1.A novel homozygous splicing mutation in AK7 causes multiple morphological abnormalities of sperm flagella in patients from consanguineous Pakistani families.
Ansar HUSSAIN ; Huan ZHANG ; Muhammad ZUBAIR ; Wasim SHAH ; Khalid KHAN ; Imtiaz ALI ; Yousaf RAZA ; Aurang ZEB ; Tanveer ABBAS ; Nisar AHMED ; Fazal RAHIM ; Ghulam MUSTAFA ; Meftah UDDIN ; Nadeem ULLAH ; Musavir ABBAS ; Muzammil Ahmad KHAN ; Hui MA ; Bo YANG ; Qing-Hua SHI
Asian Journal of Andrology 2025;27(2):189-195
Multiple morphological abnormalities of the flagella (MMAF) represent a severe form of sperm defects leading to asthenozoospermia and male infertility. In this study, we identified a novel homozygous splicing mutation (c.871-4 ACA>A) in the adenylate kinase 7 (AK7) gene by whole-exome sequencing in infertile individuals. Spermatozoa from affected individuals exhibited typical MMAF characteristics, including coiled, bent, short, absent, and irregular flagella. Transmission electron microscopy analysis showed disorganized axonemal structure and abnormal mitochondrial sheets in sperm flagella. Immunofluorescence staining confirmed the absence of AK7 protein from the patients' spermatozoa, validating the pathogenic nature of the mutation. This study provides direct evidence linking the AK7 gene to MMAF-associated asthenozoospermia in humans, expanding the mutational spectrum of AK7 and enhancing our understanding of the genetic basis of male infertility.
Humans
;
Male
;
Sperm Tail/ultrastructure*
;
Homozygote
;
Consanguinity
;
Asthenozoospermia/pathology*
;
Infertility, Male/genetics*
;
Mutation
;
Pakistan
;
Adenylate Kinase/genetics*
;
Adult
;
Pedigree
;
RNA Splicing
;
Exome Sequencing
;
Spermatozoa
2.Novel bi-allelic variants in DNAH10 lead to multiple morphological abnormalities of sperm flagella and male infertility.
Muhammad SHOAIB ; Muhammad ZUBAIR ; Wasim SHAH ; Meftah UDDIN ; Ansar HUSSAIN ; Ghulam MUSTAFA ; Fazal RAHIM ; Huan ZHANG ; Imtiaz ALI ; Tanveer ABBAS ; Yousaf RAZA ; Sui-Xing FAN ; Qing-Hua SHI
Asian Journal of Andrology 2025;27(4):516-523
Multiple morphological abnormalities of sperm flagella (MMAF) is a severe form of asthenoteratozoospermia, characterized by morphological abnormalities and reduced motility of sperm, causing male infertility. Although approximately 60% of MMAF cases can be explained genetically, the etiology of the remaining cases is unclear. Here, we identified two novel compound heterozygous variants in the gene, dynein axonemal heavy chain 10 ( DNAH10 ), in three patients from two unrelated Pakistani families using whole-exome sequencing (WES), including one compound heterozygous mutation ( DNAH10 : c.9409C>A [p.P3137T]; c.12946G>C [p.D4316H]) in family 1 and another compound heterozygous mutation ( DNAH10 : c.8849G>A [p.G2950D]; c.11509C>T [p.R3687W]) in family 2. All the identified variants are absent or rare in public genome databases and are predicted to have deleterious effects according to multiple bioinformatic tools. Sanger sequencing revealed that these variants follow an autosomal recessive mode of inheritance. Hematoxylin and eosin (H&E) staining revealed MMAF, including sperm head abnormalities, in the patients. In addition, immunofluorescence staining revealed loss of DNAH10 protein signals along sperm flagella. These findings broaden the spectrum of DNAH10 variants and expand understanding of the genetic basis of male infertility associated with the MMAF phenotype.
Adult
;
Humans
;
Male
;
Alleles
;
Asthenozoospermia/pathology*
;
Axonemal Dyneins/genetics*
;
Dyneins/genetics*
;
Exome Sequencing
;
Infertility, Male/pathology*
;
Mutation
;
Pakistan
;
Pedigree
;
Sperm Tail/pathology*
3.Colonic duplication in an adult with chronic constipation: a case report and review of its surgical management
Muhammad Ash-Shafhawi ADZNAN ; Hizami Amin TAI ; Aras Emre CANDA ; Nevra ELMAS ; Mustafa Cem TERZI
Annals of Coloproctology 2024;40(Suppl 1):S6-S10
One of the possible causes of chronic constipation is colonic duplication. Although seldom asymptomatic, its diagnosis is important due to the risk of malignancy that it carries. We present a case of a young female patient with long-standing constipation who was referred to Kolorektal Cerrahi Clinic (Izmir, Turkey) after scans revealed tubular type of colonic duplication. We successfully performed a laparoscopic total colectomy, and she recovered well. Identifying the type of duplication is important to ensure adequate resection and treatment. A proper workup, including carcinoembryonic antigen levels, must be done as well. Multiple surgical techniques and procedures have been introduced for this condition, but resection of the duplicated colon with its native lumen should be the management of choice, especially in tubular type of duplications such as in our case. In centers where laparoscopic services are available, laparoscopy could be a better option, as it provides multiple benefits of minimally invasive surgery. Attention should also be paid to anatomical details during surgery to ensure better results and outcomes.
