1.Cross-education Effects of Wrist Flexor Strengthening on Grip Strength: Comparison of Eccentric and Concentric Training
Eng Chuan Tan ; Zuo-En Chan ; Muhammad Noh Zulfikri Mohd Jamali ; Mahadevi Barathi
Malaysian Journal of Medicine and Health Sciences 2024;20(No.2):71-75
Introduction: Time away from training and competition from sport injuries may lead to detrimental effects on muscle
strength and endurance. The cross-education effect plays an important role in preserving strength during recovery
and rehabilitation; however, the effects have been found to be inconclusive. In addition, the distinct impacts of eccentric and concentric strengthening exercises need to be explored. The objective of this study was to compare the
cross-education effects of eccentric and concentric wrist flexor strengthening exercises on hand grip strength among
recreational athletes. Methods: A total of 39 recreational athletes aged between 18-25 years old were randomly assigned into two groups of wrist flexor strengthening exercise: eccentric (ECC) and concentric (CON) training groups.
The training period for the study was 4 weeks with 3 sessions of strengthening exercises per week. Handgrip strength
was measured bilaterally, before and after the intervention using the JAMAR handgrip dynamometer. Results: Significant increases in hand grip strength were observed for the ECC and CON groups in both the trained and untrained
hands following 4 weeks of training. However, the handgrip strength between the two groups in the untrained hand
was not significantly different (p=0.64). The strength gain in the untrained hand was 9.8% and 10.8%, for ECC and
CON groups, respectively. Conclusion: The cross-education effect was significant in improving strength in the untrained hand. There was no difference in strength gains between concentric and eccentric strength training.
2.Construction of multi-epitope vaccine against the Rhipicephalus microplus tick: an immunoinformatics approach
Younas, M. ; Ashraf, K. ; Ijaz, M. ; Suleman, M. ; Chohan, T.A. ; Rahman, S.U. ; Rashid, M.I.
Tropical Biomedicine 2024;41(No.1):84-96
Rhipicephalus microplus, known as the hard tick, is a vector for the parasites Babesia spp. and
Anaplasma marginale, both of which can cause significant financial losses to the livestock industry.
There is currently no effective vaccine for R. microplus tick infestations, despite the identification of
numerous prospective tick vaccine candidates. As a result, the current research set out to develop
an immunoinformatics-based strategy using existing methods for designing a multi-epitope based
vaccination that is not only effective but also safe and capable of eliciting cellular and humoral immune
responses. First, R. microplus proteins Bm86, Subolesin, and Bm95 were used to anticipate and link B
and T-cell epitopes (HTL and CTL) to one another. Antigenicity testing, allergenicity assessment, and
toxicity screening were just a few of the many immunoinformatics techniques used to identify potent
epitopes. Multi-epitope vaccine design was chosen based on the antigenic score 0.935 that is promising
vaccine candidate. Molecular docking was used to determine the nature of the interaction between TLR2
and the vaccine construct. Finally, molecular dynamic simulation was used to assess the stability and
compactness of the resulting vaccination based on docking scores. The developed vaccine was shown
to be stable, have immunogenic qualities, be soluble, and to have high expression by in silico cloning.
These findings suggest that experimental investigation of the multi-epitope based vaccine designed in
the current study will produce achievable vaccine candidates against R. microplus ticks, enabling more
effective control of infestations.
3.Application of the Sleep C.A.L.M. Tool for Assessing Nocturia in a Large Nationally Representative Cohort
Joseph U. BORODA ; Benjamin De LEON ; Lakshay KHOSLA ; Muchi D. CHOBUFO ; Syed N. RAHMAN ; Jason M. LAZAR ; Jeffrey P. WEISS ; Thomas F. MONAGHAN
International Neurourology Journal 2024;28(Suppl 1):55-61
Purpose:
Nocturia significantly impacts patients’ quality of life but remains insufficiently evaluated and treated. The “Sleep C.A.L.M.” system categorizes the factors thought to collectively reflect most underlying causes of nocturia (Sleep disorders, Comorbidities, Actions [i.e., modifiable patient behaviors such as excess fluid intake], Lower urinary tract dysfunction, and Medications). The purpose of this study was to assess the association of nocturia with the Sleep C.A.L.M. categories using a nationally representative dataset.
