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1.
CNS Spectr ; : 1-3, 2023 Oct 20.
Article in English | MEDLINE | ID: mdl-37861078

ABSTRACT

Numerous studies have been conducted globally to assess the compliance level of newspapers with the World Health Organization's media guidelines for responsible suicide reporting. To identify and review such studies conducted in Muslim-majority countries between 2014 and 2022, we searched PubMed and Google Scholar databases. We identified 12 eligible studies from Pakistan (n = 4), Bangladesh (n = 2), Malaysia (n = 1), Indonesia (n = 1), Iraq (n = 1), Iran (n = 1), Nigeria (n = 1), and Egypt (n = 1). These studies indicated an overall lack of adherence to the guidelines. However, the level of nonadherence was particularly high in Pakistan. Effective suicide prevention programs may help in promoting responsible reporting of suicide.

2.
J Coll Physicians Surg Pak ; 32(12): 1544-1547, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36474372

ABSTRACT

OBJECTIVE: To assess the perspectives of the first year and second year MBBS students of College, regarding the effectiveness of flipped classroom learning as compared to the traditional mode of teaching. STUDY DESIGN: A descriptive study. PLACE AND DURATION OF STUDY: Shifa College of Medicine, Islamabad, Pakistan, from August to September 2021. METHODOLOGY: This descriptive study was conducted on all first and second year MBBS students in College after informed consent. A self-developed questionnaire formulated after a thorough literature search, with 16 questions was given. Quantitative data was collected after ethical approval and was analysed using SPSS version 22. Percentages and mean were calculated for descriptive analysis whereas qualitative data was analysed through thematic analysis Results: Out of the 156 responders, 61% students believed that flipped classroom buttressed a better understanding of study objectives, 24% stated that it didn't make much of a difference whereas 15% had a negative response in this respect. The majority (90%) reckoned that learning beforehand fostered better discussions and made the whole learning process much easier. Seventy-five percent believed that it has improved their grades. Although, some students did point out that sometimes meandering through various study sources consumed a lot of their time but overall they held a satisfactory opinion of flipped pedagogy (85%). CONCLUSION: The students enrolled in the study asserted the usage of flipped classrooms as a likeable and preferable teaching method in medical institutions. Not only it engaged students in active learning and helped them improve their grades but also enabled them to sharpen cognitive and presentation skills, which are the prime objects of undergraduate pedagogy. KEY WORDS: Flipped classroom, Medical education, Medical students, e-learning.


Subject(s)
Education, Medical , Humans , Universities , Problem-Based Learning , Pakistan
3.
J Coll Physicians Surg Pak ; 32(11): 1503-1505, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36377027

ABSTRACT

In Pakistan, women have outnumbered men in medicine and many women now choose to start a family earlier in their careers. A 24-question survey was electronically distributed over social media. Female postgraduate trainees and consultants who had experienced pregnancy and motherhood during their training were included. Questions were asked about their experiences of pregnancy, news breaking, attitudes of colleagues and supervisors, maternity leaves, and lactational issues. A total of 320 responses were received; Internal Medicine (19.1%), Gynaecology and Obstetrics (15.0%), Surgery 46 (14.4%), and Pediatrics (11.9%) were major specialities. One hundred and nineteen (37.2%) respondents feared they would be considered 'uncommitted" if the news of their pregnancy broke. Breastfeeding was important to 77.5% mothers, but only 40% of the mothers could breastfeed, and 86.2% reported that lactation facilities were inadequate. 50% mothers thought to strongly reconsider their speciality. Postgraduate training programs in Pakistan should be tailored to address the needs of trainee mothers. Key Words: Motherhood, Postgraduate training, Lactation, Pregnancy.


