Mukhtiar Baig

New roles of the multidimensional adipokine: chemerin.

The discovery of several adipokines with diverse activities and their involvement in regulation of various pathophysiological functions of human body has challenged the researchers. In the family of adipokine, chemerin is a novel and unique addition. Ever since the first report on chemerin as a chemo-attractant protein, there are numerous studies showing a multitasking capacity of chemerin in the maintenance of homeostasis, for the activation of natural killer cells, macrophages and dendritic cells in both innate and adaptive immunity. Its diversity ranges from generalized inflammatory cascades to being explicitly involved in the manifestation of arthritis, psoriasis and peritonitis. Its association with certain cancerous tissue may render it as a potential tumor marker. In present review, we aim to consolidate recent data of investigations on chemerin in context to functional characteristics with a special reference to its role as a metabolic signal in inflammation and non-metabolic syndromes.

BRAF gene: From human cancers to developmental syndromes

The BRAF gene encodes for a serine/threonine protein kinase that participates in the MAPK/ERK signalling pathway and plays a vital role in cancers and developmental syndromes (RASopathies). The current review discusses the clinical significance of the BRAF gene and other members of RAS/RAF cascade in human cancers and RAS/MAPK syndromes, and focuses the molecular basis and clinical genetics of BRAF to better understand its parallel involvement in both tumourigenesis and RAS/MAPK syndromes—Noonan syndrome, cardio-facio-cutaneous syndrome and LEOPARD syndrome.

First comprehensive in silico analysis of the functional and structural consequences of SNPs in human GalNAc-T1 gene.

GalNAc-T1, a key candidate of GalNac-transferases genes family that is involved in mucin-type O-linked glycosylation pathway, is expressed in most biological tissues and cell types. Despite the reported association of GalNAc-T1 gene mutations with human disease susceptibility, the comprehensive computational analysis of coding, noncoding and regulatory SNPs, and their functional impacts on protein level, still remains unknown. Therefore, sequence- and structure-based computational tools were employed to screen the entire listed coding SNPs of GalNAc-T1 gene in order to identify and characterize them. Our concordant in silico analysis by SIFT, PolyPhen-2, PANTHER-cSNP, and SNPeffect tools, identified the potential nsSNPs (S143P, G258V, and Y414D variants) from 18 nsSNPs of GalNAc-T1. Additionally, 2 regulatory SNPs (rs72964406 and #x26; rs34304568) were also identified in GalNAc-T1 by using FastSNP tool. Using multiple computational approaches, we have systematically classified the functional mutations in regulatory and coding regions that can modify expression and function of GalNAc-T1 enzyme. These genetic variants can further assist in better understanding the wide range of disease susceptibility associated with the mucin-based cell signalling and pathogenic binding, and may help to develop novel therapeutic elements for associated diseases.

Diseases pattern among patients attending Holy Mosque (Haram) Medical Centers during Hajj 1434 (2013).

Objective: To evaluate the diseases pattern among pilgrims attending the 2 Holy Mosque (Haram) Health Care Centers during the Hajj season 2013 (Hijra 1434). Methods: In this cross-sectional study, data was collected from 2 medical centers located in the Holy Mosque in Makkah city, Saudi Arabia, from the first of Dhul-Hijjah to sixteenth Dhul-Hijjah 1434. The present study was completed in 16 days (6th October to 21st October 2013). Results: Over 16 days, 1008 patients attended the medical centers during Hajj 1434, (2013), out of which 554 (55%) were males and 454 (45%) were females. Most of the patients were Egyptians (n=242, 24%), followed by Saudis (n=116, 11.5%), Pakistani (n=114, 11.3%), Turkish (n=50, 5%), and other nationalities (n=404). According to age distribution, mostly were in the 51-60 years age group (n=237, 23.5%), followed by other age groups. Out of 1008 patients, 842 (83.5%) patients were treated and subsequently discharged, while 166 patients (16.5%) were referred to the tertiary centers. According to the diseases pattern, most of the patients were suffering from respiratory problems (n=177, 17.6%) followed by skin diseases (n=158, 15.7%), gastrointestinal tract (GIT) diseases (n=133, 13.2%), and others. Conclusion: Most of the patients were suffering from respiratory problems followed by skin and GIT diseases, and <25% of patients were referred to tertiary care centers.

