Chemical sensor thin film-based carbon quantum dots (CQDs) for the detection of heavy metal count in various water matrices.

Rising pollution of heavy metals is one of the greatest concerns, especially in water resources globally and has led to significant adverse effects to human health. To uplift the status of human health, detection of heavy metals is of key importance. This study establishes the ability of carbon quantum dot (CQD)-based thin films for the detection of total heavy metal counts based on a fluorescence-based mechanism in various water resources using a fiber optic spectrometer (FOS) device. CQDs and CQD thin films were characterized using various techniques, such as X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), X-ray diffraction (XRD), and confocal laser scanning microscopy (CLSM), and the sensing capability was evaluated for the detection of heavy metals using an optical fiber system. The analytical parameters of the CQD-based thin film were compared with the estimation carried out using a micro plasma-atomic emission spectroscopy (MP-AES) method. The sensing performances of CQD thin films indicate that they are able to detect five heavy metals individually (lead, nickel, manganese, cobalt and chromium) in combination with a response time of 1 minute. The CQD thin films were able to detect heavy metals with a detection limit of 0.006-0.019 ppm for the analyzed heavy metals with a linear range of estimation analyzed as 0-100 µM. The accuracy of the estimation of all five heavy metals when spiked in various real water samples lies in the range of 100-103%. The result of the study clearly indicates that CQD thin films associated with a fiber optic device have the potential to play a role in point-of-care devices for total heavy metal count detection in complex matrices of water.

Recombinant Organophosphorus acid anhydrolase (OPAA) enzyme-carbon quantum dot (CQDs)-immobilized thin film biosensors for the specific detection of Ethyl Paraoxon and Methyl Parathion in water resources.

Organophosphates pesticide (OP) toxicity through water resources is a large concern globally among all the emerging pollutants. Detection of OPs is a challenge which needs to be addressed considering the hazardous effects on the health of human beings. In the current research thin film biosensors of recombinant, Organophosphorus acid anhydrolase (OPAA) enzyme along with carbon quantum dots (CQDs) immobilized in thin films were developed. OPAA-CQDs thin film biosensors were used for the specific detection of two OPs Ethyl Paraoxon (EP) and Methyl Parathion (MP) in river water and household water supply. Recombinant OPAA enzyme was expressed in E. Coli, purified and immobilized on the CQD containing chitosan thin films. The CQDs used for this purpose were developed by a one-pot hydrothermal method from phthalic acid and Tri ethylene diamine. The properties of CQDs, OPAA and thin films were characterized using techniques like XPS, TEM, XRD, enzyme activity and CLSM measurements. Biosensing studies of EP and MP were performed by taking fluorescence measurements using a fiber optic spectrometer. The analytical parameters of biosensing were compared against an estimation carried out using the HPLC method. The biosensing performance indicates that the OPAA-CQDs thin film-based biosensors were able to detect both EP and MP in a range of 0-100 µM having a detection limit of 0.18 ppm/0.69 ppm for EP/MP, respectively with a response time of 5 min. The accuracy of estimation of EP/MP when spiked in water resources lie in the range of ∼100-102% which clearly indicates the OPAA-CQD based thin film biosensors can function as a point-of-use method for the detection of OP pesticides in complex water resources.

Fluorescent fiber-optic device sensor based on carbon quantum dot (CQD) thin films for dye detection in water resources.

Industrialization, especially in textile industries, has led to increased use of dyes and pigments to impart colours to fabrics. Textile dyes are one of the chief emerging pollutants of water resources as industrial effluents. In the current research, we report the development and utilization of pH-sensitive carbon quantum dots (CQDs) immobilized in polymer thin films acting as sensors for textile dye detection. The CQDs and CQD-containing polymer films were characterized by various techniques like XRD, TEM, XPS, and CLSM. The synthesized CQD thin films possess a unique pH-sensitive property that can be used to detect various model acidic and basic dyes that are important components of industrial effluents from textile dyes. The detection capability of the sensor films was evaluated by spiking dyes in various water matrices, like household tap water and river water. The results indicate that pH-sensitive CQD thin film was able to detect three acidic dyes, namely methyl red, methyl orange, and bromocresol green, and one basic dye, methylene blue, in a linear range of 0-100 µM with a response time of 1 minute. The CQD thin-film sensors have a limit of detection of 26.4 ppb, 214.5 ppb, 46.2 ppb, and 29.7 ppb for methyl red, methyl orange, bromocresol green and methylene blue, respectively. The accuracy of detection performed by spiking studies in water resources indicated an ∼100% recovery value in all tested acidic and basic dyes. The sensor films were compared for analytical parameters using UV-visible-fluorescence spectroscopy and HPLC.

Evaluation of phthalic acid tri-ethylene diamine (TED) and folic acid-based carbon quantum dots for the detection of heavy metals in water resources using fibre-optic instrumentation.

