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1.
Mymensingh Med J ; 33(4): 955-961, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39351710

RESUMO

Obesity is a major global health issue and WHO points out that 1 in 3 people globally is clinically obese. Obesity is a condition of having an excessive amount of body fat and is linked with several health disorders that include metabolic syndrome, cardiovascular diseases as well as liver diseases. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) are usually used to assess liver function. It is established that obesity results in many cases of liver disorders known as steatosis or non-alcoholic fatty liver disease (NAFLD). It is the excessive deposit of fat within the liver cells that may result in inflammation, fibrosis and cirrhosis. Studies on obesity have established that obese subjects significantly tend to have higher liver enzymes like ALT and AST than non-obese adults. This study aims to compare these two liver enzymes between these two groups in the hopes of shedding light on how obesity impacts the liver and offers these biomarkers for NAFLD. The study was designed to assess the status of liver function in adult obese individuals by examining key markers, including serum Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST), and to compare them with non-obese adults. The present cross-sectional study was carried out in the Department of Biochemistry, Mymensingh Medical College, Mymensingh, in collaboration with the Department of Endocrinology and Medicine, Mymensingh Medical College Hospital, from Octy 2023 to June 2024. The subjects were selected based on inclusion and exclusion criteria by purposive non-random sampling. A total of 200 participants took part in this study. Out of them, 100 were selected as case (obese adults) and another 100 non-obese adults were selected as control. In this study, serum ALT and AST levels were measured for analytical study. All the values were expressed as mean±SD. Statistical analysis was done using by using SPSS Windows package version 26.0. The statistical significance of the difference between the case and control was calculated using Student's unpaired 't'- test. Pearson's correlation is done to see the level of significance. After careful evaluation, the mean±SD values of serum ALT were 37.14±15.18 U/L and 21.92±5.10 U/L in case and control groups respectively, and mean±SD values of serum AST were 41.15±15.24 U/L and 25.01±6.65 U/L in case and control group respectively. This study revealed that mean serum ALT and AST levels were significantly increased in obese adults. There was a significant positive correlation found between BMI with serum ALT and AST levels. Analyzing the findings of this cross-sectional study, significant alterations in serum ALT and AST levels were observed among obese adults.


Assuntos
Alanina Transaminase , Aspartato Aminotransferases , Hepatopatia Gordurosa não Alcoólica , Obesidade , Humanos , Alanina Transaminase/sangue , Obesidade/sangue , Obesidade/complicações , Aspartato Aminotransferases/sangue , Adulto , Masculino , Feminino , Estudos Transversais , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/sangue , Biomarcadores/sangue
2.
Heliyon ; 10(15): e34976, 2024 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-39170449

RESUMO

Objective: Ovarian cancer is a lethal gynaecological malignancy with unsatisfactory 5 year survival rates of 30-50 %. Cell immunotherapy is a promising new cancer treatment where immune cells, such as Natural Killer (NK) cells, are administered to enable the patient to fight cancer through direct cytotoxicity. NK cells orchestrate an adaptive immune response by enabling the release of tumour antigens. NK cell cytotoxicity and effector responses are largely driven by TRAIL engagement. In this study we investigated the cytotoxic potential of a human NK cell line that were modified to express a potent DR5 specific TRAIL variant. We hypothesised that this modification would enhance NK cell cytotoxicity against TRAIL sensitive and resistant ovarian cancer cell lines in vitro. Methods: KHYG-1 human NK cells were modified with a TRAIL variant targeting DR5 (TRAILv-KHYG-1). Human ovarian cancer cell lines, OVCAR-3 and SKOV-3, were cultured with modified or non-modified NK cells at different effector:target (E:T) ratios for 4 or 16 h. Apoptosis was assessed by Annexin-APC and 7-AAD and measured using flow cytometry. Apoptotic cells were defined as annexin V 7-AAD double positive. Cytokine expression was measured by multiplex ELISA, and analysed by flow cytometry. Results: Modified and non-modified NK cells significantly reduced OVCAR-3 cell viability as compared to OVCAR-3 cells that were cultured alone after 4 and 16 h treatment. OVCAR-3 cell viability was reduced after treatment with 1:1 E:T ratio with TRAILv-KHYG-1 cells after 16 h. On the contrary, neither NK cell line had any effect of SKOV-3 cell viability despite SKOV-3 cells having more DR5 surface expression compared to OVCAR-3 cells. Conclusions: TRAILv-KHYG-1 cells significantly reduced OVCAR-3 cell viability as compared to non-modified NK cells. However, no significant reduction in viability was observed when SKOV-3 cell were cultured with either NK cells, despite having more DR5 surface expression compared to OVCAR-3 cells. These data indicate that mechanisms other than DR5 expression drive TRAIL resistance in ovarian cancer.