Subject(s)
Gynecology , Internship and Residency , Obstetrics , Humans , Child , Male , Female , Pregnancy , Pakistan , Obstetrics/education , Gynecology/education , Education, Medical, Graduate
4.
Front Cardiovasc Med ; 9: 996225, 2022.
Article in English | MEDLINE | ID: mdl-36312229

ABSTRACT

Objective: Rheumatic heart disease (RHD) is a major health problem in the world, particularly in developing countries. This study aimed to predict mitral regurgitation (MR) and mitral stenosis (MS) RHD among children with RHD. Methodology: Data was collected from the Pediatric Cardiology Department at Chaudhry Pervaiz Elahi Institute of Cardiology Multan, Pakistan from March to October 2019. A sample of 561 children aged 4-14 years, who were diagnosed with RHD of either MR or MS, were recruited from the hospital's outpatient department. The presence of multivariate outliers was detected, and different machine learning methods, including subset logistic regression, subset logistic regression after deletion, stepwise winsorized logistic regression, robust logistic regression, subset deep neural network, and random forest models were compared using the area under receiver operating characteristics (ROC) curve, sensitivity, and specificity. Parsimony was also considered in model selection. Results: Out of 561 patients in this study, 75.94% had RHD MR and 24.06% had RHD MS. The average age of study participants was 9.19 ± 2.45 years and of them 55.43% were male. Among the male participants, 58.6 and 45.2% had MR and MS, respectively; and among female participants, those were 70.4 and 29.6%, respectively. Subset logistic regression after deletion appeared as competitive with a discrimination power of 90.1% [95% CI 0.818-0.983]. The sensitivity and specificity of this model were 85.1 and 70.6%. Conclusion: The best predictive model was subset logistic regression after deletion. The predicted method will be used in the decision-making process, which helps early diagnosis of the disease and leads to prevention. The study findings provide the proper guideline for earlier diagnosis of the RHD MR and MS cases among children with RHD in Pakistan.

5.
Toxics ; 10(10)2022 Sep 26.
Article in English | MEDLINE | ID: mdl-36287844

ABSTRACT

The present study aimed to determine the degree of changes in the histological architecture of the liver, gills, kidneys, and muscles of fish Oreochromis niloticus collected from different polluted river sites. Fish samples collected from the Faisalabad Fish Hatchery and upstream of Chakbandi drain acted as a control. Necrosis, hemorrhage, and epithelial hyperplasia were observed in the gills of fish inhabiting the river downstream of the Chakbandi drain entrance. Liver tissues were found to be affected by vacuolated cytoplasm, bile duct proliferation, melanomacrophages, and necrosis. In kidney tissues, shrinkage of the renal cortex, necrosis, and destructive renal tubules were observed. Histopathology of muscles indicates the presence of hypertrophy and swollen myofibers. In contrast, upstream specimens of fish exhibited mild tissue alterations. Histopathology of gills tissue showed vacuolization. Liver tissues indicated the presence of hypertrophy and more frequent Kupffer cells than usual. The vacuolation was also observed in kidney tissues. Muscle tissues expressed splitting of muscle fibres and degeneration in muscle bundles. However, sections of tissues collected from farmed fish have normal morphology and no anomalies. The histopathological assessment indicated various cellular, biochemical, and histological changes in response to the contamination in the vicinity of the fish.

6.
J Ayub Med Coll Abbottabad ; 34(1): 200-202, 2022.
Article in English | MEDLINE | ID: mdl-35466654

ABSTRACT

BACKGROUND: Antiphospholipid syndrome (APS) is an acquired prothrombic state with recurring thromboembolic and obstetric complications in the presence of antiphospholipid antibodies. Isolated skin manifestation especially symmetrical peripheral gangrene (SPG) in postpartum phase is reported rarely. To highlight this unusual presentation of APS with SPG we present a case of young female who developed SPG on her third postpartum day. Postpartum period runs a high risk of sepsis but development of such extensive and rapid ischemic changes in APS is seen uncommonly.


