Browse publications by year: 2020

  1. Pui WC, Chieng TH, Siow SL, Nik Abdullah NA, Sagap I
    Asian Pac J Cancer Prev, 2020 Oct 01;21(10):2927-2934.
    PMID: 33112550 DOI: 10.31557/APJCP.2020.21.10.2927
    BACKGROUND: Various methods have been used for treatment of hemorrhagic radiation proctitis (HRP) with variable results. Currently, the preferred treatment is formalin application or endoscopic therapy with argon plasma coagulation. Recently, a novel therapy with colonic water irrigation and oral antibiotics showed promising results and more effective compared to 4% formalin application for HRP. The study objective is to compare the effect of water irrigation and oral antibiotics versus 4% formalin application in improving per rectal bleeding due to HRP and related symptoms such as diarrhoea, tenesmus, stool frequency, stool urgency and endoscopic findings.

    METHODS: We conducted a study on 34 patients with HRP and randomly assigned the patients to two treatment arm groups (n=17). The formalin group underwent 4% formalin dab and another session 4 weeks later. The irrigation group self-administered daily rectal irrigation at home for 8 weeks and consumed oral metronidazole and ciprofloxacin during the first one week. We measured the patients' symptoms and endoscopic findings before and after total of 8 weeks of treatment in both groups.

    RESULTS: Our study showed that HRP patients had reduced per rectal bleeding (p = 0.003) in formalin group, whereas irrigation group showed reduced diarrhoea (p=0.018) and tenesmus (p=0.024) symptoms. The comparison between the two treatment arms showed that irrigation technique was better than formalin technique for tenesmus (p=0.043) symptom only.

    CONCLUSION: This novel treatment showed benefit in treating HRP. It could be a new treatment option which is safe and conveniently self-administered at home or used as a combination with other therapies to improve the treatment outcome for HRP.
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    MeSH terms: Administration, Oral; Adult; Aged; Anti-Infective Agents/administration & dosage; Disinfectants/therapeutic use; Electrocoagulation/methods*; Female; Follow-Up Studies; Formaldehyde/therapeutic use*; Gastrointestinal Hemorrhage/etiology; Gastrointestinal Hemorrhage/pathology; Gastrointestinal Hemorrhage/therapy*; Humans; Therapeutic Irrigation/methods*; Metronidazole/administration & dosage; Middle Aged; Pelvic Neoplasms/pathology; Pelvic Neoplasms/radiotherapy; Proctitis/etiology; Proctitis/pathology; Proctitis/therapy*; Radiation Injuries/complications*; Radiotherapy/adverse effects*
  2. Ali R, Draman N, Mohd Yusoff SS, Norsa'adah B
    Asian Pac J Cancer Prev, 2020 Oct 01;21(10):2971-2978.
    PMID: 33112556 DOI: 10.31557/APJCP.2020.21.10.2971
    OBJECTIVE: To determine the level of self-efficacy for coping with breast cancer among Malaysian women and its association with socio-demographic and clinical variables.

    MATERIALS AND METHODS: This cross-sectional study involved 168 women diagnosed with breast cancer. The inclusion criteria were age >18 years old, having histologically confirmed breast cancer, and being diagnosed between January 1, 2009 to December 31, 2012. The exclusion criteria were being illiterate and having cognitive impairment. For data collection patients' medical records and the Cancer Behaviour Inventory-Brief (CBI-B) Malay version questionnaire were used. Simple and multiple logistic regression methods were used to analyse the data.

    RESULTS: Patients' mean (SD) age was 51.4 (10.8) years old. Most of the patients were Malays, married, diagnosed at stage 2 breast cancer (41%), and completed their breast cancer treatment. The mean score for self-efficacy for coping with breast cancer was 83.67 (95% CI: 81.87, 85.47). The significant factors positively correlated with self-efficacy for coping with breast cancer were higher educational background and a higher family income. However, factors such as a family history of breast cancer and breast surgery reduced the mean score of self-efficacy for coping with breast cancer.

    CONCLUSION: The mean score of self-efficacy for coping with breast cancer in this study was moderate. Self-efficacy for coping with breast cancer in Hospital Universiti Sains Malaysia was not adequate among sufferers and improvement is needed probably by providing education to these patients.