3.
Ann R Coll Surg Engl ; 2024 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-39081121

RESUMO

INTRODUCTION: Wounds are invariably dressed postoperatively but the evidence for the timing of dressing changes is limited. This meta-analysis evaluated whether the relative risk of wound infection varies depending on when dressings are changed. METHODS: A frequentist random-effects network meta-analysis was conducted on the results of a systematic review of the MEDLINE®, Ovid®, Scopus®, Web of Science™ and PubMed® databases and the Cochrane Central Register of Controlled Trials performed in May 2023. Evidence quality was graded using the Confidence In Network Meta-Analysis tool. RESULTS: A total of 4 studies were included with 878 patients. A significant increase in the relative risk of wound infection was found when dressings were left in situ for more than 4.5 days when compared with 48 hours (3.18, 95% confidence interval: 1.22-8.33). There were no significant differences in the relative risk of infection between the other groups. Model heterogeneity and inconsistency were insignificant (Cochran's Q: 0.44, p=0.51). The quality of the evidence was graded as generally very low and risk of bias evaluations showed it to be of high concern for bias. CONCLUSIONS: Late dressing changes significantly increase the risks of wound infection and changes at 48 hours minimise these risks. There was no advantage demonstrated for earlier dressing changes. Ensuring that dressings are changed appropriately can minimise patient harm and health service costs.

4.
Nat Commun ; 15(1): 5029, 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38866733

RESUMO

Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black-hole and neutron-star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with electron-positron pairs. Their role in the dynamics of such environments is in many cases believed to be fundamental, but their behavior differs significantly from typical electron-ion plasmas due to the matter-antimatter symmetry of the charged components. So far, our experimental inability to produce large yields of positrons in quasi-neutral beams has restricted the understanding of electron-positron pair plasmas to simple numerical and analytical studies, which are rather limited. We present the first experimental results confirming the generation of high-density, quasi-neutral, relativistic electron-positron pair beams using the 440 GeV/c beam at CERN's Super Proton Synchrotron (SPS) accelerator. Monte Carlo simulations agree well with the experimental data and show that the characteristic scales necessary for collective plasma behavior, such as the Debye length and the collisionless skin depth, are exceeded by the measured size of the produced pair beams. Our work opens up the possibility of directly probing the microphysics of pair plasmas beyond quasi-linear evolution into regimes that are challenging to simulate or measure via astronomical observations.

5.
Mymensingh Med J ; 33(2): 540-543, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38557538

RESUMO

Globally preeclampsia is a major cause of maternal & perinatal morbidity & mortality. Zinc is an important trace element which is essential in pregnancy for fetal growth. Essentiality of zinc during pregnancy is evident. The cross sectional study was performed to estimate the comparison of serum zinc level in between preeclamptic patient and normal pregnancy. This study was conducted from July 2016 to June 2017 in the Department of Biochemistry, Mymensingh Medical College, Mymensingh, Bangladesh. Total 100 pregnant women were included as study population. Out of 100 subjects 50 were preeclamptic patients as case group and another 50 were normal pregnant women as control group. Serum zinc was determined by colorimetric method. The statistical analysis was done by SPSS windows package version 21.0. The mean±SD of case group was 59.30±5.22 and control group was 65.26±5.99mg/dl. Statistical difference was calculated by Student's unpaired 't' test. After analysis it showed that the mean±SD of serum zinc level was highly significantly (p<0.001) decreased in case group that in comparison to control group.


