MOHAMMED I D R I S S AHMED (original) (raw)

Papers by MOHAMMED I D R I S S AHMED

Natural Science, 2021

In this work, Laser Induced Breakdown Spectroscopy (LIBS) was used to determine the constituent o... more In this work, Laser Induced Breakdown Spectroscopy (LIBS) was used to determine the constituent of Gum Arabic (Acacia nilotica) collected from five different locations in Sudan. Gum samples were irradiated with 80 mJ pulse energy of Nd-YAG laser (1064 nm) and Atomic spectra Database was used for the spectral analysis of the plasma emitted from these samples. It was found that the samples contain the elements C, O, H, S, N, P, Na, Mg, Ca, Fe, Cr, Mn, Co with different amounts. Some elements like (Ti, Br, Ar, Th, Kr, Sc and Pr) are recorded here for the first time.

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Hematology Research and Reviews

Essential thrombocythemia (ET) is a neoplastic proliferation of mature myeloid cells - in particu... more Essential thrombocythemia (ET) is a neoplastic proliferation of mature myeloid cells - in particular, megakaryocytes - leading to persistently elevated platelet count. Usual clinical presentation is related to an increase in the risk of hemorrhage and/or thrombosis. Management of ET consists of antiplatelet therapies - mainly aspirin and cytoreductive therapies. Coronary involvement in patients with ET is rare. The optimal treatment strategies for ET patients presenting with acute myocardial infarction remains unclear. Acute interventions like intracoronary thrombolytic therapy, angioplasty, and coronary-artery bypass grafting have been reported in such patients. However, several questions remain unanswered about the acute and long-term management of these patients. Herein, we report the case of a 47-year-old female who presented with acute myocardial infarction as the first clinical sign of ET, and also present the long-term follow-up of this patient.

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Bioscience Research, 2020

Telecommunication technology has become a very crucial method of communication nowadays in all co... more Telecommunication technology has become a very crucial method of communication nowadays in all countries. However, there many concerns regarding the safety and biological risk from telecommunications towers. This study aims to analyze the number and distribution of the base transceiver station (BTS) in Khartoum state and assess the possible biological risk. Khartoum State was divided into seven districts are calculated and compared with the Ministry of Communications. This study's results were obtained from the Telecommunication companies (A, B, and C) operating in the Khartoum State (. Khartoum state has 2214 BTs distributed in its seven districts (area =22,142 km2). The largest number of antennas was found in Khartoum, with 515 antennas, at 23 %, and the lowest in the district is Karari districts, with only 206(9%). The number of BTS in company A has 10 locations, 0.1% and None share 817 , 99% ,In Company B =492 location ,share lactation 233,47.35% ,Non Share 259(52.6%) and the Company C has 791 Locations, Share location= 695 (87.8%) , Non share has 200 (25.28%). According to the companies operation, the mean share locations in Khartoum state 45.3%, and Non-share locations are 59%. The study revealed that the number of non-shared antennas in the state of Khartoum is greater than the common antennas, and therefore, the resulting emitted power is less than the Share antennas. The current number of BTs comply with international guidelines. Based on the distribution of BTs, the risk is minimal to the general population.

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The nature and origin of the photon and elementary rest masses are some of the challenging proble... more The nature and origin of the photon and elementary rest masses are some of the challenging problems that physics face. The approaches used to solve these problems are complex and time-consuming. Specifically, the photon rest mass pays attention to theoretical physicists. Many experimental works show that the photon rest mass is non zero. This problem can be solved using generalized potential dependent special relativity, which has been derived using simple arguments, and Maxwell's equations, besides the conventional Einstein energy momentum relation. The results obtained show that the rest mass of photons and elementary particles are strongly dependent on the vacuum energy and a universal constant. This result conforms with the models that predict time decaying vacuum energy associated with production of smaller rest mass particles followed by larger masses. The two potential dependent mass expressions conform with the cosmological models that suggest the photon is generated first by assuming the universe consisting of total constant vacuum with decaying cosmological part and mass generating part. Using Maxwell's equations, beside plank and De Broglie hypothesis together with special relativity energy-momentum relation the photon rest mass is estimated. It was shown that the photon rest mass is extremely small Open Access https://doi.org/10.4236/ns.2020.128045 589 Natural Science compared to the electron mass.