Methods:
Retrospective analysis of the National Health and Nutrition Examination Survey from 2013/14–2017/18 cycles was conducted. Pertinent questionnaire, laboratory, dietary, and physical examination data were used to ascertain the presence of Sleep C.A.L.M. categories in adults ≥20 years of age. Nocturia was defined as ≥2 nighttime voids.
Results:
A total of 12,274 included subjects were included (51.6% female; median age, 49.0 years [interquartile range, 34.0–62.0 years]; 27.6% nocturia). Among subjects with nocturia, the prevalence of 0, ≥1, and ≥2 Sleep C.A.L.M. categories was 3.5% (95% confidence interval [CI], 2.8%–4.4%), 96.5% (95% CI, 95.6%–97.2%), and 81.2% (95% CI, 78.9%–83.3%), respectively. Compared to those with 0–1 Sleep C.A.L.M. categories, the adjusted odds of nocturia in subjects with 2, 3, and 4–5 Sleep C. A.L.M. categories were 1.77 (95% CI, 1.43–2.21), 2.33 (1.89–2.87), and 3.49 (2.81–4.35), respectively (P<0.001). Similar trends were observed for most age and sex subgroups. When assessed individually, each of the 5 Sleep C.A.L.M. categories were independently associated with greater odds of nocturia, which likewise persisted across multiple age and sex subgroups.
Conclusions
Sleep C.A.L.M. burden is associated with increased odds of nocturia in a dose-dependent fashion, and potentially a relevant means by which to organize the underlying etiologies for nocturia among community-dwelling adults.
4.The Impact of COVID-19 on Healthcare Services in Bangladesh: A Qualitative Study on Healthcare Providers’ Perspectives
Sharmin PARVEEN ; Md. Shahriar MAHBUB ; Nasreen NAHAR ; K. A. M. MORSHED ; Nourin RAHMAN ; Ezzat Tanzila EVANA ; Nazia ISLAM ; Abu Said Md. Juel MIAH
Journal of Preventive Medicine and Public Health 2024;57(4):356-369
Objectives:
The objective of this study was to explore healthcare providers’ experiences in managing the coronavirus disease 2019 (COVID-19) pandemic and its impact on healthcare services.
Methods:
A qualitative study was conducted with 34 healthcare professionals across 15 districts in Bangladesh. Among the participants, 24 were health managers or administrators stationed at the district or upazila (sub-district) level, and 10 were clinicians providing care to patients with COVID-19. The telephone interviews were conducted in Bangla, audio-recorded, transcribed, and then translated into English. Data were analyzed thematically.
Results:
Most interviewees identified a range of issues within the health system. These included unpreparedness, challenges in segregating COVID-19 patients, maintaining isolation and home quarantine, a scarcity of intensive care unit beds, and ensuring continuity of service for non-COVID-19 patients. The limited availability of personal protective equipment, a shortage of human resources, and logistical challenges, such as obtaining COVID-19 tests, were frequently cited as barriers to managing the pandemic. Additionally, changes in the behavior of health service seekers, particularly increased aggression, were reported. The primary motivating factor for healthcare providers was the willingness to continue providing health services, rather than financial incentives.
Conclusions
The COVID-19 pandemic presented a unique set of challenges for health systems, while also providing valuable lessons in managing a public health crisis. To effectively address future health crises, it is crucial to resolve a myriad of issues within the health system, including the inequitable distribution of human resources and logistical challenges.