Assuntos
Pré-Eclâmpsia , Humanos , Gravidez , Feminino , Bangladesh , Estudos Transversais , Estudos de Casos e Controles , Zinco
6.
Mymensingh Med J ; 33(1): 307-310, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38163809

RESUMO

Tuberculosis has been described as the second great "Imitator" as it can imitate various other disease processes. The manifestations of genitourinary tuberculosis are protean in nature; still tuberculosis is a health concern in South-East Asia region. Tuberculosis of the cervix is rarely found and accounts for 5-10% among all types of genital tuberculosis. Despite meticulous history and clinical examination does not always lead to suspect this disease, the definitive diagnosis is based on the demonstration of the characteristic lesion on histopathology or on bacterial isolation. We are reporting a case of a 26-years-old woman who presented with secondary amenorrhea and a benign looking endocervical polyp. Diagnosis of cervical tuberculosis could be clinched after tissue biopsy which revealed caseous granuloma on histopathological examination along with other supportive laboratory investigation reports. Patient was subsequently started on antitubercular therapy (ATT) according to directly observed treatment schedule- category I, resulting in resumption of her menses after four months of starting of ATT. An awareness of the atypical clinical manifestations of tuberculosis is important, especially in regions where tuberculosis continues to be a major public health problem, such as Bangladesh. One should have high index of suspicion in order to diagnose tuberculosis of cervix in such cases, especially in high prevalence areas, so that patients can be managed appropriately with antitubercular therapy and complications can be prevented.


Assuntos
Tuberculose , Neoplasias do Colo do Útero , Feminino , Humanos , Adulto , Colo do Útero/microbiologia , Colo do Útero/patologia , Neoplasias do Colo do Útero/diagnóstico , Antituberculosos/uso terapêutico , Tuberculose/tratamento farmacológico , Biópsia
8.
J Hosp Infect ; 145: 22-33, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38157940

RESUMO

BACKGROUND: Infection prevention and control (IPC) is a critical component of delivering safe, effective and high-quality healthcare services, and eliminating avoidable healthcare-associated infections (HAIs) in health facilities, predominantly in population-dense settings such as Bangladesh. AIM: Our study aimed to assess the effect of an integrated intervention package in improving the IPC level of the health facilities in Bangladesh. METHODS: We conducted a pre-post intervention study in six district hospitals (DHs) and 13 Upazila Health Complexes (UHCs) in the six districts of Bangladesh. Baseline and endline assessments were conducted between March and December 2021 using the adapted World Health Organization Infection Prevention and Control Assessment Framework (WHO-IPCAF) tool. The IPCAF score, ranging from 0-800, was calculated by adding the scores of eight components, and the IPC promotion and practice level was categorized as Inadequate (0-200), Basic (201-400), Intermediate (401-600) and Advanced (601-800). The integrated intervention package including IPC committee formation, healthcare provider training, logistics provision, necessary guidelines distribution, triage/flu corners establishment, and infrastructure development was implemented in all facilities. RESULTS: The average IPCAF score across all the facilities showed a significant increase from 16% (95% CI: 11.5-20.65%) to 54% (95% CI: 51.4-57.1%). Overall, the IPCAF score increased by 34 percentage points (P<0.001) in DHs and 40 percentage points (P<0.001) in UHCs. Following the intervention, 12 (three DHs, nine UHCs) of 19 facilities progressed from inadequate to intermediate, and another three DHs upgraded from basic to intermediate in terms of IPC level. CONCLUSION: The integrated intervention package improved IPCAF score in all facilities.


Assuntos
Infecção Hospitalar , Controle de Infecções , Humanos , Bangladesh , Infecção Hospitalar/prevenção & controle , Instalações de Saúde , Qualidade da Assistência à Saúde
9.
Nanoscale Adv ; 5(24): 6944-6957, 2023 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-38059027