Subject(s)
Antiphospholipid Syndrome , Sepsis , Antiphospholipid Syndrome/complications , Antiphospholipid Syndrome/diagnosis , Female , Gangrene/complications , Humans , Postpartum Period , Pregnancy , Sepsis/complications
7.
Homeopathy ; 111(1): 22-30, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34492725

ABSTRACT

INTRODUCTION: Plantar fasciitis (PF) is a chronic degenerative condition causing marked thickening and fibrosis of the plantar fascia, and collagen necrosis, chondroid metaplasia and calcification. There is little convincing evidence in support of various approaches, including homeopathy, for treating PF. This study was undertaken to examine the efficacy of individualized homeopathic medicines (IHMs) compared with placebo in the treatment of PF. METHODS: A double-blind, randomized, placebo-controlled trial was conducted at the outpatient departments of Mahesh Bhattacharyya Homoeopathic Medical College and Hospital, West Bengal, India. Patients were randomized to receive either IHMs or identical-looking placebo in the mutual context of conservative non-medicinal management. The Foot Function Index (FFI) questionnaire, as an outcome measure, was administered at baseline, and every month, up to 3 months. Group differences (unpaired t-tests) and effect sizes (Cohen's d) were calculated on an intention-to-treat sample. The sample was analyzed statistically after adjusting for baseline differences. RESULTS: The target sample size was 128; however, only 75 could be enrolled (IHMs: 37; Placebo: 38). Attrition rate was 9.3% (IHMs: 4, Placebo: 3). Differences between groups in total FFI% score favored IHMs against placebo at all the time points, with large effect sizes: month 1 (mean difference, -10.0; 95% confidence interval [CI], -15.7 to -4.2; p = 0.001; d = 0.8); month 2 (mean difference, -14.3; 95% CI, -20.4 to -8.2; p <0.001; d = 1.1); and month 3 (mean difference, -23.3; 95% CI, -30.5 to -16.2; p <0.001; d = 1.5). Similar significant results were also observed on three FFI sub-scales (pain%, disability%, and activity limitation%). Natrum muriaticum (n = 14; 18.7%) and Rhus toxicodendron and Ruta graveolens (n = 11 each; 14.7%) were the most frequently prescribed medicines. No harms, serious adverse events, or intercurrent illnesses were recorded in either of the groups. CONCLUSION: IHMs acted significantly better than placebo in the treatment of PF; however, the trial being underpowered, the results should be interpreted as preliminary only. Independent replications are warranted. TRIAL REGISTRATION: CTRI/2018/10/016014.


Subject(s)
Fasciitis, Plantar , Homeopathy , Materia Medica , Double-Blind Method , Fasciitis, Plantar/drug therapy , Humans , Materia Medica/therapeutic use , Treatment Outcome
8.
Clin Exp Pharmacol Physiol ; 48(12): 1653-1661, 2021 12.
Article in English | MEDLINE | ID: mdl-34386985

ABSTRACT

Hepatitis C Virus (HCV) is a viral infection posing a severe global threat that left untreated progresses to end-stage liver disease, including cirrhosis and hepatocellular carcinoma (HCC). Moreover, no prophylactic approach exists so far enabling its prevention. The NS5B polymerase holds special significance as the target of intervention against HCV infection. The current study kindles benzothiazine derivatives against HCV NS5B polymerase through in silico and experimental approaches. Following docking, the compound 2-(3,4-dimethyl-5,5-dioxidobenzo[e]pyrazolo[4,3-c][1,2]thiazin-2(4H)-yl)-N-(2-fluorobenzyl)acetamide was revealed to form effective binding interaction in the proposed site of HCV NS5B with a score of -10 kcal/mol and subsequently was deciphered through molecular dynamics (MD) simulation study which indicated interaction of residues TYR_382, VAL_381 and HIS_467 through hydrophobic interaction and two residues such as GLU_202 and LYS_209 contributed in the formation of water bridges. The subsequent in silico pharmacological analysis revealed its safe drug profile. The cytotoxicity activity of compound 6c indicated to be non-toxic in HepG2 cells at concentration ranges from 0.001-1.0 µmol/L with >80% cell viability and diminished expression of the HCV NS5B to 98% at the dose of 1.0 µmol/L and 90% at 0.5µmol/L. Thus the hit compound 6c might be a potent NS5B polymerase inhibitor required to be validated further through in vivo and preclinical studies.


