Wyniki wyszukiwania

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Unusual presence of Wormian (sutural) bones in human skulls

100%

Khan A. A., Asari M. A., Hassan A.

Folia Morphologica

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2011

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tom 70

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nr 4

Wormian bones are a subset of the small intrasutural bones that lie between the cranial sutures formed by the bones of the skull vault. They are formed due to additional ossification centres in or near sutures. They are usually considered as normal variants and seem to be determined genetically in certain populations. They have been linked with rapid cranial expansion as they appear in great number in hydrocephalic skulls. They are commonly found in the lambdoid suture and fontanelles but are occasionally seen in other sutures especially the coronal, squamosal, and sagittal sutures. We examined 25 dried human skulls with the aim to find out the occurrence and variations of Wormian bones, and surprisingly we found Wormian bones in the coronal, squamosal, and sagittal sutures in 6 skulls. These are uncommon sites of occurrence of sutural bones as reported in the literature. These findings prompted us to report these cases as their presence can lead to confusion in diagnosis in cases of skull fractures. (Folia Morphol 2011; 70, 4: 291–294)

2

The sciatic nerve in human cadavers - high division or low formation?

100%

Khan A. A., Asari M. A., Pasha M. A.

Folia Morphologica

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2016

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tom 75

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nr 3

Variations of the sciatic nerve have been extensively studied in the past including its relationship with the piriformis muscle and associated clinical conditions like piriformis syndrome and sciatica. In the present study we noticed some interesting variations of the sciatic nerve, which were slightly different from the cases described earlier. In the previous studies most of the authors described the higher division of sciatic nerve and none of them discussed its formation. In this study we tried to look its formation from the sacral plexus and its divisions in the thigh. We noticed that in one cadaver the two components of the sciatic nerve originated directly from the sacral plexus and coursed down without merging in the thigh. Should this be called a higher division or non formation of the sciatic nerve? On the other hand in two other cadavers, the two divisions after emerging separately from the sacral plexus, united in the gluteal region and in the thigh respectively. Should we call this as higher division or low formation of the sciatic nerve? In two other cadavers the sciatic nerve emerged from the greater sciatic foramen below the piriformis and divided in the gluteal region itself. Ideally this should be called as higher division of sciatic nerve. (Folia Morphol 2016; 75, 3: 306–310)

3

An interconnected duplicated femoral vein and its clinical significance

100%

Khan A. A., Hassan A., Asari M. A., Aiman N.

Folia Morphologica

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2013

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tom 72

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nr 1

Anatomical variations in the femoral vein are of great clinical importance especially in cases of deep vein thrombosis (DVT). Knowledge of the variable anatomy of the femoral vein is important to minimise false-negative findings on ultrasound examination in patients with DVT and help to explain the ‘silent’ DVT. Furthermore, the presence of a duplicated femoral vein itself is associated with higher incidence of DVT. These venous anomalies are usually due to the truncular venous malformation. In the present study, while dissecting the right lower limb, we found a case of variation of the femoral vein. In this case, besides a duplicated femoral vein, we also noticed a 3rd interconnecting channel near the apex of the femoral triangle joining the two veins. This variation has not been reported previously by other authors. Considering its uniqueness and clinical importance, we decided to report this case. (Folia Morphol 2013; 72, 1: 82–85)

4

Survivin, a molecular target for therapeutic interventions in squamous cell carcinoma

88%

Khan Z., Khan A. A., Yadav H., Prasad G., Bisen P. S.

Cellular and Molecular Biology Letters

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2017

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tom 22

5

Design and performance evaluation of an indigenously developed small-scale fish-iil extraction unit; a solution for improving fish farm environments

76%

Qureshi M. W. G., Mahmood-Khan Z., Ahmad F., Shoaib M., Faarid H. U., Khan A. A., Khan Sial J.

Polish Journal of Environmental Studies

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2018

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tom 27

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nr 6

Aquaculture practices are considered a profitable business and are gaining popularity in Pakistan. Small farmers produce a sizeable amount of fish. The fish waste removed at the farm level and/or fishermen’s end is utilized with low economic return. Fish waste produced at the farm level generally is causing environmental pollution as well. A very small amount of fish waste is used to extract the oil using crude heating technology, which is unacceptable, uneconomical, and unhygienic. Extracted oil from wastes of aquatic resources is used as raw material for production of biodiesel around the world. In view of this scenario, a study was conducted to design and develop an indigenous small-scale fishoil extraction unit. A batch-type oil extraction unit is designed in this study, which further evaluated the performance of the developed unit. The extraction unit consists of a crusher, cooker, and centrifuge system. The crusher and centrifuge system were equipped with 2 hp and 1 hp electric motors, respectively. The motor has a revolution capacity of about 1,450 rpm. A double jacket fully water-filled system is proposed with an agitator installed in the cooker. A 1 hp electric motor was provided to operate an agitator at 40 rmp. The centrifuge unit has a double screening mechanism. The extraction unit is tested at a small fish farm near Muzaffargarh, Punjab, Pakistan. The fish oil is successfully separated from fish wastes with the help of a newly designed small-scale oil extraction unit. The tests showed that 90 minutes is required to process one batch of fish waste. The extraction unit has the capacity to process 15-20 kg of fish waste in a single batch. Research for producing bio-fuels from extracted fish oil is at its initial stages and there is a substantial need for further research to study the other economic issues related to bio-fuels and evaluate the oil extraction unit.

6

Dose-dependent production of linoleic acid analogues in food derived Lactobacillus plantarum K25 and in silico characterization of relevant reactions

64%

Aziz T., Sarwar A., Fahim M., Din J. U., Ai-Dalali S., Din Z. U., Khan A. A., Jian Z., Yang Z.

Acta Biochimica Polonica

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2020

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tom 67

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nr 1

Ograniczanie wyników

Unusual presence of Wormian (sutural) bones in human skulls

The sciatic nerve in human cadavers - high division or low formation?

An interconnected duplicated femoral vein and its clinical significance

Survivin, a molecular target for therapeutic interventions in squamous cell carcinoma

Design and performance evaluation of an indigenously developed small-scale fish-iil extraction unit; a solution for improving fish farm environments

Dose-dependent production of linoleic acid analogues in food derived Lactobacillus plantarum K25 and in silico characterization of relevant reactions