1.Craniocerebral injuries in war against terrorism --- a contemporary series from Pakistan.
Muhammad-Umair BASHIR ; Muhammad-Zubair TAHIR ; Ehsan BARI ; Sehreen MUMTAZ
Chinese Journal of Traumatology 2013;16(3):149-157
OBJECTIVETerrorism-related bomb attacks on civilian population have increased dramatically over the last decade. Craniocerebral injuries secondary to improvised explosive devices have not been widely reported in the context of unarmored civilians. This series intends to report the spectrum of these injuries secondary to suicidal and implanted bombs as encountered at the Aga Khan University Hospital, Pakistan (AKUH). Further, a few pertinent management guidelines have also been discussed.
METHODSThe hospital database and clinical coding during a 5-year period were examined for head injuries secondary to terrorism-associated blasts. In addition to patient demographics, data analysis for our series included initial Glasgow Coma Scale, presenting neurological complaints, associated non-neurological injuries, management (conservative or operative) to associated complications, and discharge neurological status.
RESULTSA total of 16 patients were included in this series. Among them 9 were victims of suicidal blasts while 7 were exposed to implanted devices. The patients presented with diverse patterns of injury secondary to a variety of shrapnel. A follow-up record was available for 12 of the 16 patients (mean follow-up: 7.8 months), with most patients having no active complaints.
CONCLUSIONThe results of this series show that civilian victims of suicidal and improvised bombings present with a wide range of neurological symptoms and injury patterns, which often differ from the neurological injuries incurred by military personnel in similar situations, and thereby often require individualized care.
Adolescent ; Adult ; Blast Injuries ; diagnostic imaging ; epidemiology ; therapy ; Bombs ; Child ; Child, Preschool ; Craniocerebral Trauma ; diagnostic imaging ; epidemiology ; Debridement ; Decompressive Craniectomy ; Female ; Glasgow Coma Scale ; Humans ; Male ; Middle Aged ; Pakistan ; epidemiology ; Skull Fractures ; epidemiology ; Suicide ; Terrorism ; statistics & numerical data ; Tomography, X-Ray Computed ; Urban Population ; statistics & numerical data ; Wounds, Penetrating ; epidemiology ; Young Adult
2.Effect of seedling age and water depth on morphological and physiological aspects of transplanted rice under high temperature.
Abdul Aziz KHAKWANI ; Masaaki SHIRAISHI ; Muhammad ZUBAIR ; Mohammad Safdar BALOCH ; Khalid NAVEED ; Inayatullah AWAN
Journal of Zhejiang University. Science. B 2005;6(5):389-395
To study the effect of high temperature, rice seedlings 20, 30, 40 and 50 d were kept at 5, 10, 15 and 20 cm water depth in a water pool. Meteorological findings indicated that water temperature varied up to 10 cm but became stable below this depth. Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight). However, deep water tended to increase plant length. These parameters, however, excel in shallow water. Older seedlings, with the exception of root dry weight, could not perform well compared to young seedlings in all physiological and morphological aspects. The study revealed that seedlings, particularly young ones, stand well in shallow water and can cope with high temperature.
Desiccation
;
Organ Size
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Oryza
;
anatomy & histology
;
cytology
;
growth & development
;
physiology
;
Plant Components, Aerial
;
anatomy & histology
;
growth & development
;
Plant Leaves
;
anatomy & histology
;
growth & development
;
Plant Roots
;
anatomy & histology
;
growth & development
;
Seedlings
;
cytology
;
growth & development
;
Temperature
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Time Factors
;
Water
;
analysis
3.Is antibiotic prophylaxis necessary after endoscopic ultrasound–guided fine-needle aspiration of pancreatic cysts?
Seifeldin HAKIM ; Mihajlo GJEORGJIEVSKI ; Zubair KHAN ; Michael E. CANNON ; Kevin YU ; Prithvi PATIL ; Roy Tomas DAVEE ; Sushovan GUHA ; Ricardo BADILLO ; Laith JAMIL ; Nirav THOSANI ; Srinivas RAMIREDDY
Clinical Endoscopy 2022;55(6):801-809
Background/Aims:
Current society guidelines recommend antibiotic prophylaxis for 3 to 5 days after endoscopic ultrasound–guided fine-needle aspiration (EUS-FNA) of pancreatic cystic lesions (PCLs). The overall quality of the evidence supporting this recommendation is low. In this study, we aimed to assess cyst infection and adverse event rates after EUS-FNA of PCLs among patients treated with or without postprocedural prophylactic antibiotics.
Methods:
We retrospectively reviewed all patients who underwent EUS-FNA of PCLs between 2015 and 2019 at two large-volume academic medical centers with different practice patterns of postprocedural antibiotic prophylaxis. Data on patient demographics, cyst characteristics, fine-needle aspiration technique, periprocedural and postprocedural antibiotic prophylaxis, and adverse events were retrospectively extracted.