RESUMO

The current article presents a huge enhancement in the field emission characteristics of zinc oxide (ZnO) micro/nanorods by nickel doping. The synthesis of pure and nickel-doped zinc oxide (ZnO) micro/nanorods was done by a simple low-temperature chemical method. Both the as-prepared pure and doped samples were analyzed by X-ray diffraction and electron microscopy to confirm the proper phase formation and the developed microstructure. UV-vis transmittance spectra helped in determining the band gap of the samples. Fourier-Transform Infrared Spectroscopy (FTIR) spectra showed the different bonds present in the sample, whereas X-ray Photoelectron Spectroscopy (XPS) confirmed the presence of nickel in the doped sample. Photoluminescence (PL) spectra showed that after doping, the band-to-band transition was affected, whereas defect-induced transition had increased significantly. After the nickel doping, contact angle measurement revealed a significant decrease in the sample's surface energy, leading to a remarkably high water contact angle (within the superhydrophobic region). Simulation through ANSYS suggested that the doped sample has the potential to function as an efficient cold emitter, which was also verified experimentally. The cold emission characteristics of the doped sample showed a significant improvement, with the turn-on field (corresponding to J = 1 µA cm-2) reduced from 5.34 to 2.84 V µm-1. The enhancement factor for the doped sample reached 3426, approximately 1.5 times higher compared to pure ZnO. Efforts have been made to explain the results, given the favorable band bending as well as the increased number of effective emission sites.

10.
Mymensingh Med J ; 32(4): 927-932, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37777882

RESUMO

Chronic obstructive pulmonary disease (COPD) remains a major public health problem with relatively high prevalence rates worldwide (5.0-13.0%). COPD is a major cause of morbidity and mortality worldwide and results in an economic and social burden that is both substantial and increasing. The purpose of the study was to explore the relationship of biochemical alterations of serum magnesium and uric acid with frequent exacerbations, hypoxia, increase hospital stay, morbidity and mortality in patients with COPD. This cross-sectional study was carried out in the Department of Biochemistry, Mymensingh Medical College, Bangladesh from January 2021 to December 2021. Data was collected from Medicine Department of Mymensingh Medical College Hospital, Bangladesh. A total number of 120 subjects participated in this study. Out of them, 60 apparently normal healthy individuals were selected as Group I and another 60 diagnosed COPD patients were selected as Group II. The results were calculated and analyzed by using statistical package for social science (SPSS), windows package version 21.0. Serum magnesium was measured by photoelectric colorimetric method using the test kit and serum uric acid was measured by enzymatic colorimetric method using the test kit. Data were expressed in mean±SD and statistical significance of different parameter was done by Pearson's correlation co-efficient test. The mean±SD values of serum magnesium were 2.15±0.29mg/dl and 1.54±0.30mg/dl in Group I and Group II respectively. Result was statistically highly significant (p<0.001). The mean±SD values of serum uric acid were 5.43±2.05mg/dl and 6.86±1.61mg/dl in Group I and Group II respectively. Result was statistically highly significant (p<0.001). Pearson's correlation coefficient test showed that there was significant (p=0.001) negative correlation (r= -0.415) found between serum magnesium and serum uric acid in study group. In this study, the result suggested that there was significant relation between COPD exacerbations and alteration of these biochemical parameters. So, by this study we recommended that routine evaluation of these parameters is important for prevention of exacerbations, reduction of morbidity and mortality in patients with COPD.


Assuntos
Doença Pulmonar Obstrutiva Crônica , Ácido Úrico , Humanos , Magnésio , Estudos Transversais , Estudos de Casos e Controles , Bangladesh
11.
Mymensingh Med J ; 32(4): 992-997, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37777891