4.Nabais Sa-de Vries Syndrome and Thalassemia: An Undiscovered Concurrence of SPOP and HBB Genetic Mutation
Matloob Alam MUHAMMAD ; Abdulrhman ALATHAIBI ; Badriah Gharamah ALASMARI ; Aljabri MOHAMMAD ; Kashif MUHAMMAD ; Riffat MATLOOB ; Mustafa Mohamed SELIM
Clinical Pediatric Hematology-Oncology 2024;31(1):14-19
Nabais Sa-de Vries syndrome (NSDVS) is a neurodevelopmental disorder first described in 2020. The syndrome is caused by de novo missense mutations in speckle-type pox virus and zinc finger protein (SPOP) on chromosome 17q21. In this report, we present a four-year-old girl who had microcephaly, a long face, a wide and thick arched eyebrow, widely spaced eyes, a prominent and wide nasal bridge, a wide and bulbous nasal tip, micrognathia and pointed chin. She also had microcytic hypochromic anemia. Her clinical features are suspected of NSDVS1 and thalassemia along with refractory iron deficiency anemia. Genetic evaluation confirmed the presence of both SPOP and hemoglobin gene mutations. The concurrence of both genetic mutations and above hematological manifestations has not been reported previously thus further studies are needed to better understand the associated mechanisms and disease course involved.
5.Assessment Of Gingival Phenotype At The Aesthetic Zone In A Malay Population Using Probe Test
Muhammad Azat Awang@Semail ; Abdul Shukur Mustafa ; Munirah Yaacob ; Juzaily Husain ; Noorhazayti Ab. Halim
Malaysian Journal of Medicine and Health Sciences 2023;19(No.4):148-152
Introduction: The gingival phenotype (GP) of teeth at the aesthetic zone often influences dental rehabilitation plans
and treatment outcomes. This study aimed to assess the prevalence of GP in the Malay population in relation to gender and age. Methods: The GP of 100 patients were determined using the Probe test method. Other clinical parameters were assessed include crown width/crown length (CW/CL) ratio, tooth morphology and width of keratinised
tissue. Periodontal parameters were assessed by two calibrated examiners. Data were analysed using descriptive
statistics, one-way ANOVA and Kruskal-Wallis test. Results: A higher prevalence of thick GP was found at the maxilla for both genders, whereas a thin phenotype was observed at the mandible. At maxilla, both thick and thin GP
were found in all age groups, while the mandible showed a higher prevalence of thin GP. Significant differences in
GP were found between males and females for mandibular and maxillary anterior teeth and the mandibular lateral
incisor (p<0.05), while no significant difference was found for other parameters assessed; age group, CW/CL, tooth
morphology and WKT. Conclusion: Thicker GP is more prevalent in male population and at maxillary anterior. Mandibular anterior GP presented commonly with a thin GP regardless of gender or age-group.
6.Perceived attitudes and barriers towards medical research: a survey of Jordanian interns, residents, and other postgraduates
Jamil ALMOHTASIB ; Leen AL-HUNEIDY ; Hana TAHA ; Rama RAYYAN ; Shahd MANSOUR ; Jehad SAMHOURI ; Muhammad HAMMOURI ; Hussam AL-SOMADI ; Adees Wirtan BEDROS ; Jaafar AL-OMAIR ; Rand ABBAS ; Mustafa Ibrahim ABU-USBA ; Abdallah AL-ANI
Korean Journal of Medical Education 2023;35(3):249-261
Purpose:
We investigated research barriers among Jordanian medical postgraduates to understand the current context of the local health research landscape and improve scholarly output.
Methods:
Using a validated questionnaire, Jordanian interns, residents, specialists, and consultants were examined for their perceived attitudes and barriers towards research. Participants were conveniently sampled from public, university, military, and private institutions. Differences in responses were examined using the Student t-test and analysis of variance. Binary logistic regression was utilized to examine predictors of being able to publish.