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Scientific Research, 2020

The nature and origin of the photon and elementary rest masses are some of the challenging proble... more The nature and origin of the photon and elementary rest masses are some of the challenging problems that physics face. The approaches used to solve these problems are complex and time-consuming. Specifically, the photon rest mass pays attention to theoretical physicists. Many experimental works show that the photon rest mass is non zero. This problem can be solved using generalized potential dependent special relativity, which has been derived using simple arguments, and Maxwell's equations, besides the conventional Einstein energy momentum relation. The results obtained show that the rest mass of photons and elementary particles are strongly dependent on the vacuum energy and a universal constant. This result conforms with the models that predict time decaying vacuum energy associated with production of smaller rest mass particles followed by larger masses. The two potential dependent mass expressions conform with the cosmological models that suggest the photon is generated first by assuming the universe consisting of total constant vacuum with decaying cosmological part and mass generating part. Using Maxwell's equations, beside plank and De Broglie hypothesis together with special relativity energy-momentum relation the photon rest mass is estimated. It was shown that the photon rest mass is extremely small Open Access https://doi.org/10.4236/ns.2020.128045 589 Natural Science compared to the electron mass.

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Plank quantum and classical string energy relations seem to be uncorrelated. This work correlated... more Plank quantum and classical string energy relations seem to be uncorrelated. This work correlated them. The relativistic energy-momentum relation has been used together with plank and de Brogglie hypothesis to prove that the wave group velocity is equal to the particle velocity in both ordinary and curved space. The plank energy relation is shown also to be related to the classical energy relation of an oscillating string. Starting from plank energy relation for n photons and performing integration, the expression of classical string energy was obtained. This means that one can treat electromagnetic waves as a collection of continuous photons having frequencies ranging from zero to w. Conversely, starting from classical string energy relation by differentiating it with respect to angular frequency, the plank quantum energy for n photons has been found. This means that the quanta results from separation of electromagnetic waves to single are orated waves. Each wave consists of n pho-tons or quanta.

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Scientific Research Publishing, 2020

Plank quantum and classical string energy relations seem to be uncorrelated. This work correlated... more Plank quantum and classical string energy relations seem to be uncorrelated. This work
correlated them. The relativistic energy-momentum relation has been used together with
plank and de Brogglie hypothesis to prove that the wave group velocity is equal to the particle velocity in both ordinary and curved space. The plank energy relation is shown also to
be related to the classical energy relation of an oscillating string. Starting from plank energy
relation for n photons and performing integration, the expression of classical string energy
was obtained. This means that one can treat electromagnetic waves as a collection of continuous photons having frequencies ranging from zero to w. Conversely, starting from classical string energy relation by differentiating it with respect to angular frequency, the plank
quantum energy for n photons has been found. This means that the quanta results from separation of electromagnetic waves to single are orated waves. Each wave consists of n photons or quant

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Sudan.Abstract Using generalized special relativistic energy-momentum relation the linear energy-... more Sudan.Abstract Using generalized special relativistic energy-momentum relation the linear energy-momentum Dirac relation was obtained. This equation was used to find Dirac generalized relativistic quantum equation. This equation was used to find the probability and the number of particles for each atomic energy level. The wave function found using this equation can give an expression for the number of electrons in each energy levels if the atomic radius is quantized and satisfy a certain relation.

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Scientific Research Publishing, 2020

A pressure dependent Schrodinger equation is used to find the conditions that lead to su-percondu... more A pressure dependent Schrodinger equation is used to find the conditions that lead to su-perconductivity. When no pressure is exerted, the superconductor resistance vanishes beyond a critical temperature related to the repulsive force potential of the electron gass, where one assuming the electron total energy to be thermal, where applying mechanical pressure destroys Sc when it exceeds a certain critical value. However when the electron total energy is an assumed to be that of the free electron model and that the pressure is thermal and mechanical , the situation is different. The quantum expression for resistance shows that the increase of mechanical pressure increases the critical temperature. Such phenomenon is observed in high temperature cupper group.

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Using Quasi‐Monoenergetic Photon Sources To Probe Photo‐Fission Resonances. [AIP Conference Proce... more Using Quasi‐Monoenergetic Photon Sources To Probe Photo‐Fission Resonances. [AIP Conference Proceedings 1336, 590 (2011)]. Micah S. Johnson, James M. Hall, Dennis P. McNabb, Michael J. Tuffley, Mohammed W. Ahmed ...