    MeSH terms: Adaptation, Psychological*; Adult; Aged; Aged, 80 and over; Breast Neoplasms/epidemiology; Breast Neoplasms/pathology; Breast Neoplasms/psychology*; Breast Neoplasms/surgery; Cross-Sectional Studies; Female; Follow-Up Studies; Humans; Malaysia/epidemiology; Middle Aged; Prognosis; Psychometrics; Quality of Life*; Surveys and Questionnaires; Self Efficacy*
  3. Soopramanien M, Khan NA, Abdalla SAO, Sagathevan K, Siddiqui R
    Asian Pac J Cancer Prev, 2020 Oct 01;21(10):3011-3018.
    PMID: 33112561 DOI: 10.31557/APJCP.2020.21.10.3011
    OBJECTIVES: It is noteworthy that several animal species are known to withstand high levels of radiation, and are exposed to heavy metals but rarely been reported to develop cancer. For example, the scorpion has been used as folk medicine in ancient civilizations of Iran and China, while amphibian skin is known to possess medicinal properties. Here, we elucidated the anti-tumour activity of the scorpion (Uropygi) and frog (Lithobates catesbeianus).

    MATERIALS AND METHODS: Animals were procured and their organ lysates and sera were prepared and tested against Michigan Cancer Foundation-7 breast cancer (MCF-7), prostate cancer (PC3), Henrietta Lacks cervical cancer (HeLa), and normal human keratinocyte cells. Exoskeleton, appendages and hepatopancreas were dissected from the scorpion, whereas liver, lungs, heart, oviduct, gastrointestinal tract, gall bladder, kidneys, eggs and sera were collected from frog and organ lysates/sera were prepared. Growth inhibition assays and cytotoxicity assays were performed.

    RESULTS: Appendages, exoskeleton lysates, and hepatopancreas from scorpion exhibited potent growth inhibition, and cytotoxic effects. Furthermore, lungs, liver, gastrointestinal tract, heart, oviduct, kidneys, eggs, and sera from frog displayed growth inhibition and cytotoxic effects.

    CONCLUSION: Organ lysates, sera of scorpion, and amphibians possess anti-tumour activities. This is a worthy area of research as the molecular identity of the active molecule(s) together with their mechanism of action will lead to the rational development of novel anticancer agent(s).

    MeSH terms: Animals; Antineoplastic Agents/pharmacology*; Anura; Humans; Neoplasms/drug therapy*; Neoplasms/pathology; Scorpions/chemistry*; Tissue Extracts/pharmacology*; Tumor Cells, Cultured; Apoptosis; Cell Proliferation
  4. Yap SL, Wong SS, Chew KS, Kueh JS, Siew KL
    Asian Pac J Cancer Prev, 2020 Oct 01;21(10):3077-3083.
    PMID: 33112570 DOI: 10.31557/APJCP.2020.21.10.3077
    BACKGROUND: Patient's financial ability is always the most critical imputes to treatment choice and adherence; as it translates into health outcomes such as survival rate and quality of life. Cancer care is likely to affect the patient's financial well-being, putting huge financial pressure to the families. Therefore, it is imperative to understand the confounding factors of financial toxicity among cancer survivors along the course of survivorship.

    METHODS: This study was designed in the form of cross-sectional analysis, in which, cancer survivors were recruited from the Sarawak General Hospital, the largest tertiary and referral public hospital in Sarawak. To capture the financial toxicity of the cancer survivors, the Comprehensive Score for Financial Toxicity (COST) instrument in its validated form was adopted. Multivariable logistic regression analysis was applied to determine the relationship between financial toxicity (FT) and its predictors.

    RESULTS: The median age of the 461 cancer survivors was 56 while the median score of COST was 22.0. Besides, finding from multivariable logistic regression revealed that low income households (OR: 6.893, 95% CI, 3.109-15.281) were susceptible to higher risk of financial toxicity, while elderly survivors above 50 years old reported a lower risk in financial toxicity. Also, survivors with secondary schooling (OR:0.240; 95%CI, 0.110-0.519) and above [College or university (OR: 0.242; 95% CI, 0.090-0.646)] suffer a lower risk of FT.