5.Postmortem lung and heart examination of COVID-19 patients in a case series from Jordan
Maram ABDALJALEEL ; Isra TAWALBEH ; Malik SALLAM ; Amjad Bani HANI ; Imad M. AL-ABDALLAT ; Baheth Al OMARI ; Sahar AL-MUSTAFA ; Hasan ABDER-RAHMAN ; Adnan Said ABBAS ; Mahmoud ZUREIGAT ; Mousa A. AL-ABBADI
Journal of Pathology and Translational Medicine 2023;57(2):102-112
Background:
Coronavirus disease 2019 (COVID-19) has emerged as a pandemic for more than 2 years. Autopsy examination is an invaluable tool to understand the pathogenesis of emerging infections and their consequent mortalities. The aim of the current study was to present the lung and heart pathological findings of COVID-19–positive autopsies performed in Jordan.
Methods:
The study involved medicolegal cases, where the cause of death was unclear and autopsy examination was mandated by law. We included the clinical and pathologic findings of routine gross and microscopic examination of cases that were positive for COVID-19 at time of death. Testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was confirmed through molecular detection by real-time polymerase chain reaction, serologic testing for IgM and electron microscope examination of lung samples.
Results:
Seventeen autopsies were included, with male predominance (76.5%), Jordanians (70.6%), and 50 years as the mean age at time of death. Nine out of 16 cases (56.3%) had co-morbidities, with one case lacking such data. Histologic examination of lung tissue revealed diffuse alveolar damage in 13/17 cases (76.5%), and pulmonary microthrombi in 8/17 cases (47.1%). Microscopic cardiac findings were scarcely detected. Two patients died as a direct result of acute cardiac disease with limited pulmonary findings.
Conclusions
The detection of SARS-CoV-2 in postmortem examination can be an incidental or contributory finding which highlights the value of autopsy examination to determine the exact cause of death in controversial cases.
6.Bat coronavirus was detected positive from insectivorous bats in Krau Wildlife Reserve Forest
Siew, Z.Y. ; Lai, Z.J. ; Ho, Q.Y. ; Ter, H.C. ; Ho, S.H. ; Wong, S.T. ; Gani, M. ; Leong, P.P. ; Voon, K.
Tropical Biomedicine 2023;40(No.4):462-470
Bats are flying mammals with unique immune systems that allow them to hold many pathogens.
Hence, they are recognised as the reservoir of many zoonotic pathogens. In this study, we performed
molecular detection to detect coronaviruses, paramyxoviruses, pteropine orthoreoviruses and dengue
viruses from samples collected from insectivorous bats in Krau Reserve Forest. One faecal sample from
Rhinolophus spp. was detected positive for coronavirus. Based on BLASTN, phylogenetic analysis and
pairwise alignment-based sequence identity calculation, the detected bat coronavirus is most likely to
be a bat betacoronavirus lineage slightly different from coronavirus from China, Philippines, Thailand
and Luxembourg. In summary, continuous surveillance of bat virome should be encouraged, as Krau
Reserve Forest reported a wide spectrum of biodiversity of insectivorous and fruit bats. Moreover,
the usage of primers for the broad detection of viruses should be reconsidered because geographical
variations might possibly affect the sensitivity of primers in a molecular approach.
7.Orally Disintegrating Film: A Review of Its Formulation and Manufacturing Method
Kai Bin Liew ; Ganesan Gobal ; Hanifah Mohd Rofiq ; Hiu Ching Phang ; Siew-Keah Lee ; Long Chiau Ming ; A.B.M. Helal Uddin ; Yik Ling Chew ; Vijayakumar Lakshminarayanan
Malaysian Journal of Medicine and Health Sciences 2023;19(No.6):297-303
Oral route drug delivery system is still considered as the most convenient and patient friendly drug delivery route.
Over the decades, many research has been performed to improve the functionality oral dosage form. Orally disintegrating film (ODF) is a newer oral drug delivery system, which is in the form of a thin film that will disintegrate in
the oral cavity within a matter of seconds. The aim of this review paper is to recap ODF, its benefits, formulation
contents and manufacturing method. With more research and development work has been conducted on ODF, the
dosage form is expected to be manufactured and scaled up to be commercializable products to be sold in the market.