Subject(s)
Hepacivirus
9.
Ann Med Surg (Lond) ; 62: 298-301, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33552488

ABSTRACT

BACKGROUND: Hemangiopericytomas (HPC) are vascular tumors and can be found at any place where vessels are present. These were previously known as 'extrapleural Solitary Fibrous Tumour'. These tumors may reoccur and metastasize after surgical excision. We present herein a HPC of the greater omentum, diagnosed as left inguinal hernia preoperatively. CASE PRESENTATION: A 61-year-old male, presented with a huge painless mass in his left inguinoscrotal region secondary to weigh-lifting associated with malaise and vague abdominal pain. A well-defined, non-tender, and firm mass was found at the left lower abdomen extending to the left inguinoscrotal region. Based on the examination, a diagnosis of indirect inguinal hernia was made. Abdominal ultrasound showed a heterogeneous, hyporeflective, and vascularized mass. Contrast-enhanced computed tomography scan identified a localized, extraperitoneal, heterogeneously hypodense, well-defined, and lobulated mass, with marked contrast enhancement. On exploration, an encapsulated large mass originating from the omentum with enormously dilated blood vessels was excised. On histopathology, a neoplastic lesion, composed of spindle-shaped cells and moderate cytoplasm was identified. The blood vessels appeared thin-walled with a staghorn appearance in hemangiopericytic pattern. Omental sections showed fibro adipose tissue with dilated lymphatics and thick-walled blood vessels. Features were consistent with a malignant HPC of 20 × 14 × 10 cm. CONCLUSION: We present an unusual presentation of primary omental malignant HPC as an inguinal hernia, treated by complete surgical resection. These tumors are rare therefore, timely diagnosis is important for proper evaluation, diagnosis, and treatment. It also requires long-term follow up for better survival.

11.
J Pak Med Assoc ; 70(12(B)): 2390-2393, 2020 Dec.
Article in English | MEDLINE | ID: mdl-33475549

ABSTRACT

OBJECTIVE: This study was aimed to assess maternal vitamin D status during pregnancy and determine the association between maternal 25(OH) D levels with risk of preeclampsia (PE). METHODS: A cross-sectional study was conducted with 172 pregnant women recruited from JPMC between January and December 2017 who were divided as normotensive (n=80) and pre eclamptic (n=92) groups. Blood pressure was recorded at 20 and 32 weeks of gestation. Five ml of blood sample was collected at 20 weeks of gestation to assess the vitamin D levels by commercially available ELISA assay. RESULTS: PE group had a significantly higher systolic (p<0.001) and diastolic (p<0.001) blood pressure at 20 weeks of gestation. Vitamin D levels were reported to be significantly lower (p<0.001) in the PE group (17.97±9.38 ng/ml) as compared to normotensive group (42.18±25.17 ng/ml). A strong negative correlation of Vitamin D levels with systolic blood pressure (r=-0.428; p<0.001) and diastolic blood pressure (r= 0.375; p<0.001) was found. CONCLUSIONS: This study found a strong relationship between low vitamin D levels and pre-eclamptic manifestation.


Subject(s)
Pre-Eclampsia , Vitamin D Deficiency , Case-Control Studies , Cross-Sectional Studies , Female , Humans , Pre-Eclampsia/epidemiology , Pregnancy , Vitamin D , Vitamin D Deficiency/complications , Vitamin D Deficiency/epidemiology , Vitamins
12.
Cureus ; 11(10): e5832, 2019 Oct 03.
Article in English | MEDLINE | ID: mdl-31754567