RESUMO

A major global public health concern is the prevalence of diabetes mellitus, especially in developing countries like Bangladesh. While still battling communicable diseases, Bangladesh is already inundated with non-communicable diseases. Type 2 diabetes has been found in almost 90.0% of all instances of diabetes. The main risk factors for type 2 diabetes are an excessively caloric diet, advanced age, sedentary behavior and obesity. Along with preexisting risk factors, many micro-nutrients have been related to a rise in the incidence of diabetes. The study's objective was to measure and contrast the zinc levels in serum between individuals with type 2 diabetes mellitus and healthy controls. This cross-sectional study was conducted from July 2018 to June 2019 at the Mymensingh Medical College, Mymensingh, Bangladesh. Based on inclusion and exclusion criteria, the subjects were chosen using a purposeful (non-random) sample method. In total, 100 people participated in this study. They were divided into two groups: 50 individuals who had been diagnosed with type 2 diabetes mellitus were chosen as cases and 50 individuals who appeared to be in generally excellent health were chosen as controls. For the analytical aims of this investigation, serum zinc levels were examined. All values were expressed as the mean SD. The statistical analyses were carried out using the Windows program statistics package for social science (SPSS). The statistical significance of the difference between the case and control groups was evaluated using the Student's unpaired 't' test. A thorough research revealed that type 2 diabetes mellitus patients had significantly lower mean serum zinc levels than healthy controls (case group was 110.96±13.60 and control group 130.18±9.95µg/dl). Cross-sectional research was used in this study. The current study's findings showed that type 2 diabetes mellitus patients had dramatically changed serum zinc levels. The study's hypothesis was verified as a result.


Assuntos
Diabetes Mellitus Tipo 2 , Humanos , Estudos Transversais , Fatores de Risco , Obesidade , Bangladesh , Zinco
12.
Mymensingh Med J ; 32(3): 749-756, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37391969

RESUMO

This cross-sectional study was carried out in the Department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh, from January 2015 to June 2016 in collaboration with Department of Neurosurgery and Department of Pathology of same hospital, to assess MRI findings of common IMSCTs and to find out the validity of MRI in the diagnosis of spinal ependymoma and astrocytoma, thereby differentiating these two common intramedullary entities. For this purpose, 40 patients aged from 15 to 60 years, who were diagnosed or suspected cases of having intramedullary spinal cord tumours were enrolled. These patients underwent preoperative MRI for evaluation of the spinal cord tumours during the study period in department of Radiology and Imaging. Also, patients were diagnosed by MRI as having IMSCTs incidentally was included. All of them were followed by histopathological examination of the same lesions after surgery. Among these 40 patients after exclusion for valid reason 28 cases were included as study population. MR images were obtained on a 1.5 Tesla (Avanto Magnatom, Siemens) unit with a spine surface coil. MRI findings were compared with histopathology after surgery keeping histopathology as gold standard. Out of 28 clinically and MRI diagnosed IMSCTs cases, 19 cases of ependymoma, 8 cases of astrocytoma and one diagnosed as hemangioblastoma by MRI. The mean age was 34.11±9.55 years, ranging from 15 to 56 years for ependymoma, 26.88±8.08 years ranging from 16 to 44 years for astrocytoma. Highest incidence (47.4%) was in between 31 to 40 years for ependymoma, 50.0% were in between 21-30 for Astrocytoma. On MRI majority 12(63.2%) of the cord ependymomas and majority 5(62.5%) of astrocytomas were in cervical region. While considering axial location ependymomas are mostly 17(89.5%) central and astrocytomas 5(62.5%) are eccentric in location. It was observed that out of 19 cases of ependymoma more than half 10(52.6%) had elongated shape, 12(63.1%) had well defined margin. Associated syringohydromyelia was present in 16(84.2%) cases. On T1WI 11(57.9%) and 8(42.1%) cases were iso and hypo respectively. On T2WI 14(73.7%) cases were hyper intense. After Gd-DTPA in most cases, 13(68.4%) cases showed diffuse enhancement. Noticeable and sizeable solid component observed among 13(68.4%) of the cases. Hemorrhage with cap sign was found in more than one third 7(36.8%) cases. Out of 8 cases of astrocytomas 4(50.0%) had lobulated shape, ill-defined margin 5(62.5%). T1WI: Iso 5(62.5%), hypo 3(37.5%), T2WI: hyper 5(62.5%), After Gd-DTPA: focal and heterogenous enhancement 3(37.5%) and rim enhancement 4(50.0%). Component: mixed 4(50.0%), cystic 3(37.5%) and solid 1(12.5%). Hemorrhage without cap sign 2(25.0%), associated syringohydromyelia 1(12.5%). In the case of evaluation of intramedullary ependymoma sensitivity of MRI in the present series is 94.44%, specificity 80.0%, Positive predictive value (PPV) 89.5%, Negative predictive value (NPV) 88.9% and accuracy 89.28%. In case of MRI evaluation of intramedullary astrocytoma sensitivity of MRI in the present study is 85.71%, specificity 90.47%, PPV 75%, NPV 95% and accuracy 89.2%. Thus present study shows MRI is a sensitive and effective noninvasive imaging modality in diagnosing common intramedullary spinal cord tumours.


