Comprehension of premarital screening and genetic disorders among the population of Riyadh

Objective

Premarital, unfortunately, does not cover all possible genetic diseases, such as deafness and congenital heart diseases, diabetes mellitus, and hypertension, nor does it cover unknown genetic mutations that may cause severe defects in subsequent generations. However, the Saudi population has limited knowledge regarding premarital screening tests, which do not detect all genetic disorders or diseases. Hence, we aimed to explore the knowledge and attitudes among the population of Riyadh toward premarital screening.

Methods

A cross-sectional observational study was conducted with a self-administered designed questionnaire. The survey included questions regarding sociodemographic data, genetics, genetic testing, and premarital screening. All data were entered and analyzed in the statistical package SPSS version 22.

Results

A total of 385 participants responded to the questionnaire, and good knowledge among most participants was significantly associated with education level (p < 0.001), sex (p < 0.001), and prior screening (p = 0.001). The overall attitude was positive toward premarital screening, and significant associations of sex and social/marital status with a positive response to premarital screening were observed.

Conclusion

Knowledge and attitudes among the population of Riyadh toward premarital screening must be improved through national awareness programs. In light of our results, a need exists to provide more information and education regarding screening. Further studies must be conducted in urban areas to investigate the level of satisfaction with existing programs.

Impact of Omega-3 supplementation on homocysteine levels in humans: A systematic review and meta-regression analysis of randomized controlled trials

AIMS

Although some evidence suggests that omega-3 polyunsaturated fatty acids (PUFAs) supplementation influences enzymes involved in forming homocysteine (Hcy) and improving hyperhomocysteinemia, these findings are still contradictory in humans. The aim of this systematic and meta-analysis study was to investigate the effects of omega-3 supplementation on Hcy using existing randomized controlled trials (RCTs).

DATA SYNTHESIS

Available databases, including PubMed/MEDLINE, Web of Science, Scopus, Cochrane Library, and Embase, were searched to find relevant RCTs up to June 2021. The effect size was expressed as weighted mean difference (WMD) and 95% confidence interval (CI).

CONCLUSION

A total of 20 RCT studies with 2676 participants were included in this article. Our analyses have shown that omega-3 supplementation significantly reduced plasma Hcy levels (WMD: 1.34 μmol/L; 95% CI: 1.97 to -0.72; P < 0.001) compared to the control group. The results of subgroup analysis showed that omega-3 supplementation during the intervention <12 weeks and with a dose ≥3 gr per day causes a more significant decrease in Hcy levels than the intervention ≥12 weeks and at a dose <3 gr. In addition, omega-3 supplements appear to have more beneficial effects in individuals with high levels of normal Hcy. This meta-analysis showed that omega-3 supplementation significantly improved Hcy. However, further studies are needed to confirm the findings.

Impact of low-protein diet on cardiovascular risk factors and kidney function in diabetic nephropathy: A systematic review and meta-analysis of randomized-controlled trials

AIM

To assess the efficacy of low-protein diets (LPD) on cardiovascular risk factors and kidney function in diabetic nephropathy (DN) based on randomized controlled trials (RCTs).

METHODS

A comprehensive systematic search was undertaken in PubMed/MEDLINE, Web of Science, SCOPUS and Embase databases from inception until January 2022 without using time or language restrictions. RCTs which reported the effects of LPD on cardiovascular risk factors and kidney function in DN were considered.

RESULTS

The results of the present study showed that a LPD significantly reduces urinary urea (WMD: -244.49 g/day, 95 % CI: -418.83, -70.16, P = 0.006) and HbA1c (WMD: -0.20, 95 % CI: -0.39, -0.01, P = 0.036) levels. However, the results did not show neither significant nor beneficial effect on other renal function and cardiovascular risk factors. Furthermore, the results of subgroup analysis showed LPD caused a further decrease in HbA1c during the follow-up period of ≤ 24 weeks, protein intake less than 0.8 g/kg/d and in individuals younger than 50 years. Albuminuria also showed a greater reduction in people under the age of 50 with type 1 diabetes (DMT1) following a LPD.

CONCLUSION

The results of the present study showed that LPD significantly reduces urinary urea and HbA1c.

Low fat diet versus low carbohydrate diet for management of non-alcohol fatty liver disease: A systematic review

Although there is a consensus on beneficial effects of a low calorie diet in management of non-alcoholic fatty liver disease, the optimal composition of diet has not yet been elucidated. The aim of this review is to summarize the results of current randomized controlled trials evaluating the effects of low fat diet (LFD) vs. low carbohydrate diet (LCD) on NAFLD. This is a systematic review of all the available data reported in published clinical trials up to February 2022. The methodological quality of eligible studies was assessed, and data were presented aiming specific standard measurements. A total of 15 clinical trial studies were included in this systematic review. There is an overall lack of consensus on which dietary intervention is the most beneficial for NAFLD patients. There is also an overall lack of consensus on the definition of the different restrictive diets and the percentage of macronutrient restriction recommended. It seems that low calorie diets, regardless of their fat and carbohydrate composition, are efficient for liver enzyme reduction. Both LCD and LFD have similar effects on liver enzymes change; however, this improvement tends to be more marked in LFD. All calorie restrictive dietary interventions are beneficial for reducing weight, liver fat content and liver enzymes in individuals with NAFLD. Low fat diets seem to be markedly successful in reducing transaminase levels. Further research is needed to explore diet intensity, duration and long-term outcome.

Association of chromosome 6 open reading frame 106 in different cancers

Introduction: Cancer is the leading cause of death globally according to WHO in 2020. It is initiated by genetic mutations that occur due to numerous factors. The aim of the review: This review provides a clear view of the potential use of chromosome 6 open reading frame 106 (C6orf106) as a biomarker, based on previous studies. Results: Recent studies have investigated the association of C6orf106 with breast cancer and non-small cell lung cancer and showed that silencing C6orf106 leads to inhibition of malignancy in both diseases, as well as showing a positive correlation between C6orf106 expression and malignancy. Other studies demonstrated the interaction of C6orf106 with other malignancy factors that play a role in many cancer types, such as cyclin A2, cyclin B1, N-cadherin, E-cadherin, c-MYC, p120ctn, and vimentin. These factors play a significant role in cellular adhesion and the regulation of the cell cycle. C6orf106 is a potential target for numerous cancers, not only non-small cell lung cancer and breast cancer. In conclusion: understanding the connection of C6orf106 with crucial malignancy factors makes it clear that C6orf106 is a potential therapeutic target and diagnostic biomarker for many disease cancer.

Gut Hormones in Health and Obesity: The Upcoming Role of Short Chain Fatty Acids

We are currently facing an obesity pandemic, with worldwide obesity rates having tripled since 1975. Obesity is one of the main risk factors for the development of non-communicable diseases, which are now the leading cause of death worldwide. This calls for urgent action towards understanding the underlying mechanisms behind the development of obesity as well as developing more effective treatments and interventions. Appetite is carefully regulated in humans via the interaction between the central nervous system and peripheral hormones. This involves a delicate balance in external stimuli, circulating satiating and appetite stimulating hormones, and correct functioning of neuronal signals. Any changes in this equilibrium can lead to an imbalance in energy intake versus expenditure, which often leads to overeating, and potentially weight gain resulting in overweight or obesity. Several lines of research have shown imbalances in gut hormones are found in those who are overweight or obese, which may be contributing to their condition. Therefore, this review examines the evidence for targeting gut hormones in the treatment of obesity by discussing how their dysregulation influences food intake, the potential possibility of altering the circulating levels of these hormones for treating obesity, as well as the role of short chain fatty acids and protein as novel treatments.