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Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery, Jan 29, 2016

to study correlation of obstructive sleep apnea (OSA)and laryngo-pharyngeal reflux (LPR). A descr... more to study correlation of obstructive sleep apnea (OSA)and laryngo-pharyngeal reflux (LPR). A descriptive study. Suez Canal University Hospital, Ismailia, Egypt. 62 patients with polysomnography confirmed OSA. patients were evaluated with ambulatory 24-hour double channel pH monitoring. Mean reflux symptom index in the study group was 9+5.5 and it was > 13 in all patients with severe OSA. Signs of LPR reflux were present in 34 (55%) patients. Abnormal reflux was detected in the distal esophagus in 41 patients (66%) and in the proximal esophagus in 21 patients (34%). Patients with severe OSA had significantly higher nocturnal LPRreflux episodes compared to patients with mild disease (p<.05). Number of reflux episodes and total duration of reflux during sleep are significantly correlated to degree of OSA (p< .05). No difference was found in relation to age or sex. Daytime reflux was not related to the degree of obstructive sleep apnea (p> .05). LPR is common in patients with...

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Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 2015

Recurrent anterior instability is a common finding after traumatic glenohumeral dislocation in th... more Recurrent anterior instability is a common finding after traumatic glenohumeral dislocation in the young, athletic patient population. A variety of concomitant pathologies may be present in addition to the classic Bankart lesion, including glenoid bone loss; humeral head bone loss; rotator interval pathology; complex/large capsular injuries including humeral avulsions of the glenohumeral ligaments (HAGL lesions), SLAP tears, near circumferential labral tears, and anterior labral periosteal sleeve avulsions (ALPSA lesions); and rotator cuff tears. Normal anatomic variations masquerading as pathology also may be present. Recognition and treatment of these associated pathologies are necessary to improve function and symptoms of pain and to confer anterior shoulder stability. This review will focus on the history, physical examination findings, imaging findings, and recommended treatment options for common sources of copathology in anterior shoulder instability repair.

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The Journal of asthma : official journal of the Association for the Care of Asthma, Jan 19, 2015

Salmeterol/fluticasone combination (SFC) formulated in a breath-actuated inhaler (BAI) overcomes ... more Salmeterol/fluticasone combination (SFC) formulated in a breath-actuated inhaler (BAI) overcomes the co-ordination problem associated with the pressurized-metered dose inhaler (pMDIs). Our aim was to compare the efficacy and the safety of SFC given through the BAI versus the conventional pMDI in moderate-to-severe asthmatics. In this randomized, double-blind, double-dummy, prospective, active-controlled, parallel group, multicenter, 12 weeks study, 150 asthmatics were randomized to receive SFC (25/125 mcg) through either BAI or pMDI. The primary efficacy endpoint was mean change in pre-dose morning PEFR value at 12 weeks and the secondary efficacy endpoints included, mean change in FEV1, pre-bronchodilator FVC, pre-dose morning and evening PEFR, symptom scores at 2, 4, 8, and 12 weeks. Patient preferences for device and safety were also assessed. At 12 weeks, the mean change in pre-dose morning PEFR in BAI and pMDI groups was 50.72 L/min and 48.82 L/min, respectively (p < 0.0001;...

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The Journal of hand surgery, Jan 27, 2015

The fingertip is the most commonly injured part of the hand. When replantation of a fingertip amp... more The fingertip is the most commonly injured part of the hand. When replantation of a fingertip amputation is not possible, flap reconstruction may be necessary for a functional and aesthetically pleasing outcome. This paper reviews commonly utilized reconstruction techniques with a focus on technical tricks and potential complications and how to avoid them, with illustrative cases.

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EXCLI journal, 2013

Systemic lupus erythematosus (SLE) patients have an increased risk of atherosclerosis. Identifica... more Systemic lupus erythematosus (SLE) patients have an increased risk of atherosclerosis. Identification of at-risk patients and the pathogenesis of atherosclerosis in SLE remain elusive. Paraoxonase 1 (PON1) and anti-apolipoprotein A-I antibody (anti-Apo A-I) appear to have a potential role in premature atherosclerosis in SLE. The aim of this work was to study PON1 activity and anti-Apo A-I antibody in SLE female patients and to demonstrate their relations to disease activity as well as disease related damage. Forty SLE female patients and 40 apparently healthy volunteers were included. Anti-Apo A-I antibodies levels and PON1 activity levels were assessed. Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) and systemic Lupus International Collaboration Clinics (SLICC)/American College of Rheumatology (ACR) damage index were preformed in all patients. Compared with controls, SLE patients showed significantly lower PON1 activity and significantly higher titers of anti-Apo A-I....