ABSTRACT

Objective To compare the effect of abdominal binder versus no binder after major abdominal surgery and cesarean section on various post-operative recovery parameters. Materials and methods This is a randomized controlled trial conducted at the Department of General Surgery and Obstetrics, Civil Hospital, Karachi, Pakistan. All those patients aged ≥18 years having abdominal surgery including elective and emergency abdominal surgery and cesarean sections with American Society of Anesthesiologists Class I-III were included in the study. Randomization was done using the sealed envelope method by the principal investigator. The intervention group wore an abdominal binder postoperatively while the control group did not use it. Mobilization and the pain status of both groups were evaluated on the first, fourth, and seventh days after surgery. Results Primary outcome variables were mobility, assessed via 6-minute walk test (6MWT) and postoperative pain, evaluated via visual analogue scale. There was no statistically significant difference in the 6MWT distance before (p = 0.278) and on postoperative day one of the surgery (p = 0.0762). However, the difference was significant on fourth (p < 0.001) and seventh day (p value < 0.001). With regards to the pain status, patients in the binder group reported significantly less postoperative pain on first, fourth, and seventh (p value < 0.001) day compared to the non-binder group. Conclusion The use of abdominal binder postoperatively significantly reduced pain and improved mobility in both obstetric and surgery patients.

14.
World J Diabetes ; 10(7): 396-402, 2019 Jul 15.
Article in English | MEDLINE | ID: mdl-31363386

ABSTRACT

BACKGROUND: Women with gestational diabetes mellitus have an increased risk of developing gestational hypertension, which can increase fetal and neonatal morbidity and mortality. In the past decade, single nucleotide polymorphisms in several genes have been identified as risk factors for development of gestational hypertension. The epidermal growth factor receptor activates tyrosine kinase mediated blood vessels contractility; and inflammatory cascades. Abnormalities in these mechanism are known to contribute towards hypertension. It is thus plausible that polymorphisms in the epidermal growth factor receptor gene would be associated with the development of hypertension in women with gestational diabetes. AIM: To determine whether the epidermal growth factor receptor rs17337023 SNP is associated with the occurrence of hypertension in gestational diabetic women. METHODS: This pilot case-control study was conducted at two tertiary care hospitals in Karachi, from January 2017-August 2018. Two hundred and two women at 28 week of gestation with gestational diabetes were recruited and classified into normotensive (n = 80) and hypertensive (n = 122) groups. Their blood samples were genotyped for epidermal growth factor receptor polymorphism rs17337023 using tetra-ARMS polymerase chain reaction. Descriptive analysis was applied on baseline data. Polymorphism data was analyzed for genotype and allele frequency determination using chi-squared statistics. In all cases, a P value of < 0.05 was considered significant. RESULTS: Subjects were age-matched and thus no difference was observed in relation to age of the study subjects (P >0.05). Body fat percentage was significantly higher in hypertensive females as compared to normotensive subjects (35.138 ± 4.29 Case vs 25.01 ± 8.28 Control; P < 0.05). Similarly, systolic and diastolic blood pressures among groups were significantly higher in hypertensive group than the normotensive group (P < 0.05). Overall epidermal growth factor receptor rs17337023 polymorphism genotype frequency was similar in both groups, with the heterozygous AT genotype (56 in Case vs 48 in Control; P = 0. 079) showing predominance in both groups. Furthermore, the odds ratio for A allele was 1.282 (P = 0.219) and for T allele was 0.780 (P = 0.221) in this study. CONCLUSION: This pilot study indicates that polymorphisms in rs17337023 may not be involved in the pathophysiology of gestational hypertension in gestational diabetes via inflammatory cascade mechanism. Further large-scale studies should explore polymorphism in epidermal growth factor receptor and other genes in this regard.