    CONCLUSION: Financial toxicity was found to be associated with survivors age, household income and educational level. In the context of cancer treatment within public health facility, younger survivors, households from B40 group and individual with educational attainment below the first level schooling in the Malaysian system of education are prone to greater financial toxicity. Therefore, it is crucial for healthcare policymakers and clinicians to deliberate the plausible risk of financial toxicity borne by the patient amidst the treatment process.

    MeSH terms: Aged; Cross-Sectional Studies; Health Expenditures/statistics & numerical data*; Female; Follow-Up Studies; Humans; Income; Malaysia/epidemiology; Male; Middle Aged; Neoplasms/economics*; Neoplasms/epidemiology; Neoplasms/therapy; Prognosis; Quality of Life*; Surveys and Questionnaires; Socioeconomic Factors*; Survival Rate; Cost of Illness*
  5. Zulkarnain S, Yunus N, Kandasamy R, Zun AB, Mat Zin AA
    Asian Pac J Cancer Prev, 2020 Oct 01;21(10):3085-3091.
    PMID: 33112571 DOI: 10.31557/APJCP.2020.21.10.3085
    OBJECTIVE: Glioma is the commonest primary malignant brain tumour. Diagnosis is made based on cytology smear, frozen section and histopathological examination. Intraoperative pathological diagnosis using either cytology smear, frozen section or combination of both, plays a crucial role in patient's future management and prognosis. This study aims to determine the accuracy of cytology smear and frozen section in glioma, and to compare the difference between both techniques.

    METHODS: A cross-sectional study was conducted involving 22 cases of glioma diagnosed intraoperatively from January 2013 until August 2019 in Hospital Universiti Sains Malaysia. The selected tissues were processed for cytology smear and frozen section. The remaining tissues were proceeded for paraffin section. The diagnosis was categorized as either low-grade or high-grade glioma based on cellularity, nuclear pleomorphism, mitotic count, microvascular proliferation and necrosis. The sensitivity and specificity of frozen section and cytology smears were determined based on paraffin section being as the gold standard. The accuracy of both techniques was compared using statistical analysis.

    RESULTS: The overall sensitivity and specificity of cytology smear were 100% and 76.9%, respectively. Meanwhile, the sensitivity and specificity of frozen section were 100% and 84.6%. There was no significant difference in diagnostic accuracy between cytology smear and frozen section in glioma (p>0.05).

    CONCLUSION: Cytology smears provides an alternative method for frozen section due to good cellularity and morphology on smear. Cytology smear is rapid, inexpensive, small amount of tissue requirement and less technical demand. This finding may benefit to the hospital or treatment centres where frozen section facility is unavailable.