Assuntos
Astrocitoma , Ependimoma , Neoplasias da Medula Espinal , Neoplasias da Coluna Vertebral , Adulto , Humanos , Adulto Jovem , Astrocitoma/diagnóstico por imagem , Bangladesh , Estudos Transversais , Ependimoma/diagnóstico por imagem , Gadolínio DTPA , Imageamento por Ressonância Magnética , Neoplasias da Medula Espinal/diagnóstico por imagem , Adolescente , Pessoa de Meia-Idade
13.
Mymensingh Med J ; 32(3): 769-772, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37391972

RESUMO

Pregnancy is a physiological state. During pregnancy increased physiological changes may lead to many biochemical and anatomical alterations. The biochemical changes that seen in blood of the pregnant mother are exaggerated in various complications of pregnancy like preeclampsia. Preeclampsia is a dangerous complication that may leads to maternal and neonatal mortality. Globally it affects 3.0-5.0% of pregnant women. The study was done to analyze the changes in serum phosphorus level in pre-eclamsia compared with normal pregnancy. The study was cross sectional and was performed from July 2016 to June 2017 in the department of Biochemistry, Mymensingh Medical College, Mymensingh, Bangladesh. Total 100 subjects were included in this study. Among them 50 preeclamptic patients were taken as case and another 50 normal pregnant women were taken as control. Statistical difference was calculated by Student's unpaired 't' test. Biochemical values were expressed as mean±SD. The mean±SD of serum phosphorus levels in case and control group were 2.81±0.79 and 3.40±0.87mg/dl respectively. The difference in mean±SD of serum phosphorus were highly significant (p<0.001) when compared between case and control.


Assuntos
Pré-Eclâmpsia , Gravidez , Recém-Nascido , Humanos , Feminino , Estudos Transversais , Bangladesh , Mortalidade Infantil , Fósforo
14.
Public Health Action ; 13(2): 34-36, 2023 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-37359061

RESUMO

Undernutrition is the leading risk factor for TB infection and death in India. We undertook a micro-costing analysis of a nutritional intervention for household contacts of people living with TB in Puducherry, India. We found that the total 6-month food cost for a family of four was USD4/day. We also identified several alternative regimens and cost-lowering strategies to encourage wider adoption of nutritional supplementation as a public health tool.


La sous-nutrition est le principal facteur de risque d'infection et de décès dus à la TB en Inde. Nous avons entrepris une analyse de micro-coût d'une intervention nutritionnelle destinée aux contacts familiaux des personnes atteintes de la TB à Puducherry, en Inde. Nous avons constaté que le coût total de la nourriture pendant 6 mois pour une famille de quatre personnes était de 4 USD par jour. Nous avons également identifié plusieurs régimes alternatifs et stratégies de réduction des coûts pour encourager une adoption plus large de la supplémentation nutritionnelle en tant qu'outil de santé publique.

15.
Environ Toxicol Pharmacol ; 100: 104153, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37220852

RESUMO

This study is a baseline data on the presence of MPs from the gastro-intestinal tracts (GITs) in Coryphaena hippurus Linnaeus, from eastern Baja California Sur, México. 878 MPs items (in %) of fibers (29%), fragments (68%) and films (1.3%) were detected from 51 GITs of Coryphaena hippurus. Transparent, white, blue and black were the prevalent colours. Morphological features observed through SEM analysis, the presence of heavily weathered MPs is due to the mechanical, microbiological and chemical weathering process. PP (29%), Nylon (29%), PS (17%), PE (11%), PET (6%) and HDPE (8%) presence indicates their source from regional anthropogenic stress. Trophic level transition is enforced by polymer derivative, permitting the sinking behavior of MPs and increased ingestion probability. Fishes were classified as slim despite their higher feeding capabilities and ingested MPs indicates a relationship with environmental contaminants. Current study emphasizes the health risk linked to biological aspects of MPs ingestion.