Results:
A total of 470 EUS-FNA procedures were performed by experienced endosonographers for the evaluation of PCLs in 448 patients, 58.7% of whom were women. The mean age was 66.3±12.8 years. The mean cyst size was 25.7±16.9 mm. Postprocedural antibiotics were administered in 274 cases (POSTAB+ group, 58.3%) but not in 196 cases (POSTAB– group, 41.7%). None of the patients in either group developed systemic or localized infection within the 30-day follow-up period. Procedure-related adverse events included mild abdominal pain (8 patients), intra-abdominal hematoma (1 patient), mild pancreatitis (1 patient), and perforation (1 patient). One additional case of pancreatitis was recorded; however, the patient also underwent endoscopic retrograde cholangiopancreatography.
Conclusions
The incidence of infection after EUS-FNA of PCLs is negligible. Routine use of postprocedural antibiotics does not add a significant benefit.
4. Wolbachia pipientis: A potential candidate for combating and eradicating dengue epidemics in Pakistan
Uruj TAHIR ; Umair Hassan KHAN ; Umair Hassan BAHAR-E-MUSTAFA ; Muhammad Saad ZUBAIR
Asian Pacific Journal of Tropical Medicine 2015;8(12):989-998
Dengue virus syndrome is an emerging global health challenge which is endemic in tropical countries like Pakistan. In recent years dengue incidences have increased considerably in different areas of Pakistan with more sever impacts on urban and peri-urban populations. This review is an effort to highlight the changing epidemiology of dengue fever, role of Government of Pakistan in disease management and control using preventive and community based approaches in the region. Moreover, there is an emphasis on application of Wolbachia as novel, inexpensive and environmentally benign candidate for control and eradication of dengue transmitting vectors.
5. Potential bioactive phytochemicals, antioxidant properties and anticancer pathways of Nymphaea nouchali
Md. Nazim UDDIN ; Md. Zahurul HAQUE ; Kanika MITRA ; Tanzir Ahmed KHAN ; Md. Nazim UDDIN ; Md. Abdus SAMAD ; Md. Abu ZUBAIR ; Md Amir HOSSAIN ; Ashikujaman SYED ; Aklima AFROZE
Asian Pacific Journal of Tropical Biomedicine 2020;10(12):555-562
Objective: To investigate bioactive phytochemicals and antioxidant activities of Nymphaea nouchali and to explore its anticancer pathways by a network pharmacology approach. Methods: Using a spectrophotometer and high-performance liquid chromatography-diode array detector (HPLC-DAD), we quantified bioactive phytochemicals in methanolic extract of Nymphaea nouchali tuber. The extracts were investigated for in vitro antioxidant properties. Targets of these bioactive phytochemicals were predicted and anticancer-associated pathways were analyzed by a network pharmacology approach. Moreover, we identified the predicted genes associated with cancer pathways and the hub genes in the protein-protein interaction network of predicted genes. Results: Quantitative results indicated the total phenolics, total flavonoids, and total proanthocyanidins in the methanolic extract of Nymphaea nouchali tuber. HPLC-DAD analysis showed rutin (39.44 mg), catechin (39.20 mg), myricetin (30.77 mg), ellagic acid (11.05 mg), gallic acid (3.67 mg), vanillic acid (0.75 mg), rosmarinic acid (4.81 mg), p-coumaric acid (3.35 mg), and quercetin (0.90 mg) in 1 g of dry extract. The extract showed the radical scavenging activities of 2, 2-diphenyl-1-picrylhydrazyl, 2,2'-azino- bis (3-ethylbenzothiazoline-6-sulfonic acid) and N,N-dimethyl-p phenylenediamine. By using network pharmacology, we predicted 130 target genes associated with cancer pathways. The top hub genes (IL6, AKT1, EGFR, JUN, PTGS2, MAPK3, CASP3, and CXCL8) were also identified, which were associated with cancer pathways and interacted with bioactive phytochemicals of the methanolic extract of Nymphaea nouchali tuber. Conclusions: Our study provides insights into the mechanism of anticancer activities of the methanolic extract of Nymphaea nouchali tuber.
6.A novel homozygous frameshift variant in DNAH8 causes multiple morphological abnormalities of the sperm flagella in a consanguineous Pakistani family.
Sobia DIL ; Asad KHAN ; Ahsanullah UNAR ; Meng-Lei YANG ; Imtiaz ALI ; Aurang ZEB ; Huan ZHANG ; Jian-Teng ZHOU ; Muhammad ZUBAIR ; Khalid KHAN ; Shun BAI ; Qing-Hua SHI
Asian Journal of Andrology 2023;25(3):350-355
Multiple morphological abnormalities of the sperm flagella (MMAF) is a severe form of asthenozoospermia categorized by immotile spermatozoa with abnormal flagella in ejaculate. Whole-exome sequencing (WES) is used to detect pathogenic variants in patients with MMAF. In this study, a novel homozygous frameshift variant (c.6158_6159insT) in dynein axonemal heavy chain 8 (DNAH8) from two infertile brothers with MMAF in a consanguineous Pakistani family was identified by WES. Reverse transcription-polymerase chain reaction (RT-PCR) confirmed DNAH8 mRNA decay in these patients with the DNAH8 mutation. Hematoxylin-eosin staining and transmission electron microscopy revealed highly divergent morphology and ultrastructure of sperm flagella in these patients. Furthermore, an immunofluorescence assay showed the absence of DNAH8 and a reduction in its associated protein DNAH17 in the patients' spermatozoa. Collectively, our study expands the phenotypic spectrum of patients with DNAH8-related MMAF worldwide.