Association of serum leptin with bone mineral density in postmenopausal osteoporotic females

Abstract Objective: Present study was designed to find out whether leptin is a predictor of bone mass density (BMD) in premenopausal women (PMW) and postmenopausal osteoporotic women (PMOPW) or it has no association with BMD. Methods: One hundred and ninety two women (98 PMOPW and 94 PMW) were recruited for this study. The control group was BMI matched with osteoporotic subjects. BMD assessment was done on calcaneus by peripheral ultrasound bone densitometry and T scores were determined. Serum leptin levels were measured by enzyme-linked immunosorbent assay (ELISA). Results: Serum leptin and BMD values were significantly different in both groups (leptin, 18.56 ± 8.65 ng/ml versus 21.64 ± 9.80 ng/ml, p = 0.02) and (BMD, −0.70 ± 0.19 versus −3.17 ± 0.59, p = 0.000), respectively. In PMOPW serum leptin and BMD were considerably correlated with weight (lep, r = 0.53, p = <0.001; BMD, r = −0.21, p = 0.02), BMI (lep, r = 0.52, p = <0.001; BMD, r = −0.27, p = 0.005), waist circumference (lep, r = 0.61, p = <0.001; BMD, r = 0.18, p = 0.04), hip circumference (lep, r = 0.58, p = <0.001). Multivariate linear stepwise regression analysis showed that weight and BMI in PMW and PMOPW were independent predictors of BMD. Serum leptin level was not found to be the predictor of BMD in both groups. Conclusion: The present results indicate that body weight and BMI have an impact on BMD while serum leptin is not associated with BMD in PMW and PMOPW.

Utilization of smart phones related medical applications among medical students at King Abdulaziz University, Jeddah: A cross-sectional study

INTRODUCTION The present study explored the utility, attitude, and trends regarding Smartphone related Medical Applications (Apps) among medical students of King Abdulaziz University (KAU) Jeddah, Saudi Arabia (SA) and their perceptions of the impact of Medical Apps in their training activities. SUBJECTS AND METHODS This survey was conducted at the Faculty of Medicine, Jeddah, and Rabigh campuses, KAU, Jeddah, SA. All participants were medical students of 2nd to 6th year. The data was collected by using an anonymous questionnaire regarding the perception of medical students about Medical Apps on the smart devices and the purpose of installation of the Apps. Additionally examined was the use of different Medical Apps by the students to investigate the impact of Medical Apps on the clinical training/practice. Data was analyzed on SPSS 21. RESULTS The opinion of 330/460 medical students from all academic years was included in the study with a response rate of 72%. There were 170 (51.5%) males and 160 (48.5%) females with a mean age of 21.26±1.86 years. Almost all participating students 320 (97%) were well aware of Medical Apps for smart devices and 89.1% had installed different applications on their smart devices. The main usage was for either revision of courses (62.4%) or for looking up of medical information (67.3%), followed by preparing for a presentation (34.5%) and getting the medical news (32.1%). Regarding the impact of Medical Apps, most of the students considered these helpful in clinical decision-making, assisting in differential diagnosis, allowing faster access to Evidence-Based Medical practice, saving time and others. The practical use of these Apps was found to be minimal in medical students. Around 73% were occasional users of Medical Apps, and only 27% were using Medical Apps at least once a day. CONCLUSION The regular use of Medical Apps on mobile devices is not common among medical students of KAU.

Prevalence and attitude of university students towards mobile phone use while driving in Jeddah, Saudi Arabia

ABSTRACT This study aimed to investigate the prevalence and attitude of university students towards mobile phone use while driving. The present study was conducted at King Abdulaziz University, Jeddah, Saudi Arabia. Five hundred and ninety-three participants were recruited for this study. Attitude, consequences and their involvement in various reckless behaviours pertaining to the use of mobile phone while driving were checked by a questionnaire. Overall, the majority of the respondents (90%) use a mobile phone while driving. About half of the participants had experienced consequences regarding texting while driving and had engaged in reckless behaviour. The majority of the students of Faculty of Medicine, Engineering Sciences, Earth Sciences, Administration and Economics and Orientation Classes were more frequently texting while driving (p < .001). The unmarried students were more often texting while driving as compared to married (p < .001). Overall, the majority of the respondents use the mobile phone while driving.