    MeSH terms: Adolescent; Adult; Brain Neoplasms/epidemiology; Brain Neoplasms/pathology*; Brain Neoplasms/surgery; Child; Child, Preschool; Cross-Sectional Studies; Cytodiagnosis/methods*; Female; Follow-Up Studies; Frozen Sections; Glioma/epidemiology; Glioma/pathology*; Glioma/surgery; Humans; Infant; Infant, Newborn; Intraoperative Care*; Malaysia/epidemiology; Male; Middle Aged; Prognosis; Prospective Studies; Retrospective Studies; ROC Curve; Young Adult
  6. Ching SZ, Wong LP, Said MAB, Lim SH
    AIDS Educ Prev, 2020 Oct;32(5):416-431.
    PMID: 33112675 DOI: 10.1521/aeap.2020.32.5.416
    The aim of the study was to consolidate evidence on barriers and facilitators to PrEP adherence among men who have sex with men. PubMed, Science Direct, and EBSCO host were utilized to search for relevant articles. Six articles from PubMed, published between 2010 and 2018, were reviewed. Thematic analysis was employed to synthesize findings. At the individual level, HIV susceptibility, knowledge of PrEP, and individual lifestyle affected PrEP adherence. At the organizational level, cost of PrEP and quality of PrEP services influenced adherence to PrEP. At the societal level, social stigma, financial assistance or medical insurance, and family and peer support were determinants of PrEP adherence. Facilitators included perceived high risk of HIV infection and payment assistance, while barriers included social stigma and high cost of PrEP. Social stigma and structural level factors such as payment assistance and cost of PrEP need to be examined to ensure optimal adherence to PrEP.
    MeSH terms: Adult; Female; Health Services Accessibility*; Humans; Health Knowledge, Attitudes, Practice*; Male; HIV Infections/prevention & control*; Homosexuality, Male*; Anti-HIV Agents/administration & dosage*; Anti-HIV Agents/therapeutic use; Medication Adherence/psychology*; Social Stigma*; Pre-Exposure Prophylaxis/methods*; Sexual Minorities
  7. Suleiman JB, Nna VU, Zakaria Z, Othman ZA, Bakar ABA, Usman UZ, et al.
    Reproduction, 2020 12;160(6):863-872.
    PMID: 33112813 DOI: 10.1530/REP-20-0381
    Obesity and its accompanying complications predispose to abnormal testicular glucose metabolism, penile erectile dysfunction and subfertility. This study examined the potentials of orlistat in attenuating erectile dysfunction and fertility decline in high-fat diet (HFD)-induced obesity in male rats. Eighteen adult male Sprague-Dawley rats whose weights were between 250 and 300 g were divided into three groups (n = 6/group) namely: normal control (NC), HFD and HFD + orlistat (10 mg/kg body weight/day co-administered for 12 weeks) (HFD+O). During the 11th and 12th week, mating behaviour and fertility parameters were evaluated, and parameters of glucose metabolism were assessed at the end of the 12th week. Orlistat increased testicular mRNA levels of glucose transporters (Glut1 and Glut3), monocarboxylate transporters (Mct2 and Mct4) and lactate dehydrogenase type C (Ldhc), decreased intratesticular lactate and glucose levels, and LDH activity in obese rats. Furthermore, orlistat increased superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR) activities, and total antioxidant capacity (TAC), but decreased malondialdehyde level in the penis of obese rats. Similarly, orlistat improved penile cGMP level, sexual behaviour and fertility outcome in obese rats. Penile cGMP level correlated positively with total mounts and intromissions but correlated negatively with mount/intromission ratio. Orlistat improves fertility potential in obese state by targeting testicular lactate metabolism, penile oxidative stress and sexual behaviour in rats. Therefore, orlistat shows a promising protective effect and may preserve the fertility potential of obese men.
    MeSH terms: Animals; Infertility, Male/etiology; Infertility, Male/pathology; Infertility, Male/prevention & control*; Lactates/metabolism*; Male; Obesity/complications*; Obesity/pathology; Testis/drug effects; Testis/metabolism*; Ion Transport; Rats, Sprague-Dawley; Oxidative Stress; Anti-Obesity Agents/pharmacology*; Rats; Diet, High-Fat*
  8. Rohani MFM, Yonan SNM, Tagiling N, Zainon WMNW, Udin Y, Nawi NM
    Asian Spine J, 2020 Oct;14(5):629-638.
    PMID: 32213791 DOI: 10.31616/asj.2019.0308
    STUDY DESIGN: Retrospective study.

    PURPOSE: This study aims to semiquantitatively evaluate the standardized uptake value (SUV) of 99mTc-methylene diphosphonate (MDP) radionuclide tracer in the normal vertebrae of breast cancer patients using an integrated single-photon emission computed tomography (SPECT)/computed tomography (CT) scanner.

    OVERVIEW OF LITERATURE: Molecular imaging techniques using gamma cameras and stand-alone SPECT have traditionally been utilized to evaluate metastatic bone diseases. However, these methods lack quantitative analysis capabilities, impeding accurate uptake characterization.

    METHODS: A total of 30 randomly selected female breast cancer patients were enrolled in this study. The SUV mean (SUVmean) and SUV maximum (SUVmax) values for 286 normal vertebrae at the thoracic and lumbar levels were calculated based on the patients' body weight (BW), body surface area (BSA), and lean body mass (LBM). Additionally, 106 degenerative joint disease (DJD) lesions of the spine were also characterized, and both their BW SUVmean and SUVmax values were obtained. A receiver operating characteristic (ROC) curve analysis was then performed to determine the cutoff value of SUV for differentiating DJD from normal vertebrae.