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EXCLI journal, 2013

Oxidative stress may play a pathogenic role in chronic hepatitis C (CHC). The present study exami... more Oxidative stress may play a pathogenic role in chronic hepatitis C (CHC). The present study examined the oxidative status in plasma of patients with CHC who received pegylated interferon and ribavirin therapy. The following groups were included: (1) sustained virological response (28 patients), (2) null response (26 patients), (3) breakthrough (24 patients), (4) relapse (24 patients), (5) spontaneous cure (23 patients) and (6) twenty five normal subjects as a control group. Markers of oxidative stress including plasma malondialdehyde, nitric oxide, reduced glutathione, total antioxidant capacity and uric acid as well as serum ALT, AST, alkaline phosphatase, total bilirubin, albumin, prothrombin time were studied. The study indicated significant decline in reduced glutathione and total antioxidant capacity and markedly elevated levels of malondialdehyde and nitric oxide in all groups compared with the controls. Null response group had the highest levels of malondialdehyde and nitric ...

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Case reports in pediatrics, 2014

Sickle cell anemia (SCA) is a chronic haemoglobinopathy that can affect many organs in the body i... more Sickle cell anemia (SCA) is a chronic haemoglobinopathy that can affect many organs in the body including gastrointestinal tract. However, colonic involvement is very rare and usually in the form of ischemic colitis. We are reporting an 11-year-old Saudi girl with SCA who presented with persistent diarrhea and was found to have inflammaftory bowel disease.

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Indian Journal of Applied Research, Nov 1, 2013

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Working Papers, 2002

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Natural Science, 2021

In this work, Laser Induced Breakdown Spectroscopy (LIBS) was used to determine the constituent o... more In this work, Laser Induced Breakdown Spectroscopy (LIBS) was used to determine the constituent of Gum Arabic (Acacia nilotica) collected from five different locations in Sudan. Gum samples were irradiated with 80 mJ pulse energy of Nd-YAG laser (1064 nm) and Atomic spectra Database was used for the spectral analysis of the plasma emitted from these samples. It was found that the samples contain the elements C, O, H, S, N, P, Na, Mg, Ca, Fe, Cr, Mn, Co with different amounts. Some elements like (Ti, Br, Ar, Th, Kr, Sc and Pr) are recorded here for the first time.

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Hematology Research and Reviews

Essential thrombocythemia (ET) is a neoplastic proliferation of mature myeloid cells - in particu... more Essential thrombocythemia (ET) is a neoplastic proliferation of mature myeloid cells - in particular, megakaryocytes - leading to persistently elevated platelet count. Usual clinical presentation is related to an increase in the risk of hemorrhage and/or thrombosis. Management of ET consists of antiplatelet therapies - mainly aspirin and cytoreductive therapies. Coronary involvement in patients with ET is rare. The optimal treatment strategies for ET patients presenting with acute myocardial infarction remains unclear. Acute interventions like intracoronary thrombolytic therapy, angioplasty, and coronary-artery bypass grafting have been reported in such patients. However, several questions remain unanswered about the acute and long-term management of these patients. Herein, we report the case of a 47-year-old female who presented with acute myocardial infarction as the first clinical sign of ET, and also present the long-term follow-up of this patient.