Results:
A total of 1,141 Jordanian medical postgraduates were recruited, of which 61.3% were junior postgraduates (i.e., interns and residents in their first 2 years of residency) while 38.7% were senior postgraduates (i.e., senior residents, specialists, and consultants). Around 76.0% of participants had no peer-reviewed publications. Of those with least one publication (n=273), only 31.1% had first authorships. Participants portrayed dominantly positive attitudes towards the importance of research. There were no significant differences between junior and senior postgraduates for overall attitudes (p=0.486) and knowledge barriers scores (p=0.0261). Conversely, senior postgraduates demonstrated higher mean organizational barriers (p<0.001). Seniority (odds ratio [OR], 5.268; 95% confidence interval [CI], 3.341–8.307), age (OR, 1.087; 95% CI, 1.019–1.159), academic standing (OR, 1.730; 95% CI, 1.103–2.715), and confidence (OR, 1.086; 95% CI, 1.009–1.169) were positive predictors of publication in peer reviewed journals.
Conclusion
The Jordanian medical research landscape is riddled with all forms of different barriers. The reworking of current and integration of new research training programs are of utmost importance.
7.Emotional Empathy and Altruism among Health Professionals
Saira Khan ; Marriam Ihsan ; Sehrish Farooq ; Muhammad Maqsood Iqbal ; Marriam Rubab M
ASEAN Journal of Psychiatry 2022;23(no. 2):1-6
Objective:
In the present study the empathy-altruism hypothesis was studied. According to empathy-altruism hypothesis, altruistic acts stimulated by empathy, are directed to improve another person's welfare. Purpose of this study was to investigate the relationship of the emotional empathy and altruism and to determine the predictive power of emotional empathy for altruism among health professionals.
Methods:
Correlational and cross-sectional research designs were used for the present study. Sample size was estimated through G*power and 200 health professionals (100 MBBS and 100 BDS) were taken from different government and private hospitals and health institutes through purposive sampling technique. Age range of participants was 24-35 years (M=31.45, SD=3.39). Bio data form, Multidimensional Emotional Empathy Scale and Helping attitude scale were used to get demographic information and to assess the emotional empathy and altruistic behaviour respectively of health professionals. Data were analysed by using SPSS 23.
Results:
Results of the present study showed strong and positive relationship between emotional empathy and altruism among health professionals. Hierarchical regression analysis was run to find the predictive power of emotional empathy for altruistic behaviour of the health professionals. After controlling age, gender, level of education and marital status, emotional empathy emerged as the strong predictor for altruistic behaviour among health professional. Emotional empathy accounted 31.3 % variance for altruistic behaviour. This study can create awareness about the role of health professionals and their behaviour towards patients. Health professional’s emotional empathy is the compulsory factors for defining their attitude towards their patients.
Conclusion
Emotional empathy plays an important role in the altruistic attributes of health professionals. Some training programs must be arranged to enhance their emotional empathy
8.Mesopic Pupillometry in Pre-LASIK Patients by a Placido-Disc Topographer and Hartmann-Shack Aberrometer
Md Mustafa Md-Muziman-Syah ; Muhammad Aiman Suhaimi ; Umar Hakimi Sulaiman ; Noorhazayti Ab. Halim ; Ahmad Tajudin Liza-Sharmini ; Khairidzan Mohd Kamal
Malaysian Journal of Medicine and Health Sciences 2021;17(No.2):197-202
Introduction: Precise pupillometry is crucial to determine ablation optical zone (OZ) size selection in LASIK. Significant difference in the selection induces unwanted postoperative night visual disturbance. Placido-disc topographer
and Hartmann-Shack aberrometer are commonly used in LASIK preoperative assessment. However, little is known
on the precision and agreement of these devices in pupillometry. Hence, this study aimed to evaluate the precision
(repeatability and reproducibility) and inter-device agreement of a Placido-disc topographer and Hartmann-Shack
aberrometer in measuring mesopic pupil size in pre-LASIK patients. Methods: Mesopic pupillometry on 38 pre-LASIK
patients were performed using both devices by two masked operators, on two separate sessions. Intra-session repeatability, inter-operator reproducibility and inter-device agreement were analysed. A disagreement value of ±0.5 mm
and 95% limits of agreement (LoA) were determined. Results: Hartmann-Shack aberrometer demonstrated higher
repeatability and reproducibility than Placido-disc topographer in mesopic pupillometry. Ninety-seven percent and
all of Hartmann-Shack wavefront aberrometer pupillometry were within ±0.5 mm in repeated sessions and between
the operators, respectively. The mesopic pupil size obtained from Placido-disc topographer was significantly larger
than Hartmann-Shack aberrometer results (P = 0.02). The agreement between devices was low (LoA > ±1 mm) and
only 53% of Placido-disc topographer pupillometry were within ±0.5 mm of Hartmann-Shack aberrometer pupillometry. Conclusion: Hartmann-Shack aberrometer has higher precision within sessions and between operators, and
it provides smaller mesopic pupillometry than Placido-disc topographer. Precise mesopic pupillometry could assist
refractive surgeons in choosing a correct ablation OZ size during LASIK surgery to improve postoperative outcome.