    RESULTS: The mean±standard deviations for the SUVmean and SUVmax in the normal vertebrae displayed a relatively wide variability: 3.92±0.27 and 6.51±0.72 for BW, 1.05±0.07 and 1.75±0.17 for BSA, and 2.70±0.19 and 4.50±0.44 for LBM, respectively. Generally, the SUVmean had a lower coefficient of variation than the SUVmax. For DJD, the mean±standard deviation for the BW SUVmean and SUVmax was 5.26±3.24 and 7.50±4.34, respectively. Based on the ROC curve, no optimal cutoff value was found to differentiate DJD from normal vertebrae.

    CONCLUSIONS: In this study, the SUV of 99mTc-MDP was successfully determined using SPECT/CT. This research provides an approach that could potentially aid in the clinical quantification of radionuclide uptake in normal vertebrae for the management of breast cancer patients.

    MeSH terms: Body Surface Area; Body Weight; Bone Diseases; Female; Humans; Joint Diseases; Radioisotopes; Retrospective Studies; ROC Curve; Technetium Tc 99m Medronate; Tomography, Emission-Computed, Single-Photon; Gamma Cameras; Molecular Imaging; Single Photon Emission Computed Tomography Computed Tomography
  9. Yong PT, Arif N, Sharanjeet-Kaur S, Hairol MI
    PMID: 33105550 DOI: 10.3390/ijerph17217701
    Many East Asians apply double eyelid tape to create the double eyelid effect temporarily as a means of increasing their beauty. This study evaluated the effects of four-week wear of double eyelid tape on anterior ocular health in young adult women with single eyelids. Twenty-nine participants who met the inclusion criteria were recruited. The participants' anterior ocular health was examined including blinking characteristics (blink pattern and blink rate), ocular surface health (presence of corneal abrasion, corneal staining, conjunctival staining, corneal curvatures, meibomian gland dysfunction), tear break up time, intraocular pressure, and subjective comfort level. Participants were required to apply the double eyelid tape for at least eight hours a day and five days a week for four weeks. The parameters were re-measured at the end of each week. There was a significant increase in conjunctival staining, corneal staining, and meibomian gland dysfunction, with a significant reduction in tear break-up time and intraocular pressure. By week 3, all participants had incomplete blinks. There was no significant change in symptoms and subjective comfort level reported. Therefore, patients and eye care practitioners should be aware of the potential implications of double eyelid tape wear on ocular health, with no significant change in subjective comfort.
    MeSH terms: Adult; Eyelids*; Female; Humans; Meibomian Glands/pathology; Tears/metabolism; Vision, Ocular; Young Adult
  10. Adesipo A, Fadeyi O, Kuca K, Krejcar O, Maresova P, Selamat A, et al.
    Sensors (Basel), 2020 Oct 22;20(21).
    PMID: 33105622 DOI: 10.3390/s20215977
    Attention has shifted to the development of villages in Europe and other parts of the world with the goal of combating rural-urban migration, and moving toward self-sufficiency in rural areas. This situation has birthed the smart village idea. Smart village initiatives such as those of the European Union is motivating global efforts aimed at improving the live and livelihood of rural dwellers. These initiatives are focused on improving agricultural productivity, among other things, since most of the food we eat are grown in rural areas around the world. Nevertheless, a major challenge faced by proponents of the smart village concept is how to provide a framework for the development of the term, so that this development is tailored towards sustainability. The current work examines the level of progress of climate smart agriculture, and tries to borrow from its ideals, to develop a framework for smart village development. Given the advances in technology, agricultural development that encompasses reduction of farming losses, optimization of agricultural processes for increased yield, as well as prevention, monitoring, and early detection of plant and animal diseases, has now embraced varieties of smart sensor technologies. The implication is that the studies and results generated around the concept of climate smart agriculture can be adopted in planning of villages, and transforming them into smart villages. Hence, we argue that for effective development of the smart village framework, smart agricultural techniques must be prioritized, viz-a-viz other developmental practicalities.