15.
Pak J Med Sci ; 35(4): 992-996, 2019.
Article in English | MEDLINE | ID: mdl-31372130

ABSTRACT

BACKGROUND & OBJECTIVE: Kidney Injury Molecule-1 (KIM-1) is a peptide whose release into circulation is specific to tubular injury. This study aimed to estimate levels of kidney injury molecule-1 in diabetic patients with and without kidney disease. And evaluate the role of KIM-1 as an early screening marker of progressive kidney injury. METHODS: This follow-up study included n=85 subjects from the diabetic clinic of Jinnah Post Graduate Medical Center (JPMC) in collaboration with Aga Khan University from November 2016 till September 2017. They were divided as: i) Group A1 (n=30) participants with diabetes for <5 years without microalbuminuria ii) Group A2 (n= 30) subjects with diabetes for 6-10 years with microalbuminuria; iii) Group B (n=25) subjects as healthy control group. All study participants were followed for 6 months and their blood glucose, urea, creatinine, electrolytes, albuminuria and serum KIM-1 were assayed. RESULTS: High KIM-1 at baseline was present in group A2 patients as compared to controls and group A1 (p<0.001). Higher levels were seen after six months in group A1 along with the presence of micro albuminuria (p<0.001) suggesting kidney damage. Moderate positive association were seen for KIM1 with creatinine levels (r=0.530; p<0.001), and HbA1c (r=0.576; p<0.001) in all patients. While a strong positive association was seen for blood urea nitrogen as a marker for kidney function both at baseline (r= 0.728; p=0.000) and follow up (r=0.747; p=0.001). Multiple logistic regression controlling for age showed that KIM1 was independently associated with BUN (r=0.727; p<0.001), creatinine (r=0.510; p<0.001) and HbA1c (r=0.401; p=0.008) in all groups. CONCLUSION: Rising KIM-1 levels with progressive kidney damage with or without derangement of kidney function is reported in this study. This finding may pave a way towards identifying KIM1 as a prognostic marker for kidney injury.

16.
Taiwan J Obstet Gynecol ; 58(2): 188-191, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30910136

ABSTRACT

OBJECTIVE: The aim of the study was to explore the association of serum AMH and Renalase with the risk of preeclampsia thereby assessing them as screening tools, reducing the risk of gravid consequences of preeclampsia. MATERIALS AND METHODS: This cross-sectional study recruited n = 95 pregnant women between 14 and 32 gestational weeks. They were categorized as a) women with gestational hypertension (n = 45); b) women with pre-eclampsia (n = 20) and c) normotensive pregnant women (n = 30) according to the ACOG criteria. Anthropometrics data and blood and urine samples were collected. AMH and Renalase levels were measured by ELISA assay. RESULTS: The mean age of study cohort was 27.3 ± 6.2 year and weight was 65.1 ± 14.1 kg. Blood pressures were significantly higher in pre-eclamptic patients versus both the gestational hypertensive females and controls (p < 0.05). AMH was found to be significantly higher in controls but no difference was observed between gestational hypertensive and pre-eclamptic patients. No difference was seen for serum Renalase among the three groups (p > 0.05). AMH showed a negative weak correlation with diastolic blood pressure (r = -0.272; p = 0.008) that remained significant even after adjustment (r = -0.236; p = 0.023) whereas Renalase did not show any difference (r = -0.051; p > 0.05). Females with low levels of AMH were 1.07 times at risk of developing hypertension even after adjustment for age and BMI (p < 0.05). CONCLUSION: Low AMH levels may lead to hypertension in pregnancy suggesting a role in detecting vascular diseases as well as its effect on ovarian aging. However, further research is required to establish a causal relationship.


Subject(s)
Anti-Mullerian Hormone/blood , Monoamine Oxidase/blood , Pre-Eclampsia/blood , Adult , Biomarkers/blood , Blood Pressure , Case-Control Studies , Cross-Sectional Studies , Enzyme-Linked Immunosorbent Assay , Female , Gestational Age , Humans , Pre-Eclampsia/diagnosis , Pregnancy , Young Adult
17.
Eur J Obstet Gynecol Reprod Biol ; 234: 165-170, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30708268