Assuntos
Perciformes , Poluentes Químicos da Água , Animais , Microplásticos , Plásticos/análise , México , Poluentes Químicos da Água/toxicidade , Poluentes Químicos da Água/análise , Peixes , Monitoramento Ambiental
16.
J Robot Surg ; 17(5): 2001-2008, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37106313

RESUMO

Although retroperitoneal surgery has demonstrated a better quality of recovery compared to transperitoneal routes, Retroperitoneal Robot Assisted Partial Nephrectomy (RRAPN) remains proportionally infrequent. As the boundaries of what is achievable robotically continue to be pushed, we present our experience at a high-volume tertiary referral centre that specialises in retroperitoneal surgery, exploring its feasibility as standard of care in the management of small renal masses. A prospective database of 784 RAPNs (2009-2020) was reviewed and 721 RRAPNs (92%) were performed at our centre. In our practice, we utilise a four-port approach to RRAPN. Patient, tumour and operative characteristics were assessed and both oncological outcomes and trifecta and pentafecta achievements were determined. Pentafecta was defined as achieving trifecta (negative surgical margin, no post-operative complications and WIT of < 25 min) plus over 90% estimated GFR preservation and no CKD stage upgrading at 1 year. Multivariate analysis was conducted to predict peri-operative factors which may prevent achieving a trifecta/pentafecta outcome. From 784 cases, 112 RAPNs were performed for imperative reasons, whilst the remainder were elective. Mean BMI ± s.d amongst our cohort was 28.6 ± 5.7. Mean tumour size was 3.1 cm (range 0.8-10.5 cm) and 47% of cases were stratified as intermediate/high risk using R.E.N.A.L nephrometry scoring. Forty-six patients had lesions in a hilar location, and 31% were anterior. Median blood loss was 30mls, with an open conversion rate of 1% and transfusion rate of 1.6%. Median warm ischaemic time (WIT) was 21 min, positive surgical margins were found in 4% and our post-operative Clavien 3/ > complication rate was 2.6%. We had a 1-day median length of stay with a 30 day readmission rate of 2%. Of 631 patients (80%) with a definitive histological diagnosis of cancer, 23% had T1b/ > disease. Over a mean 15 month follow-up period (range 1-125 months), 2% of patients developed recurrences and our cohort demonstrated a 99% 5 year cancer specific survival. Trifecta was achieved in 67% of cases and pentafecta in 47%. Age (p = 0.05), operative time (p = 0.008), pT1b tumours (p = 0.03), R.E.N.A.L score and blood loss (p = 0.001) were found to statistically significantly influence achievement of trifecta. Pentafecta achievement was influenced by R.E.N.A.L score (p = 0.008), operative time (p = 0.001) and blood loss (p = 0.001). We demonstrate the retroperitoneal approach in RAPN is feasible and safe irrespective of lesion location and complexity. In the hands of high-volume centres that are skilled in the retroperitoneal approach the benefits of retroperitoneal surgery can be extended even to challenging cohorts of patients without compromising their oncological or functional outcomes.


Assuntos
Neoplasias Renais , Procedimentos Cirúrgicos Robóticos , Robótica , Humanos , Neoplasias Renais/patologia , Procedimentos Cirúrgicos Robóticos/métodos , Resultado do Tratamento , Estudos Retrospectivos , Nefrectomia , Margens de Excisão
17.
Sci Rep ; 13(1): 5949, 2023 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-37045888

RESUMO

Flow towards a rotating disk is of highly practical significance in numerous engineering applications such as Turbine disks, rotary type machine systems and many more. In light of this, the current work is an attempt to explore MHD oblique flow towards a rotating disk. Hydromagnetic effects in addition to heat transfer is taken into consideration. The flow governing Partial Differential Equations are altered to a system to coupled non-linear Ordinary Differential Equations through scaling group of transformations which afterwards are tackled using Shooting Algorithm. The impact of obliqueness parameter γ, rotation ratio parameter [Formula: see text] and magnetic field parameter M on 2-dimensional and 3-dimensional stream contours are presented. Location of the shear center varies with magnetic field parameter. Heat flow at the disk surface boosts with magnet field parameter M and rotation ratio parameter [Formula: see text].