9.Lung computed tomography patterns of a cluster of asymptomatic young males with COVID-19 admitted to a teaching hospital in Kuala Lumpur
Boon Hau Ng ; Nik Nuratiqah Nik Abeed ; Andrea Ban Yu Lin ; Mohamed Faisal Abdul Hamid ; Lydia Kamaruzaman ; Muhammad Yusuf Abu Shamsi ; Halim Gafor ; Norlaila Mustafa, ; Wan Nur Nafisah Wan Yahya ; Shahrul Azmin ; Khoo Ching Soong ; Hemalatha Munusamy ; Zhen Hao Ching ; Hsueh Jing Low ; Petrick Periyasamy
The Medical Journal of Malaysia 2020;75(4):368-371
Background and objective: Coronavirus Disease 2019 (COVID19) was first reported in Malaysia in March 2020. We describe
here the clinical characteristics and computed tomography
(CT) patterns in asymptomatic young patients who had
laboratory-confirmed COVID-19.
Methods: This is a retrospective observational study where 25
male in-patients with laboratory-confirmed COVID-19 in
Hospital Canselor Tuanku Muhriz. Demographics, clinical
data and CT images of these patients were reviewed by 2 senior
radiologists.
Results: In total there were 25 patients (all males; mean age
[±SD], 21.64±2.40 years; range, 18-27 years). Patients with
abnormal chest CT showed a relatively low normal absolute
lymphocytes count (median: 2.2 x 109/L) and absolute
monocyte count (median: 0.5 x 109/L). Lactate dehydrogenase
was elevated in 5 (20%) of the patients. The procalcitonin level
was normal while elevated levels of alanine aminotransferase,
total bilirubin, platelet and C-reactive protein were common.
Baseline chest CT showed abnormalities in 6 patients. The
distribution of the lesions were; upper lobe 3 (12%) lower lobe
3 (12%) with peripheral distribution 4 (16%). Of the 25
patients included, 4 (16%) had ground glass opacification
(GGO), 1 (4%) had a small peripheral subpleural nodule, and
1 (4%) had a dense solitary granuloma. Four patients had
typical CT features of COVID-19.
Conclusion: We found that the CT imaging showed peripheral
GGO in our patients. They remained clinically stable with no
deterioration of their respiratory symptoms suggesting stability
in lung involvement. We postulate that rapid changes in CT
imaging may not be present in young, asymptomatic,
non-smoking COVID-19 patients. Thus the use of CT thorax
for early diagnosis may be reserved for patients in the older age
groups, and not in younger patients.
10.Antimicrobial Activity of Methyl Gallate isolated from the Leaves of Glochidion superbum Against Hospital Isolates of Methicillin Resistant Staphylococcus aureus.
Mohammed Dahiru AHMED ; Muhammad TAHER ; Alhaji Hamusu MAIMUSA ; Mohamad Fazlin REZALI ; Mohammed Imad Al deen Mustafa MAHMUD
Natural Product Sciences 2017;23(1):5-8
An antimicrobial compound has been isolated from the leaves of Glochidion superbum. The compound was determined as methyl 3, 4, 5-trihydroxybenzoate (methyl gallate), based on ultraviolet (UV), infrared (IR), nuclear magnetic resonance (NMR) and mass spectroscopy (MS) analysis. The isolated compound exhibited potent antimicrobial activity against three clinical isolates of methicillin resistant Staphylococcus aureus (MRSA) by qualitative agar disc diffusion method and quantitative broth dilution method. Agar disc diffusion was done in a dose-dependent manner for each bacterial isolate at disc potencies of 25, 50, 100, and 150 µg/disc. The zones of inhibition were on average equal to 12.27, 14.20, 15.43, and 24.17 mm respectively. The inhibition zones were compared with that of vancomycin disc at 30 µg as a reference standard. The MIC and MBC values were 50 µg/mL and 100 µg/mL respectively. The results of anti MRSA activity were analyzed using one-way ANOVA with Turkey's HSD and Duncan test. In conclusion, methyl gallate which was isolated from G. superbum showed the inhibition activity against methicillin resistant S. aureus.
Agar
;
Diffusion
;
Magnetic Resonance Spectroscopy
;
Mass Spectrometry
;
Methicillin Resistance*
;
Methicillin*
;
Methicillin-Resistant Staphylococcus aureus
;
Methods
;
Staphylococcus aureus*
;
Staphylococcus*
;
Vancomycin


Result Analysis
Print
Save
E-mail