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Mohammad W Kadi, Nadeem Ali, Hussain Mohammed Salem Ali Albar
A number of studies have reported the occurrence of phthalates and polycyclic aromatic hydrocarbons (PAHs) in indoor settled dust from different occupational and residential settings around the world but limited studies are available from public and religious places. In recent decades Kingdom of Saudi Arabia (KSA) has experienced tremendous industrial growth especially in the petroleum industries, and as result environmental issues related with such industries have also increased but scientific data is still scarce to understand the impact on public health...
January 29, 2018: Science of the Total Environment
Waseem M Hajjar, Sami A Al-Nassar, Ghaida S Al-Sugair, Alaa Al-Oqail, Shahd Al-Mansour, Rand Al-Haweel, Adnan W Hajjar
Background: Interstitial lung diseases are diseases that need histology diagnosis or obtaining a lung biopsy to establish the diagnosis. Surgical biopsies are performed usually using the thoracoscopy technique under general anesthesia (GA) although this procedure is still associated with morbidity rate. The aim of this study is to determine the effectiveness and safety of regional anesthesia (RA) compared with GA in thoracoscopic lung biopsy procedures done on patients with idiopathic pulmonary fibrosis (IPF)...
January 2018: Saudi Journal of Anaesthesia
Muhammad Sajjad Ahmad, Muhammad Aamer Mehmood, Chen-Guang Liu, Abdul Tawab, Feng-Wu Bai, Chularat Sakdaronnarong, Jianren Xu, Sawsan Abdulaziz Rahimuddin, Munazza Gull
This study evaluated the bioenergy potential of Wolffia arrhiza via pyrolysis. The biomass was collected from the pond receiving city wastewater. Oven dried powdered biomass was exposed to thermal degradation at three heating rates (10, 30 and 50° C min-1) using Thermogravimetry-Differential Scanning Calorimetry analyzer in an inert environment. Data obtained were subjected to the isoconversional models of Kissenger-Akahira-Sunose (KSA) and Flynn-Wall-Ozawa (FWO) to elucidate the reaction chemistry. Kinetic parameters including, Ea (136-172 kJmol-1) and Gibb's free energy (171 kJmol-1) showed the remarkable bioenergy potential of the biomass...
January 13, 2018: Bioresource Technology
Mostafa Sharaf, Hathal M Al Dhafer, Abdulrahman S Aldawood, Francisco Hita Garcia
We revise the taxonomy of the myrmicine ants of the Monomorium monomorium species-group for the Arabian Peninsula. Six species are recognized: Monomorium aeyade Collingwood & Agosti, 1996, M. clavicorne André, 1881, M. exiguum Forel, 1894, M. holothir Bolton, 1987, M. mohammedi sp. n., and M. sarawatense Sharaf & Aldawood, 2013. On the basis of the worker caste, we describe Monomorium mohammedi sp. n. from the southwestern region of the Kingdom of Saudi Arabia (KSA). We designate a neotype for Monomorium aeyade Collingwood & Agosti and redescribe and illustrate the worker caste...
2018: PeerJ
Reham Muqbil Alanazi, Ashjan Aqeel Alanazi, Ibtihaj Qaseem Alenezi, Anwar Matar Alsulobi, Abdulrhman Fahad Almutairy, Wafaa Mohamed Bakr Ali, Mohammed Abdullah Alanazi, Mohammed Abdullah Alkhidhr, Nagah Mohamed Abo Elfetoh, Abdalla Mohamed Bakr Ali
Background: Deep venous thrombosis (DVT) is a condition that occurs frequently among surgical, as well as acutely ill hospitalized medical patients, and is responsible for significant morbidity and mortality in hospitalized patients. Risk factors include older age, surgery and immobilization (as with bed rest, orthopedic casts, and sitting on long flights. Objective: This study was conducted to identify the frequency and factors associated with occurrence of DVT among elderly patients referred to King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia...
November 2017: Electronic Physician
Seong-Yeong Heo, Seok-Chun Ko, Seung Yun Nam, Junghwan Oh, Young-Mog Kim, Jae-Il Kim, Namwon Kim, Myunggi Yi, Won-Kyo Jung
Fish bone, a by-product of fishery processing, is composed of protein, calcium, and other minerals. The objective of this study was to investigate the effects of a bioactive peptide isolated from the bone of the marine fish, Johnius belengerii, on the osteoblastic differentiation of MC3T3-E1 pre-osteoblasts. Post consecutive purification by liquid chromatography, a potent osteogenic peptide, composed of 3 amino acids, Lys-Ser-Ala (KSA, MW: 304.17 Da), was identified. The purified peptide promoted cell proliferation, alkaline phosphatase activity, mineral deposition, and expression levels of phenotypic markers of osteoblastic differentiation in MC3T3-E1 pre-osteoblast...