ABSTRACT

INTRODUCTION: Soluble tumor necrosis factor-like weak inducer of apoptosis (sTWEAK) is linked to endothelial dysfunction; a key factor in pre-eclamptic pathogenesis. This study aimed to compare sTWEAK levels during pregnancy to assess for its prognostic ability. MATERIALS AND METHODS: Sixty three high risk pregnant women were followed up from 12 weeks of gestation till term. Serum levels of sTWEAK and platelet derived growth factor (PlGF), blood pressure, serum glucose, uric acid, urea/creatinine and liver function tests were measured. Subjects were stratified according to the ACOG criteria as women who developed PE, or PIH or remained normotensive at term. A negative control group of normotensive healthy pregnant women (n = 17) was also recruited for comparison. RESULTS: Baseline sTWEAK levels were lower (4.03 ± 0.37 ng/dl) in HR cohort that developed PE and further reduced at term (1.93 ± 0.23 ng/dl) as compared to HR subjects who remained normotensive and negative control group (30.53 ± 0.79 ng/dl; p < 0.01). Likewise PlGF levels were significantly lower (74.22 ± 10.11 pg/ml) in HR cohort that developed PE (p = 0.013). At term 39.68% (n = 22) HR subjects with low sTWEAK developed PIH and 34.92% (n = 24) developed PE. In terms of high risk characteristics observed in the HR group; 73% of the subjects were multiparous, whereas 26.98% reported to have developed PE in previous pregnancies. CONCLUSION: sTWEAK levels at early pregnancy weeks were found to be low in high risk females who developed PE at follow up versus normotensive pregnant women. Baseline TWEAK might serve as an independent variable for prediction of pre-eclampsia; however longitudinal studies with larger sample size are required to ascertain the causal relation.


Subject(s)
Cytokine TWEAK/blood , Pre-Eclampsia/diagnosis , Pregnancy Trimester, Second/blood , Adult , Biomarkers/blood , Blood Glucose/analysis , Blood Pressure , Creatinine/blood , Female , Gestational Age , Humans , Liver Function Tests , Maternal Serum Screening Tests , Pregnancy , Prospective Studies , Uric Acid/blood
18.
Aquat Toxicol ; 196: 43-52, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29331520

ABSTRACT

In the present study, potential protective role of Vitamin C (l-ascorbic acid) was investigated in aquaria acclimated common carp (Cyprinus carpio) following exposure for 96 h to combined toxic doses of fipronil (FP) and buprofezin (BPFN) insecticides in combination (FP: 200 µg/L; 4.57 × 10-7 mol/L and BPFN: 50 mg/L; 1.64 × 10-4 mol/L). At end of 96 h exposure, fish were supplemented with low (25 mg/L) and high (50 mg/L) doses of Vitamin C, added once daily to aquaria water for continuous three weeks. Appropriate control groups were run in parallel. Fish behavior was monitored throughout for signs of toxicity. At completion of experiments, liver, kidney, brain and gills were excised for toxicity assessment and possible remediation by the Vitamin C through biochemical determination of reactive oxygen species (ROS), thiobarbituric acid reactive substances or TBARS, reduced glutathione (GSH) and total protein content, levels of catalase (CAT), superoxide dismutase (SOD) and peroxidase (POD), and the Comet assay. Hepatosomatic index (HSI), condition factor (CF), survival rate (SR), and combination index (CI) were also determined. Data were compared statistically at p < 0.05. Results showed significant behavioral and biochemical alterations, and DNA damage in the fish group exposed to FP and BPFN in combination. In fish groups supplemented with Vitamin C following FP and BPFN treatment, significant alleviation in tissue damage and toxic effects was represented by substantial decreases in ROS and TBARS production (p < 0.001), along with a concomitant significant increase in the survival rate, GSH and total protein content, HSI, CF, and activities of SOD, CAT and POD enzymes (p < 0.001). Mean tail length of comet and percent tail DNA decreased significantly (p < 0.001), which indicated amelioration of DNA damage. The study concludes that Vitamin C is an effective remedial treatment against FP and BPFN-induced damage in exposed fish.