    MeSH terms: Agriculture; Animals; Animal Diseases; Attention; Europe; European Union; Goals; Motivation; Population Dynamics; Farms
  11. Rafiq W, Bin Napiah M, Hartadi Sutanto M, Salah Alaloul W, Nadia Binti Zabri Z, Imran Khan M, et al.
    Materials (Basel), 2020 Oct 22;13(21).
    PMID: 33105633 DOI: 10.3390/ma13214704
    Moisture damage in hot mix asphalt pavements is a periodic but persistent problem nowadays, even though laboratory testing is performed to identify different moisture-susceptible mixtures. In this study, a Hamburg Wheel Tracking device (HWTD) was used for rutting tests which were conducted on control and a high percentage of recycled asphalt pavement (RAP), i.e., 30%, 50% and 100% of virgin mixtures, under air dry and water-immersed conditions. Similarly, the extracted bitumen from RAP was tested for binder physical properties. Results showed that the asphalt mixtures containing RAP have less rut depth as compared to the control mix both in air dry and immersion conditions and hence showed better anti-rutting properties and moisture stability. Stripping performance of control and RAP containing mixtures was also checked, concluding that the RAP mixture was greatly dependent on the interaction between the binder (virgin plus aged) and aggregates.
    MeSH terms: Hydrocarbons; Water; Physical Phenomena; Recycling
  12. Chen L, Ho CD, Jen LY, Lim JW, Chen YH
    Membranes (Basel), 2020 Oct 22;10(11).
    PMID: 33105658 DOI: 10.3390/membranes10110302
    We investigated the insertion of eddy promoters into a parallel-plate gas-liquid polytetrafluoroethylene (PTFE) membrane contactor to effectively enhance carbon dioxide absorption through aqueous amine solutions (monoethanolamide-MEA). In this study, a theoretical model was established and experimental work was performed to predict and to compare carbon dioxide absorption efficiency under concurrent- and countercurrent-flow operations for various MEA feed flow rates, inlet CO2 concentrations, and channel design conditions. A Sherwood number's correlated expression was formulated, incorporating experimental data to estimate the mass transfer coefficient of the CO2 absorption in MEA flowing through a PTFE membrane. Theoretical predictions were calculated and validated through experimental data for the augmented CO2 absorption efficiency by inserting carbon-fiber spacers as an eddy promoter to reduce the concentration polarization effect. The study determined that a higher MEA feed rate, a lower feed CO2 concentration, and wider carbon-fiber spacers resulted in a higher CO2 absorption rate for concurrent- and countercurrent-flow operations. A maximum of 80% CO2 absorption efficiency enhancement was found in the device by inserting carbon-fiber spacers, as compared to that in the empty channel device. The overall CO2 absorption rate was higher for countercurrent operation than that for concurrent operation. We evaluated the effectiveness of power utilization in augmenting the CO2 absorption rate by inserting carbon-fiber spacers in the MEA feed channel and concluded that the higher the flow rate, the lower the power utilization's effectiveness. Therefore, to increase the CO2 absorption flux, widening carbon-fiber spacers was determined to be more effective than increasing the MEA feed flow rate.
    MeSH terms: Algorithms; Amines; Carbon Dioxide; Membranes; Models, Theoretical; Polytetrafluoroethylene; Physical Phenomena; Bays
  13. Nadarajan SP, Karuthan SR, Rajasingam J, Chinna K
    PMID: 33105745 DOI: 10.3390/ijerph17217721
    The biggest challenge in moving toward a safer healthcare system is patient safety culture-that is, the prevention of harm to patients. Safe medical practices can prevent doing harm to the patients. For this, healthcare professionals must have good attitudes toward patient safety. Medical education plays an important role in promoting patient safety and patient safety attitudes. A study was conducted among medical students in Malaysia to assess their perceptions toward patient safety, using the 26-items Attitudes Toward Patient Safety Questionnaire (APSQ-III). In the analysis, the average percentage of positive responses (APPR) were computed for each domain, and APPR values of ≥75 were used as an indicator of positive perception. Out of the nine domains of APSQ, the students' attitude was positive in six-Safety Training (85.2%), Error Reporting (76.3%), Working Hours (89.5%), Error Inevitability (86.1%), Team Functioning (94.6%), and Patient Involvement (80.1%). The desired level of positive attitude was not met in Disclosure Responsibility (68.5%), Professional Incompetence (70.0%), and Safety Curriculum (71.1%). APRR for disclosure responsibility was high among the first-year students, but, generally, the effect wore off over the years of study. The results support the need to enhance perception on Disclosure Responsibility, Professional Incompetence, and Safety Curriculum among the medical students in Malaysia.