February 1, 2018: Cell Biochemistry and Function
Ravi Kumar Gudipaneni, Raed F Aldahmeshi, Santosh R Patil, Mohammad Khursheed Alam
BACKGROUND: To assess the prevalence of malocclusion and orthodontic treatment need among adolescents using the dental health component (DHC) of the index of orthodontic treatment need (IOTN). METHODS: A descriptive cross-sectional study was conducted among 500 (mean age 16.25 ± 1.09) adolescents randomly selected from the northern border region of Saudi Arabia (KSA). The northern border region is sub-divided into three governorates: Ar'ar (186), Rafha (142) and Turayf (172)...
February 2, 2018: BMC Oral Health
Moneera M Al-Shawi, Magdy A Darwish, Moataza M Abdel Wahab, Nouf A Al-Shamlan
BACKGROUND: Misuse of antibiotics has become a global public health issue for several reasons, one of which is the rapid development of antibiotic resistance that leads to high morbidity and mortality. OBJECTIVES: The objective of this study was to study the misconceptions of parents of primary school children in Dammam, Khobar, and Dhahran about the use of antibiotics for upper respiratory tract (URT) symptoms; and also study perceptions, attitudes, and behavior toward antibiotic use and identify the factors affecting this...
January 2018: Journal of Family & Community Medicine
Ifrah Afzal, Muhammad Sajjad Ahmad, Sana Malik, Muhammad Ibrahim, Omar Salim Al-Ayed, Ghulam Qadir, Huda Al Doghaither, Munazza Gull
Eichhornia crassipes is an aquatic plant well known for its role in soil reclamation due to the containment of valuable nutrients. Moreover, its biomass is an abundant and low-cost biological resource. While pyrolysis of a biomass offers one of the cleanest methods to harness the bioenergy stored in the biomass. The present study was focused on evaluating the bioenergy potential of Eichhornia crassipes via pyrolysis. Biomass of E. crassipes was collected from a municipal wastewater pond. Oven dried powdered biomass of E...
January 21, 2018: Protein and Peptide Letters
Tihitinna Asmellash Belay, C Y Lin, H M Hsiao, M F Chang, J C Liu
In this study, we demonstrated that the choice of precursor has a strong effect on the reduction of nitrate (NO3-) using zero-valent copper (Cu0) synthesized by sodium borohydride (NaBH4). Different precursors: CuSO4, CuO, Cu2O, Cu powder, and Cu mesh were used to reduce NO3- at 677 mg-N/L under the reducing conditions of NaBH4. Compared with the prehydrolyzed samples, those prepared without prehydrolysis exhibited lower reduction rates, longer times and higher concentrations of nitrite (NO2-) intermediate...
January 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
Bilal Mohsin
BACKGROUND: Catheter related blood stream infections (CRBSI) are the leading cause of morbidity in HD patients. The majority of these infections relate to haemodialysis catheters. There is a paucity of local data on microbial agents responsible for CRBSI in our region. This prompted our study. METHODS: This Prospective observatory survey was conducted in Department of Nephrology, King Fahd Hospital, Hofuf KSA from Nov 2014 to Jan 2017 (26 months). It was performed on dialysis patients with HD catheters who developed features of CRBSI...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
Miskelyemen Abdelatti Elmekki, Mogahid M Elhassan, Hani A Ozbak, Ilham T Qattan, Satti M Saleh, Ali H Alharbi
Objective: To investigate the epidemiological trends of cutaneous leishmaniasis (CL) in Al-Madinah Al-Munawarah, western region of KSA. Materials and Methods: Four hundred and sixty-seven parasitologically confirmed CL cases attending Al-Meeqat Hospital, Al-Madinah, during 2012-2015, were included in this study. Results: Both Saudi and non-Saudi nationals were infected, with the highest infection rate being among Saudis (68.7%). Males were more affected than females as 86...
October 2017: Journal of Global Infectious Diseases
Emilio Almeida Torres Netto, Wafa Majed Al-Otaibi, Nikki L Hafezi, Sabine Kling, Haya M Al-Farhan, J Bradley Randleman, Farhad Hafezi
BACKGROUND/AIM: Keratoconus (KC) is a ectatic corneal disorder with marked progression during childhood and puberty that may lead to severe visual loss. In addition to KC prevalence, estimate shows major geographical variations; recent studies using Scheimpflug technology are in contrast to the 1980s and 1990s literature. The present study aims to determine the prevalence of KC in paediatric patients in Riyadh, Saudi Arabia (KSA). METHODS: This prospective, cross-sectional, observational, multicentre study collected data from paediatric patients from 6 years and 21 years of age who were seen at multiple non-ophthalmic emergency departments within KSA...