19.
Environ Monit Assess ; 195(2): 279, 2023 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-36609939

RESUMO

Identifying suitable zones for surface water storage and groundwater recharge is needed to enhance irrigation water availability. This study was undertaken to map rainwater harvesting (RWH) potential zones using geospatial tools and analytic hierarchy process (AHP). The suitable locations for RWH were also mapped using the Boolean logic concept. The surface runoff is a vital factor to demarcate the appropriate zones for RWH. The curve number approach was used to estimate the surface runoff potential. The runoff coefficient (RC) map was generated based on rainfall and surface runoff depth. Weights have been allocated to selected themes of RC, drainage density, and slope. The themes were integrated using geographic information system (GIS) and AHP to demarcate the suitable zones for RWH. The derived RWH potential map was categorized into zones like "very good," "good," "moderate," "poor," and "very poor" with an aerial extent of 14.3%, 24.7%, 28.3%, 20.2%, and 12.6%, respectively. The area suitable for farm ponds was found to be about 9% (408 km2), 13% (329 km2), and 4% (244 km2) in Mirzapur, Chandauli, and Sonbhadra districts, respectively. Furthermore, 22, 15, and 21 locations were found suitable for check dams in Mirzapur, Chandauli, and Sonbhadra districts, respectively. At a large scale, effective planning of water management strategies based on multicriteria decision analysis and GIS offers increased availability of surface and groundwater resources and may help for enhancing the agricultural land use options. The higher resolution maps may be further utilized to plan RWH strategies at village level.


Assuntos
Sistemas de Informação Geográfica , Abastecimento de Água , Chuva , Monitoramento Ambiental , Água , Técnicas de Apoio para a Decisão
20.
Mymensingh Med J ; 32(1): 28-34, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36594296

RESUMO

Acute coronary syndrome is a growing public health concern. Diabetic patients are more vulnerable to develop acute coronary syndrome due to accelerated atherosclerosis. Acute coronary syndrome is common in diabetes mellitus and is a major cause of mortality and morbidity in these patients. Troponin-I is a biochemical marker for cardiac muscle injury. Elevated glycated hemoglobin (HbA1c) is also regarded as an independent risk factor for acute coronary syndrome in patients with diabetes mellitus.The aim of this study was to assess the relationship of HbA1c and Troponin-I level in patients with acute coronary syndrome. This cross-sectional study was conducted in the Department of Biochemistry, Dhaka Medical College, Dhaka, Bangladesh from July 2018 to June 2019. Total study subjects were ninety five of both gender selected from the admitted patients of the cardiology department of the National Institute of Cardiovascular Diseases (NICVD), Dhaka. Diagnosis of acute coronary syndrome was confirmed by cardiologist. Diagnosis of diabetes mellitus was confirmed by Random Blood Glucose (RBG) level. Study subjects were grouped, acute coronary syndrome with diabetes mellitus as Group A and acute coronary syndrome without diabetes mellitus as Group B. Baseline parameters was recorded in data collection sheet. HbA1c, Troponin-I level of all study subjects were analyzed and recorded. Mean age of the study subjects in Group A and Group B were 51.06 years and 51.66 years respectively. Male gender was predominant in both groups. Mean SBP and DBP were significantly higher in Group A than Group B. Mean HbA1c level of the study subjects in Group A was significantly higher than Group B (p=0.001). Mean Troponin-I level in Group A was also significantly higher than Group B (p=0.023). HbA1c and Troponin-I levels were positively correlated in Group A (r=0.471, p=0.001). The present study demonstrated significant positive correlation of HbA1c and Troponin-I level in diabetic patients with acute coronary syndrome.


Assuntos
Síndrome Coronariana Aguda , Diabetes Mellitus , Humanos , Masculino , Pessoa de Meia-Idade , Hemoglobinas Glicadas , Troponina I , Síndrome Coronariana Aguda/complicações , Síndrome Coronariana Aguda/diagnóstico , Glicemia , Estudos Transversais , Bangladesh/epidemiologia , Fatores de Risco , Biomarcadores
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