    MeSH terms: Attitude of Health Personnel*; Curriculum; Female; Humans; Malaysia; Male; Surveys and Questionnaires
  14. Fediuk R, Mugahed Amran YH, Mosaberpanah MA, Danish A, El-Zeadani M, Klyuev SV, et al.
    Materials (Basel), 2020 Oct 22;13(21).
    PMID: 33105753 DOI: 10.3390/ma13214712
    The incessant demand for concrete is predicted to increase due to the fast construction developments worldwide. This demand requires a huge volume of cement production that could cause an ecological issue such as increasing the rates of CO2 emissions in the atmosphere. This motivated several scholars to search for various alternatives for cement and one of such alternatives is called sulfur-based concrete. This concrete composite contributes to reduce the amount of cement required to make conventional concrete. Sulfur can be used as a partial-alternate binder to Ordinary Portland Cement (OPC) to produce sulfur-based concrete, which is a composite matrix of construction materials collected mostly from aggregates and sulfur. Sulfur modified concrete outperforms conventional concrete in terms of rapid gain of early strength, low shrinkage, low thermal conductivity, high durability resistance and excellent adhesion. On the basis of mentioned superior characteristics of sulfur-based concrete, it can be applied as a leading construction material for underground utility systems, dams and offshore structures. Therefore, this study reviews the sources, emissions from construction enterprises and compositions of sulfur; describes the production techniques and properties of sulfur; and highlights related literature to generate comprehensive insights into the potential applications of sulfur-based concrete in the construction industry today.
    MeSH terms: Atmosphere; Carbon Dioxide; Construction Materials; Sulfur; Thermal Conductivity; Construction Industry
  15. Khan A, Muhamad NA, Ismail H, Nasir A, Khalil AAK, Anwar Y, et al.
    Plants (Basel), 2020 Oct 22;9(11).
    PMID: 33105854 DOI: 10.3390/plants9111414
    Crocus sativus, a medicinally important herbaceous plant, has been traditionally used to cure coughs, colds, insomnia, cramps, asthma, and pain. Moreover, the therapeutic applications of saffron include its immunomodulatory and anticancer properties. The current experimental analysis was performed to explore the potential nutraceutical efficacy of corm, leaf, petal, and stigma of saffron ethanolic extracts as analgesic, anti-inflammatory, anticoagulant, and antidepressant using hot plate, carrageenan-induced paw edema, capillary tube and forced swim test, respectively in mice. The results indicated that among all the extracts, stigma ethanolic extract (SEE) represented maximum latency activity (72.85%) and edema inhibition (77.33%) followed by petal ethanolic extract (PEE) with latency activity and edema inhibition of 64.06 and 70.50%, respectively. Corm ethanolic extract (CEE) and leaf ethanolic extract (LEE) displayed mild analgesic activity of 22.40% and 29.07%, respectively. Additionally, LEE (53.29%) and CEE (47.47%) exhibited mild to moderate response against inflammation. The coagulation time of SEE (101.66 s) was almost equivalent to the standard drug, aspirin (101.66 s), suggesting a strong anticoagulant effect followed by PEE (86.5 s). LEE (66.83 s) represented moderate inhibitory effect on coagulation activity while CEE (42.83 s) showed neutral effect. Additionally, PEE and SEE also expressed itself as potential antidepressants with immobility time ≤76.66 s, while CEE (96.50 s) and LEE (106.83 s) indicated moderate to mild antidepressant efficacy. Based on the in vivo activities, saffron extract, particularly SEE and PEE, can be used as a potential nutraceutical and therapeutic agent due to its significant pharmacological activities.