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Bioscience Research, 2020

Telecommunication technology has become a very crucial method of communication nowadays in all co... more Telecommunication technology has become a very crucial method of communication nowadays in all countries. However, there many concerns regarding the safety and biological risk from telecommunications towers. This study aims to analyze the number and distribution of the base transceiver station (BTS) in Khartoum state and assess the possible biological risk. Khartoum State was divided into seven districts are calculated and compared with the Ministry of Communications. This study's results were obtained from the Telecommunication companies (A, B, and C) operating in the Khartoum State (. Khartoum state has 2214 BTs distributed in its seven districts (area =22,142 km2). The largest number of antennas was found in Khartoum, with 515 antennas, at 23 %, and the lowest in the district is Karari districts, with only 206(9%). The number of BTS in company A has 10 locations, 0.1% and None share 817 , 99% ,In Company B =492 location ,share lactation 233,47.35% ,Non Share 259(52.6%) and the Company C has 791 Locations, Share location= 695 (87.8%) , Non share has 200 (25.28%). According to the companies operation, the mean share locations in Khartoum state 45.3%, and Non-share locations are 59%. The study revealed that the number of non-shared antennas in the state of Khartoum is greater than the common antennas, and therefore, the resulting emitted power is less than the Share antennas. The current number of BTs comply with international guidelines. Based on the distribution of BTs, the risk is minimal to the general population.

Bookmarks Related papers MentionsView impact

The nature and origin of the photon and elementary rest masses are some of the challenging proble... more The nature and origin of the photon and elementary rest masses are some of the challenging problems that physics face. The approaches used to solve these problems are complex and time-consuming. Specifically, the photon rest mass pays attention to theoretical physicists. Many experimental works show that the photon rest mass is non zero. This problem can be solved using generalized potential dependent special relativity, which has been derived using simple arguments, and Maxwell's equations, besides the conventional Einstein energy momentum relation. The results obtained show that the rest mass of photons and elementary particles are strongly dependent on the vacuum energy and a universal constant. This result conforms with the models that predict time decaying vacuum energy associated with production of smaller rest mass particles followed by larger masses. The two potential dependent mass expressions conform with the cosmological models that suggest the photon is generated first by assuming the universe consisting of total constant vacuum with decaying cosmological part and mass generating part. Using Maxwell's equations, beside plank and De Broglie hypothesis together with special relativity energy-momentum relation the photon rest mass is estimated. It was shown that the photon rest mass is extremely small Open Access https://doi.org/10.4236/ns.2020.128045 589 Natural Science compared to the electron mass.

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Scientific Research, 2020

The nature and origin of the photon and elementary rest masses are some of the challenging proble... more The nature and origin of the photon and elementary rest masses are some of the challenging problems that physics face. The approaches used to solve these problems are complex and time-consuming. Specifically, the photon rest mass pays attention to theoretical physicists. Many experimental works show that the photon rest mass is non zero. This problem can be solved using generalized potential dependent special relativity, which has been derived using simple arguments, and Maxwell's equations, besides the conventional Einstein energy momentum relation. The results obtained show that the rest mass of photons and elementary particles are strongly dependent on the vacuum energy and a universal constant. This result conforms with the models that predict time decaying vacuum energy associated with production of smaller rest mass particles followed by larger masses. The two potential dependent mass expressions conform with the cosmological models that suggest the photon is generated first by assuming the universe consisting of total constant vacuum with decaying cosmological part and mass generating part. Using Maxwell's equations, beside plank and De Broglie hypothesis together with special relativity energy-momentum relation the photon rest mass is estimated. It was shown that the photon rest mass is extremely small Open Access https://doi.org/10.4236/ns.2020.128045 589 Natural Science compared to the electron mass.

Bookmarks Related papers MentionsView impact

Plank quantum and classical string energy relations seem to be uncorrelated. This work correlated... more Plank quantum and classical string energy relations seem to be uncorrelated. This work correlated them. The relativistic energy-momentum relation has been used together with plank and de Brogglie hypothesis to prove that the wave group velocity is equal to the particle velocity in both ordinary and curved space. The plank energy relation is shown also to be related to the classical energy relation of an oscillating string. Starting from plank energy relation for n photons and performing integration, the expression of classical string energy was obtained. This means that one can treat electromagnetic waves as a collection of continuous photons having frequencies ranging from zero to w. Conversely, starting from classical string energy relation by differentiating it with respect to angular frequency, the plank quantum energy for n photons has been found. This means that the quanta results from separation of electromagnetic waves to single are orated waves. Each wave consists of n pho-tons or quanta.