Humans
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Male
;
Consanguinity
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Pakistan
;
Infertility, Male/metabolism*
;
Semen/metabolism*
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Sperm Tail/metabolism*
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Spermatozoa/metabolism*
;
Flagella/pathology*
;
Mutation
7.A recurrent homozygous missense mutation in CCDC103 causes asthenoteratozoospermia due to disorganized dynein arms.
Muhammad ZUBAIR ; Ranjha KHAN ; Ao MA ; Uzma HAMEED ; Mazhar KHAN ; Tanveer ABBAS ; Riaz AHMAD ; Jian-Teng ZHOU ; Wasim SHAH ; Ansar HUSSAIN ; Nisar AHMED ; Ihsan KHAN ; Khalid KHAN ; Yuan-Wei ZHANG ; Huan ZHANG ; Li-Min WU ; Qing-Hua SHI
Asian Journal of Andrology 2022;24(3):255-259
Asthenoteratozoospermia is one of the most severe types of qualitative sperm defects. Most cases are due to mutations in genes encoding the components of sperm flagella, which have an ultrastructure similar to that of motile cilia. Coiled-coil domain containing 103 (CCDC103) is an outer dynein arm assembly factor, and pathogenic variants of CCDC103 cause primary ciliary dyskinesia (PCD). However, whether CCDC103 pathogenic variants cause severe asthenoteratozoospermia has yet to be determined. Whole-exome sequencing (WES) was performed for two individuals with nonsyndromic asthenoteratozoospermia in a consanguineous family. A homozygous CCDC103 variant segregating recessively with an infertility phenotype was identified (ENST00000035776.2, c.461A>C, p.His154Pro). CCDC103 p.His154Pro was previously reported as a high prevalence mutation causing PCD, though the reproductive phenotype of these PCD individuals is unknown. Transmission electron microscopy (TEM) of affected individuals' spermatozoa showed that the mid-piece was severely damaged with disorganized dynein arms, similar to the abnormal ultrastructure of respiratory ciliary of PCD individuals with the same mutation. Thus, our findings expand the phenotype spectrum of CCDC103 p.His154Pro as a novel pathogenic gene for nonsyndromic asthenospermia.
Asthenozoospermia/pathology*
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Dyneins/genetics*
;
Homozygote
;
Humans
;
Male
;
Microtubule-Associated Proteins
;
Mutation
;
Mutation, Missense
;
Sperm Tail/metabolism*
8.Novel biallelic loss-of-function mutations in
Ihsan KHAN ; Basit SHAH ; Sobia DIL ; Nadeem ULLAH ; Jian-Teng ZHOU ; Da-Ren ZHAO ; Yuan-Wei ZHANG ; Xiao-Hua JIANG ; Ranjha KHAN ; Asad KHAN ; Haider ALI ; Muhammad ZUBAIR ; Wasim SHAH ; Huan ZHANG ; Qing-Hua SHI
Asian Journal of Andrology 2021;23(6):627-632
Multiple morphological abnormalities of the sperm flagella (MMAF) is a specific type of asthenoteratozoospermia, presenting with multiple morphological anomalies in spermatozoa, such as absent, bent, coiled, short, or irregular caliber flagella. Previous genetic studies revealed pathogenic mutations in genes encoding cilia and flagella-associated proteins (CFAPs; e.g., CFAP43, CFAP44, CFAP65, CFAP69, CFAP70, and CFAP251) responsible for the MMAF phenotype in infertile men from different ethnic groups. However, none of them have been identified in infertile Pakistani males with MMAF. In the current study, two Pakistani families with MMAF patients were recruited. Whole-exome sequencing (WES) of patients and their parents was performed. WES analysis reflected novel biallelic loss-of-function mutations in CFAP43 in both families (Family 1: ENST00000357060.3, p.Arg300Lysfs*22 and p.Thr526Serfs*43 in a compound heterozygous state; Family 2: ENST00000357060.3, p.Thr526Serfs*43 in a homozygous state). Sanger sequencing further confirmed that these mutations were segregated recessively in the families with the MMAF phenotype. Semiquantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) was carried out to detect the effect of the mutation on mRNA of the affected gene. Previous research demonstrated that biallelic loss-of-function mutations in CFAP43 accounted for the majority of all CFAP43-mutant MMAF patients. To the best of our knowledge, this is the first study to report CFAP43 biallelic loss-of-function mutations in a Pakistani population with the MMAF phenotype. This study will help researchers and clinicians to understand the genetic etiology of MMAF better.
Adolescent
;
Adult
;
Humans
;
Infertility, Male/epidemiology*
;
Loss of Function Mutation/genetics*
;
Male
;
Microtubule Proteins/genetics*
;
Middle Aged
;
Pakistan/epidemiology*
;
Sperm Tail/physiology*