January 3, 2018: British Journal of Ophthalmology
Abdulrazack Amir, Brian R Matlaga, Justin B Ziemba, Salwa Sheikh
INTRODUCTION: Urolithiasis is a globally-distributed disease; however, its prevalence varies across countries and regions. Countries in the Middle East have been reported to have particularly high nephrolithiasis prevalence rates. To date, however, we have an incomplete understanding of the composition of stones seen in this region. Therefore, we performed a study to characterize stone composition over a 14-year period in the Eastern Province of the Kingdom of Saudi Arabia (KSA). MATERIALS AND METHODS: A retrospective review of all adult patients who had the composition of their upper urinary tract calculi analyzed at Johns Hopkins Aramco Healthcare (JHAH) between 1999 and 2013 was performed...
December 18, 2017: Clinical Nephrology
Fatimah Fahad Altaleb, Othman Mashfi Alshammari, Hala Mohammed Alanazi, Dina Anwar Aljaber, Arwa Bader Alanazi, Nagah Mohamed Abo El-Fetoh, Nesreen Ali Mohammed, Hadil Anwar Aljaber
Background: Cardiovascular diseases (CVD) are among the main causes of premature death and hospital admission worldwide, constituting a great economic burden on health care systems. Additionally, thyroid diseases may exert a deleterious effect on the outcomes of CVD patients. Aim: This study was conducted to identify the pattern and factors associated with CVD distribution and the relation with thyroid dysfunction in the study population. Methods: This cross sectional study was conducted on 181 participants in the cardiac center in Arar, Kingdom of Saudi Arabia (KSA), from September 2016 to March 2017...
October 2017: Electronic Physician
Mahmoud Mosli, Yaser Alnahdi, Abdusalam Alghamdi, Mohammad Baabdullah, Afnan Hadadi, Khaleel Khateery, Ibrahim Alsulami, Abdulaziz AlHoqail, Majid Almadi, Hani Jawa, Emad Aljahdli, Salem Bazarah, Yousif Qari
BACKGROUND/AIM: Early diagnosis of chronic illnesses and cancers mainly occurs at primary health care centers (PHCs) by primary health care physicians (PHPs). The incidence of colorectal cancer (CRC) in the Kingdom of Saudi Arabia (KSA) is rising and this has been attributed to many factors. The increasing incidence of CRC is compounded by nonadherence to screening recommendations. Therefore, evaluating PHPs knowledge, attitudes, and practices of screening for CRC is clinically important...
November 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
Amani S Awaad, Monerah R Alothman, Yara M Zain, Ghada M Zain, Saleh I Alqasoumi, Dina A Hassan
Plants are excellent sources of nutrition and highly bioactive substances that might use in the development of new drugs and pharmaceutical agents. Three species of the Genus Euphorbia (Family Euphorpiaceae), namely; Euphorbia granulata Forssk, Euphorbia helioscobia L., and Euphorbia hirta Linn growing in Ryiadh, KSA were air-dried, powdered, and their active materials were extracted with alcohol. The nutritional value phytochemical constituents and antimicrobial activity of the plants were determined. The chemical contents were similar in the three species; however, lipid profile of the plants showed that the stearic acid and lignoceric acid were detected only in E...
December 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
Abdulla A Alharthi, Ehab I El-Hallous, Iman M Talaat, Hamed A Alghamdi, Matar I Almalki, Ahmed Gaber
Purpose: Short stature affects approximately 2%-3% of children, representing one of the most frequent disorders for which clinical attention is sought during childhood. Despite assumed genetic heterogeneity, mutations or deletions in the short stature homeobox-containing gene (SHOX) are frequently detected in subjects with short stature. Idiopathic short stature (ISS) refers to patients with short stature for various unknown reasons. The goal of this study was to screen all the exons of SHOX to identify related mutations...
October 2017: Korean Journal of Pediatrics
M Rehan, J Gardy, A Demirbas, U Rashid, W M Budzianowski, Deepak Pant, A S Nizami
This study presents a preliminary assessment of biodiesel production from waste sources available in the Kingdom of Saudi Arabia (KSA) for energy generation and solution for waste disposal issues. A case study was developed under three different scenarios: (S1) KSA population only in 2017, (S2) KSA population and pilgrims in 2017, and (S3) KSA population and pilgrims by 2030 using the fat fraction of the municipal solid waste. It was estimated that S1, S2, and S3 scenarios could produce around 1.08, 1.10 and 1...
November 10, 2017: Bioresource Technology
Usama Shaheen, Nagwa Abdelkader Shoeib, Abeer Temraz, Mohamed I S Abdelhady
Background: Dipterygium glaucum Decne. herb is one of the common traditional plants with multiple medicinal uses. Objective: To isolate the major constituents and to investigate the antioxidant, antimicrobial, and cytotoxic activities of this herb. Materials and Methods: Methanolic extract of D. glaucum herb was fractionated using n-hexane, dichloromethane, and n-butanol. Butanol fraction was chromatographed using column chromatography and preparative thin layer chromatography to isolate the major constituents...
October 2017: Pharmacognosy Magazine
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