Subject(s)
Ascorbic Acid/pharmacology , Carps/metabolism , DNA Damage/drug effects , Insecticides/toxicity , Water Pollutants, Chemical/toxicity , Animals , Behavior, Animal/drug effects , Brain/drug effects , Brain/metabolism , Catalase/metabolism , Comet Assay , Gills/drug effects , Gills/metabolism , Glutathione/metabolism , Kidney/drug effects , Kidney/metabolism , Liver/drug effects , Liver/metabolism , Peroxidases/metabolism , Pyrazoles/toxicity , Reactive Oxygen Species/metabolism , Superoxide Dismutase/metabolism , Thiadiazines/toxicity
19.
Aquat Toxicol ; 179: 103-14, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27595653

ABSTRACT

Use of pesticides or insecticides can be highly toxic to aquatic life forms due to leaching and agricultural runoff, rains or flood. Fipronil (FP) is a GABA receptor inhibitor, while buprofezin (BPFN) is an insect growth regulator. Presently, we exposed groups of aquaria acclimated carp fish (Cyprinus carpio) for 96h to sub-lethal concentrations of fipronil (400µgL(-1); 9.15×10(-7)molL(-1)) and buprofezin (BPFN, 100mgL(-1); 1.072×10(-6)molL(-1)) singly or in combination. The extent of damage was assessed at biochemical, hematological, molecular biological and histopathological level. Results obtained in treated fish were compared statistically with those of control non-treated fish and also among treatment groups. Significance level was p<0.05. Compared to control, serum total protein and globulin concentrations decreased significantly (p<0.0001) in fish treated with FP; while albumin concentration remained unaltered with all treatments. Glucose concentration decreased significantly (p<0.002) in fish treated with FP. In contrast, combined FP+BPFN treatment and BPFN treatment caused insignificant elevation of glucose concentration. Hematological assessment demonstrated significant decrease in red blood cell and thrombocyte counts, hemoglobin concentration and hematocrit percent; while white blood cell count showed an increase in all treatment groups (p<0.0001). Blood smears from pesticide treated fish revealed aberrant erythrocyte morphologies which included necrosis, micronuclear formation and hyperchromatosis. DNA laddering assay carried out on whole blood demonstrated excessive smear formation in combined FP+BPFN and BPFN treatment groups but no smear formation was noticeable in FP treated fish. Compared to control, whole blood DNA content increased significantly in the combined FP+BPFN and BPFN treatment groups (p<0.001 and p<0.009). With all treatments histopathological changes observed in the gills were: epithelial uplifting and necrosis of lamellae, lamellar atrophy, disruption of cartilaginous core, fusion and disorganization of lamellae and telangiectasia. In liver these were: karyorrhexis, hepatocellular hypertrophy, nuclear hypertrophy, melanomacrophage aggregates and central vein contraction, while in the kidney: deterioration of glomerulus and dilatation of Bowman's space, dilatation of renal tubules, thyroidisation, altered tubular lumen, nuclear hypertrophy, cellular atrophy, and cellular necrosis were the outcome. Our study revealed that FP and BPFN produce highly toxic effects on fish when given in combination or singly. To our knowledge, this is the first report on toxicity caused by FP and BPFN in single and combined state.


Subject(s)
Carps/metabolism , DNA Damage/drug effects , Insecticides/toxicity , Pyrazoles/toxicity , Thiadiazines/toxicity , Water Pollutants, Chemical/toxicity , Animals , Blood Cell Count , Blood Glucose/analysis , Carps/genetics , Erythrocytes/cytology , Erythrocytes/drug effects , Gills/drug effects , Gills/metabolism , Gills/pathology , Hematocrit , Hemoglobins/metabolism , Insecticides/chemistry , Kidney/drug effects , Kidney/metabolism , Kidney/pathology , Liver/drug effects , Liver/metabolism , Liver/pathology , Water Pollutants, Chemical/chemistry
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