandi et al. (22) on heart failure, diabetes, and dialysis patients, respectively, showed that the teach-back teaching increased patients’ self-care behaviors. None of the studies in this area to date have compared the effects of the two teaching methods (teach-back and multimedia) on self-care in PWD.