8.In Silico Screening of Natural Products as Potential Inhibitors of SARS-CoV-2 Using Molecular Docking Simulation.
Rajib HOSSAIN ; Chandan SARKAR ; Shardar Mohammad Hafiz HASSAN ; Rasel Ahmed KHAN ; Mohammad ARMAN ; Pranta RAY ; Muhammad Torequl ISLAM ; Sevgi Durna DAŞTAN ; Javad SHARIFI-RAD ; Zainab M ALMARHOON ; Miquel MARTORELL ; William N SETZER ; Daniela CALINA
Chinese journal of integrative medicine 2022;28(3):249-256
OBJECTIVE:
To explore potential natural products against severe acute respiratory syndrome coronavirus (SARS-CoV-2) via the study of structural and non-structural proteins of human coronaviruses.
METHODS:
In this study, we performed an in-silico survey of 25 potential natural compounds acting against SARS-CoV-2. Molecular docking studies were carried out using compounds against 3-chymotrypsin-like protease (3CLPRO), papain-like protease (PLPRO), RNA-dependent RNA polymerase (RdRp), non-structural protein (nsp), human angiotensin converting enzyme 2 receptor (hACE2R), spike glycoprotein (S protein), abelson murine leukemia viral oncogene homolog 1 (ABL1), calcineurin-nuclear factor of activated T-cells (NFAT) and transmembrane protease serine 2.
RESULTS:
Among the screened compounds, amentoflavone showed the best binding affinity with the 3CLPRO, RdRp, nsp13, nsp15, hACE2R. ABL1 and calcineurin-NFAT; berbamine with hACE2R and ABL1; cepharanthine with nsp10, nsp14, nsp16, S protein and ABL1; glucogallin with nsp15; and papyriflavonol A with PLPRO protein. Other good interacting compounds were juglanin, betulinic acid, betulonic acid, broussooflavan A, tomentin A, B and E, 7-methoxycryptopleurine, aloe emodin, quercetin, tanshinone I, tylophorine and furruginol, which also showed excellent binding affinity towards a number of target proteins. Most of these compounds showed better binding affinities towards the target proteins than the standard drugs used in this study.
CONCLUSION
Natural products or their derivatives may be one of the potential targets to fight against SARS-CoV-2.
Animals
;
Antiviral Agents/therapeutic use*
;
Biological Products/pharmacology*
;
COVID-19/drug therapy*
;
Humans
;
Mice
;
Molecular Docking Simulation
;
SARS-CoV-2
9.Prevalence and Associated Factors of Diabetic Retinopathy among Type 2 Diabetes Mellitus Patients in Brunei Darussalam: A Cross-sectional Study
Sajid Adhi RAJA ; Vui Heng CHONG ; Noor A. RAHMAN ; Lilabi M P SHAKIR ; Joe KNIGHTS
Korean Journal of Ophthalmology 2022;36(1):26-35
Purpose:
To determine the prevalence of diabetic retinopathy (DR) and the factors associated with retinopathy among type 2 diabetes mellitus (DM) patients in Brunei Darussalam.
Methods:
Cross-sectional study of all type 2 DM patients who attended diabetic eye screening over a 3-month period at one of four government hospitals. We assessed association between DR with the following variables: age, sex, glycated hemoglobin (HbA1c), duration of DM, hypertension, hyperlipidemia, and microalbuminuria.