Bookmarks Related papers MentionsView impact

Scientific Research Publishing, 2020

Plank quantum and classical string energy relations seem to be uncorrelated. This work correlated... more Plank quantum and classical string energy relations seem to be uncorrelated. This work
correlated them. The relativistic energy-momentum relation has been used together with
plank and de Brogglie hypothesis to prove that the wave group velocity is equal to the particle velocity in both ordinary and curved space. The plank energy relation is shown also to
be related to the classical energy relation of an oscillating string. Starting from plank energy
relation for n photons and performing integration, the expression of classical string energy
was obtained. This means that one can treat electromagnetic waves as a collection of continuous photons having frequencies ranging from zero to w. Conversely, starting from classical string energy relation by differentiating it with respect to angular frequency, the plank
quantum energy for n photons has been found. This means that the quanta results from separation of electromagnetic waves to single are orated waves. Each wave consists of n photons or quant

Bookmarks Related papers MentionsView impact

Bookmarks Related papers MentionsView impact

Sudan.Abstract Using generalized special relativistic energy-momentum relation the linear energy-... more Sudan.Abstract Using generalized special relativistic energy-momentum relation the linear energy-momentum Dirac relation was obtained. This equation was used to find Dirac generalized relativistic quantum equation. This equation was used to find the probability and the number of particles for each atomic energy level. The wave function found using this equation can give an expression for the number of electrons in each energy levels if the atomic radius is quantized and satisfy a certain relation.

Bookmarks Related papers MentionsView impact

Scientific Research Publishing, 2020

A pressure dependent Schrodinger equation is used to find the conditions that lead to su-percondu... more A pressure dependent Schrodinger equation is used to find the conditions that lead to su-perconductivity. When no pressure is exerted, the superconductor resistance vanishes beyond a critical temperature related to the repulsive force potential of the electron gass, where one assuming the electron total energy to be thermal, where applying mechanical pressure destroys Sc when it exceeds a certain critical value. However when the electron total energy is an assumed to be that of the free electron model and that the pressure is thermal and mechanical , the situation is different. The quantum expression for resistance shows that the increase of mechanical pressure increases the critical temperature. Such phenomenon is observed in high temperature cupper group.

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Using Quasi‐Monoenergetic Photon Sources To Probe Photo‐Fission Resonances. [AIP Conference Proce... more Using Quasi‐Monoenergetic Photon Sources To Probe Photo‐Fission Resonances. [AIP Conference Proceedings 1336, 590 (2011)]. Micah S. Johnson, James M. Hall, Dennis P. McNabb, Michael J. Tuffley, Mohammed W. Ahmed ...

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Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery, Jan 29, 2016

to study correlation of obstructive sleep apnea (OSA)and laryngo-pharyngeal reflux (LPR). A descr... more to study correlation of obstructive sleep apnea (OSA)and laryngo-pharyngeal reflux (LPR). A descriptive study. Suez Canal University Hospital, Ismailia, Egypt. 62 patients with polysomnography confirmed OSA. patients were evaluated with ambulatory 24-hour double channel pH monitoring. Mean reflux symptom index in the study group was 9+5.5 and it was > 13 in all patients with severe OSA. Signs of LPR reflux were present in 34 (55%) patients. Abnormal reflux was detected in the distal esophagus in 41 patients (66%) and in the proximal esophagus in 21 patients (34%). Patients with severe OSA had significantly higher nocturnal LPRreflux episodes compared to patients with mild disease (p<.05). Number of reflux episodes and total duration of reflux during sleep are significantly correlated to degree of OSA (p< .05). No difference was found in relation to age or sex. Daytime reflux was not related to the degree of obstructive sleep apnea (p> .05). LPR is common in patients with...

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Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 2015

Recurrent anterior instability is a common finding after traumatic glenohumeral dislocation in th... more Recurrent anterior instability is a common finding after traumatic glenohumeral dislocation in the young, athletic patient population. A variety of concomitant pathologies may be present in addition to the classic Bankart lesion, including glenoid bone loss; humeral head bone loss; rotator interval pathology; complex/large capsular injuries including humeral avulsions of the glenohumeral ligaments (HAGL lesions), SLAP tears, near circumferential labral tears, and anterior labral periosteal sleeve avulsions (ALPSA lesions); and rotator cuff tears. Normal anatomic variations masquerading as pathology also may be present. Recognition and treatment of these associated pathologies are necessary to improve function and symptoms of pain and to confer anterior shoulder stability. This review will focus on the history, physical examination findings, imaging findings, and recommended treatment options for common sources of copathology in anterior shoulder instability repair.