    MeSH terms: Analgesics; Animals; Anti-Inflammatory Agents; Anticoagulants; Antidepressive Agents; Aspirin; Asthma; Carrageenan; Cough; Edema; Inflammation; Sleep Initiation and Maintenance Disorders; Muscle Cramp; Pain; Dietary Supplements; Crocus; Mice
  16. A Almusaylim Z, Jhanjhi NZ, Alhumam A
    Sensors (Basel), 2020 Oct 22;20(21).
    PMID: 33105891 DOI: 10.3390/s20215997
    The rapid growth of the Internet of Things (IoT) and the massive propagation of wireless technologies has revealed recent opportunities for development in various domains of real life, such as smart cities and E-Health applications. A slight defense against different forms of attack is offered for the current secure and lightweight Routing Protocol for Low Power and Lossy Networks (RPL) of IoT resource-constrained devices. Data packets are highly likely to be exposed in transmission during data packet routing. The RPL rank and version number attacks, which are two forms of RPL attacks, can have critical consequences for RPL networks. The studies conducted on these attacks have several security defects and performance shortcomings. In this research, we propose a Secure RPL Routing Protocol (SRPL-RP) for rank and version number attacks. This mainly detects, mitigates, and isolates attacks in RPL networks. The detection is based on a comparison of the rank strategy. The mitigation uses threshold and attack status tables, and the isolation adds them to a blacklist table and alerts nodes to skip them. SRPL-RP supports diverse types of network topologies and is comprehensively analyzed with multiple studies, such as Standard RPL with Attacks, Sink-Based Intrusion Detection Systems (SBIDS), and RPL+Shield. The analysis results showed that the SRPL-RP achieved significant improvements with a Packet Delivery Ratio (PDR) of 98.48%, a control message value of 991 packets/second, and an average energy consumption of 1231.75 joules. SRPL-RP provided a better accuracy rate of 98.30% under the attacks.
    MeSH terms: Cities; Physiological Phenomena; Protective Devices; Reproduction; Telemedicine; Wireless Technology; Social Networking
  17. Sharif Nia H, Heidari M, Naghavi N, Lehto RH, Haghdoost AA, Jafari-Koulaee A, et al.
    Omega (Westport), 2020 Oct 26.
    PMID: 33106088 DOI: 10.1177/0030222820966934
    This review study fills an important gap by aiming to determine the age changes in attempted and completed suicide in Iran during the past decade. A systematic review of related articles in international and Iranian databases from January 2008 to January 2020 was first conducted and relevant studies were extracted based on established criteria. Results showed that the mean age of suicide in Iran is 29.8 (range 27.7 - 31.8) years old for men and 27.4 (range 25.8 - 28.9) for women (P 
    MeSH terms: Adult; Female; Health Promotion; Humans; Iran; Male; Suicide; Suicidal Ideation
  18. Hashimoto Y, Endo T, Yamasaki T, Hyodo F, Itioka T
    Sci Rep, 2020 10 26;10(1):18279.
    PMID: 33106531 DOI: 10.1038/s41598-020-75010-y
    Accurate morphological ant mimicry by Myrmarachne jumping spiders confers strong protective benefits against predators. However, it has been hypothesized that the slender and constricted ant-like appearance imposes costs on the hunting ability because their jumping power to capture prey is obtained from hydraulic pressure in their bodies. This hypothesis remains to be sufficiently investigated. We compared the jumping and prey-capture abilities of seven Myrmarachne species and non-myrmecomorphic salticids collected from tropical forests in Malaysian Borneo and northeastern Thailand. We found that the mimics had significantly reduced abilities compared with the non-mimics. The analysis using geometric morphometric techniques revealed that the reduced abilities were strongly associated with the morphological traits for ant mimicry and relatively lower abilities were found in Myrmarachne species with a more narrowed form. These results support the hypothesis that the jumping ability to capture prey is constrained by the morphological mimicry and provide a new insight into understanding the evolutionary costs of accurate mimicry.
    MeSH terms: Animals; Biological Evolution; Flight, Animal/physiology*; Phenotype; Predatory Behavior/physiology*; Spiders/physiology*; Forests
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