Results:
There were 341 patients (female, 58.9%; mean age, 55.3 ± 11.9 years) with a mean duration of DM of 9.4 ± 7.4 years and mean serum HbA1c of 8.4% ± 1.9%. The overall prevalence of any DR was 22.6% (95% confidence interval, 18.8–27.1) with prevalence rates of 4.1% (95% confidence interval, 2.1–6.4) for proliferative DR and 9.7% (95% confidence interval, 6.8–13.2) for vision-threatening DR. Multivariate analysis showed that DR was significantly associated with certain age groups (reduced in older age groups), longer duration of DM (11 years or more), poor control (HbA1c >9.0%) and presence of any microalbuminuria.
Conclusions
DR affects one in five patients with DM in Brunei Darussalam, comparable to rates reported for other Asian populations. It is especially worrying that one in ten patients with DM had vision-threatening DR. DR was significantly associated with longer duration of DM, poor control and presence of microalbuminuria but reduced in older age groups. It is important to advocate good control right from the time of diagnosis of DM and institute timely and effective management of retinopathy. DR was significantly associated with longer duration of DM, poor control of diabetes, and presence of microalbuminuria but reduced in older age groups.
10.Impact of Aging on Urinary Natriuretic Peptides in Nocturia and Nocturnal Polyuria
Lakshay KHOSLA ; Joseph U. BORODA ; Joshua SALAMA ; Syed N. RAHMAN ; Danielle J. GORDON ; Matthew W. MOY ; Yonatan AKIVIS ; Alla AKIVIS ; Jason M. LAZAR ; Jeffrey P. WEISS ; Lori A. BIRDER
International Neurourology Journal 2022;26(2):135-143
Purpose:
The pathophysiology of nocturia and nocturnal polyuria (NP), conditions that become more prevalent with aging, may in part be explained by changes in hormones involved in water homeostasis. The purpose of this study was to analyze the impact of aging on urinary natriuretic peptides in nocturia and NP.
Methods:
Patients aged ≥18 years completed 24-hour bladder diaries for assessment of nocturia and NP. They were divided into subgroups of ≥65 years old and <65 years old. Urine samples were collected and analyzed for natriuretic peptide (NT-proANP, NT-proBNP, and NT-proCNP) levels. Peptide levels were compared between patients with and without nocturia/NP and within age subgroups; correlation to the NP index (NPi) was determined.
Results:
Compared to patients without nocturia (N=15), patients with nocturia (N=36) had higher median levels of urinary NT-proANP (15.8 pmol/mmol Cr vs. 10.9 pmol/mmol Cr, P=0.016) and NT-proBNP (6.3 pmol/mmol Cr vs. 4.5 pmol/mmol Cr, P=0.021), but showed no differences in NT-proCNP (2.4 pmol/mmol Cr vs. 2.5 pmol/mmol Cr, P=0.967). Patients ≥65 years old with nocturia had higher NT-proANP (29.8 pmol/mmol Cr vs. 11.0 pmol/mmol Cr, P<0.001) and NT-proBNP (9.6 pmol/mmol Cr vs. 5.0 pmol/mmol Cr, P<0.001) than patients <65 years old. Additionally, patients with NP (N=30) showed higher urinary NT-proANP (19.6 pmol/mmol Cr vs. 10.5 pmol/mmol Cr, P<0.001) and NT-proBNP (6.7 pmol/mmol Cr vs. 4.7 pmol/mmol Cr, P=0.020) compared to patients without NP (N=21). NP patients ≥65 years had higher NT-proANP (29.8 pmol/mmol Cr vs. 12.5 pmol/mmol Cr, P<0.001) and NT-proBNP (9.6 pmol/mmol Cr vs. 4.4 pmol/mmol Cr, P=0.004) than patients <65 years old. NPi positively correlated with urinary NT-proANP (RS=0.417, P=0.002) and NT-proBNP (RS=0.303, P=0.031), but not with NT-proCNP (RS=-0.094, P=0.510).
Conclusions
Since urinary NT-proANP and NT-proBNP were greater in aged patients with nocturia and NP, natriuretic peptides may contribute to the pathophysiology of these conditions and further research should aim to explore them as targets for management.


Result Analysis
Print
Save
E-mail