Bookmarks Related papers MentionsView impact

The Journal of asthma : official journal of the Association for the Care of Asthma, Jan 19, 2015

Salmeterol/fluticasone combination (SFC) formulated in a breath-actuated inhaler (BAI) overcomes ... more Salmeterol/fluticasone combination (SFC) formulated in a breath-actuated inhaler (BAI) overcomes the co-ordination problem associated with the pressurized-metered dose inhaler (pMDIs). Our aim was to compare the efficacy and the safety of SFC given through the BAI versus the conventional pMDI in moderate-to-severe asthmatics. In this randomized, double-blind, double-dummy, prospective, active-controlled, parallel group, multicenter, 12 weeks study, 150 asthmatics were randomized to receive SFC (25/125 mcg) through either BAI or pMDI. The primary efficacy endpoint was mean change in pre-dose morning PEFR value at 12 weeks and the secondary efficacy endpoints included, mean change in FEV1, pre-bronchodilator FVC, pre-dose morning and evening PEFR, symptom scores at 2, 4, 8, and 12 weeks. Patient preferences for device and safety were also assessed. At 12 weeks, the mean change in pre-dose morning PEFR in BAI and pMDI groups was 50.72 L/min and 48.82 L/min, respectively (p < 0.0001;...

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The Journal of hand surgery, Jan 27, 2015

The fingertip is the most commonly injured part of the hand. When replantation of a fingertip amp... more The fingertip is the most commonly injured part of the hand. When replantation of a fingertip amputation is not possible, flap reconstruction may be necessary for a functional and aesthetically pleasing outcome. This paper reviews commonly utilized reconstruction techniques with a focus on technical tricks and potential complications and how to avoid them, with illustrative cases.

Bookmarks Related papers MentionsView impact

EXCLI journal, 2013

Systemic lupus erythematosus (SLE) patients have an increased risk of atherosclerosis. Identifica... more Systemic lupus erythematosus (SLE) patients have an increased risk of atherosclerosis. Identification of at-risk patients and the pathogenesis of atherosclerosis in SLE remain elusive. Paraoxonase 1 (PON1) and anti-apolipoprotein A-I antibody (anti-Apo A-I) appear to have a potential role in premature atherosclerosis in SLE. The aim of this work was to study PON1 activity and anti-Apo A-I antibody in SLE female patients and to demonstrate their relations to disease activity as well as disease related damage. Forty SLE female patients and 40 apparently healthy volunteers were included. Anti-Apo A-I antibodies levels and PON1 activity levels were assessed. Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) and systemic Lupus International Collaboration Clinics (SLICC)/American College of Rheumatology (ACR) damage index were preformed in all patients. Compared with controls, SLE patients showed significantly lower PON1 activity and significantly higher titers of anti-Apo A-I....

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EXCLI journal, 2013

Oxidative stress may play a pathogenic role in chronic hepatitis C (CHC). The present study exami... more Oxidative stress may play a pathogenic role in chronic hepatitis C (CHC). The present study examined the oxidative status in plasma of patients with CHC who received pegylated interferon and ribavirin therapy. The following groups were included: (1) sustained virological response (28 patients), (2) null response (26 patients), (3) breakthrough (24 patients), (4) relapse (24 patients), (5) spontaneous cure (23 patients) and (6) twenty five normal subjects as a control group. Markers of oxidative stress including plasma malondialdehyde, nitric oxide, reduced glutathione, total antioxidant capacity and uric acid as well as serum ALT, AST, alkaline phosphatase, total bilirubin, albumin, prothrombin time were studied. The study indicated significant decline in reduced glutathione and total antioxidant capacity and markedly elevated levels of malondialdehyde and nitric oxide in all groups compared with the controls. Null response group had the highest levels of malondialdehyde and nitric ...

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Case reports in pediatrics, 2014

Sickle cell anemia (SCA) is a chronic haemoglobinopathy that can affect many organs in the body i... more Sickle cell anemia (SCA) is a chronic haemoglobinopathy that can affect many organs in the body including gastrointestinal tract. However, colonic involvement is very rare and usually in the form of ischemic colitis. We are reporting an 11-year-old Saudi girl with SCA who presented with persistent diarrhea and was found to have inflammaftory bowel disease.

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Indian Journal of Applied Research, Nov 1, 2013

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Working Papers, 2002

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