Undergraduate medical research in the Gulf Cooperation Council (GCC) countries: a descriptive study of the students’ perspective

ObjectiveThere is a lack of research-oriented physicians in several Arab countries and especially in Gulf region countries. In this context, it is important to explore medical students’ perceptions and motivations towards research. The aim of the present study was to investigate research attitude, practices, and motivations among medical students from GCC countries.ResultsThere were 228 students who participated in this study (male 88, females 140). Thirty-eight percent of the students were participating from Saudi Arabia, 20.6% from the UAE, 17.1% from Oman, 12.7% from Kuwait and 11.4% from Bahrain. Among participants, 43.0% had experience of funded research, and 53.1% had a contribution to research. The confidence of participants in their ability to interpret and to write a research paper was quite high (70.2%). The majority of the students (87.3%) believed that undergraduate students could conduct research and can present at conferences. Improving research skills, attaining research publication, and improvement in patient care were claimed as the top three motives for conducting research. The majority (75.0%) were compelled to research to facilitate their acceptance to a residency program and 63.6% due to compulsion for a research methodology course.

Perceived stress, reasons for and sources of stress among medical students at Rabigh Medical College, King Abdulaziz University, Jeddah, Saudi Arabia

BackgroundMedical students have high levels of stress that could be due to the daily life stressors and the extra stress of academic burden. The present study investigated the perceived stress level as well as the reasons and sources of stress among medical students at a comparatively newly established medical college affiliated with King Abdulaziz University (KAU), Jeddah, Saudi Arabia (SA).MethodsThe present study was carried out at Rabigh Medical College (RMC), KAU, Jeddah, and completed in 2015. The data was collected by an anonymous self-administered questionnaire that has three components: a list of 33 items of probable stressors, perceived stress scale, and demographic information and academics.ResultsThe response rate in our study was 86% (152/176), the mean age was 20.35 ± 1.09, 77 (51%) were from preclinical years and 75 (49%) from clinical years. The mean PSS score among our participants was 28.5 ± 3.8 with a median of 28.0 (IQR 26.0–31.0) and 59.2% of participants were stressed. The mean PSS score 30.6 ± 4.4 for students with sibling > 5 was significantly higher as compared to the mean PSS score (27.9 ± 3.3) for students with sibling ≤5. Similarly, the mean PSS score (32.0 ± 3.4) of students with often/always occurrence of psychosocial stressors was higher as compared to the mean PSS score (28.3 ± 3.7) of those students with less than a frequent occurrence of stressors. Moreover, those students that were more stressed had lower marks in the last exam (< 80%) as compared to students with less stress who had higher marks (≥80%) (P < .05).Performance in practicals, examinations frequency, disappointment with the class lectures, lack of personal interest in medicine, lengthy academic curriculum/syllabus, worries about the future and periodic examinations performance were rated as severe.The logistic regression analysis showed that stress cases were linked with last exam marks [OR 1.26, 95% CI 0.64–2.48], number of siblings [OR 2.27, 95% CI 0.97–5.27], and academic stressor [OR 2.02, 95% CI 0.61–6.66] but no significant relationship was found.ConclusionThere were high-stress levels among the participants of this study, and the main stressors were academic-related.

Association between leptin, obesity, hormonal interplay and male infertility

Male infertility is a major health problem worldwide. We investigated a possible association between leptin, obesity, hormonal interplay and male infertility. This cross‐sectional study of 313 males (178 infertile and 135 fertile) was carried out in 2017. The subjects were categorised by body mass index (BMI) and body fat percentage (BF%) into normal weight, overweight and obese. Significantly higher levels of BMI and BF% (p‐value < 0.001) and lower levels of FSH, LH, testosterone, and SHBG (p‐value < 0.001) were found in infertile males. However, no significant difference was observed in leptin levels (p‐value = 0.35). Leptin levels were significantly higher, and all the sex hormones were significantly lower (p‐value < 0.001) in obese subjects, whereas according to BF% only leptin, FSH and SHBG were significantly different. Leptin showed a significant positive correlation with BMI and BF% (p < 0.001). A strong positive link to serum testosterone was found with age, FSH, and LH (p < 0.001) and a negative one with BMI and BF% (p < 0.001). In mutivariable anlaysis, after adjusting for the other covariates, a significant association between FSH and testosterone (p‐value <0.001) was found. Serum leptin levels did not differ significantly in fertile and infertile groups, and no association was found with infertility. Furthermore, male obesity was found to be associated with infertility with the decrease in levels of sex hormones.