Heavy metal pollution and toxicity from water resources have remained a great concern for the entire population. This research demonstrates the capability of carbon quantum dots (CQDs) for fluorescence-based heavy metal detection in different water resources using a fibre-optic spectrometer device. Two different types of CQDs phthalic acid and triethylenediamine (PT CQDs) and Folic acid (FCQDs) were synthesized using microwave irradiation and hydrothermal method, respectively. CQDs were characterized using several techniques such as TEM, EDX, XPS and FTIR. PTCQD and FCQDs both were tested for sensing capability in water reservoirs like household and river water. The results indicate that both CQDs were able to detect all six heavy metal ions (Pb2+, Co2+, Mn3+, Hg2+, Ni2+, Cr3+) tested in the study in the range of 0-100 µM. It was found that FCQDs show a three-fold higher sensitivity and greater resolution than PTCQDs for all the heavy metals samples. The CQDs' sensing capability shows that they can achieve a limit of detection in the range of 0.15-3 µM along with 100% accuracy in terms of recovery with minimal error, these results indicate that both CQDs have a tremendous potential to be used as a sensor for the detection of heavy metals even in complex water matrices. FCQDs show more sensitivity for all metals compared to PTCQDs and used in future as a sensing tool for heavy metal detection with better sensitivity and accuracy with less response time.

Insights in detection and analysis of organophosphates using organophosphorus acid anhydrolases (OPAA) enzyme-based biosensors.

The human population is dependent on agriculture for its food requirements and survival. Several insecticides and pesticides have found their use for improvements in agricultural yields. Organophosphates (OP) are one of the many compounds used as insecticides and pesticides. OPs have also been used to develop G and V-series chemicals which act as highly toxic nerve agents that can severely influence the normal function of the nervous system in all living beings. Thus, OP compounds utilized as insecticides/pesticides and nerve agents are hazardous to the environment, lethal for humans and other non-target animals. To avoid their toxicity, approaches to detect and neutralize them have become essential. A variety of analytical procedures such as electrochemical processes and chromatography methods, namely liquid and gas chromatography, have been employed to detect OPs. Though these techniques are sensitive and highly accurate they suffer from drawbacks, for instance: their bulky nature and expensive instrumentation, the difficulty of operation, long detection times, and they can yield unpredictable results with variable sample complexities. With the advent of several types of biosensors, the assay of OP compounds has become simpler, faster, cost-effective with improved sensitivity, and provides the capability for onsite detection. OP biosensor assays typically utilize several enzymes with the capability to hydrolyze/degrade OP compounds, such as organophosphate hydrolase (OPH) and organophosphate acid hydrolase (OPAA). This review focuses on discussing various aspects of OPAA as biological recognition unit in terms of its: structure, properties, activity enhancement methods, and utilization for developing OPAA-based biosensing technologies for insecticides, pesticides, and nerve agents.

Erratum to "Difficult to Treat Recurrent Pyogenic Cholangitis with Portal Pylephlebitis in the Setting of Idiopathic CD4+ Lymphocytopaenia" [J Clin Exp Hepatol 9 (2019) 749-752].

[This corrects the article DOI: 10.1016/j.jceh.2019.03.007.].

Carvedilol Combined With Ivabradine Improves Left Ventricular Diastolic Dysfunction, Clinical Progression, and Survival in Cirrhosis.

BACKGROUND: Left ventricular diastolic dysfunction (LVDD) refers to impaired cardiac diastolic relaxation and may be improved by targeted heart rate reduction (THR). The authors evaluated whether a combination of carvedilol and ivabradine, an If channel blocker that reduces heart rate without affecting blood pressure, could improve LVDD and outcomes in cirrhosis. PATIENTS AND METHODS: THR was defined as heart rate reduction to 55 to 65 beats per minute. Of 260 patients with cirrhosis, 189 (72%) with LVDD were randomized to THR [group (Gr.)A; n=94; carvedilol±ivabradine)] or standard care (Gr.B; n=95; no ß-blockers) and followed for 12 months. RESULTS: In Gr.A, THR was achieved at 4 weeks in 88 (93%) patients (responders, R): 48 (61.5%) with carvedilol alone and 40 (86.9%) of 46 patients with additional ivabradine. In Gr.A, LVDD reversed in 16 (20.5%) and improved from grade 2 to 1 in 34 (35.4%)], whereas in Gr.B, it progressed from grade 1 to 2 in 10 (10.5%) patients. At 12 months, 21 (11.1%) patients died, 6 (14%) in Gr.A and 15 (18%) in Gr.B (P=0.240), but no mortality was seen in those who had persistent THR at 1 year (n=78; P=0.000). In multivariate analysis, model for end-stage liver disease [hazard ratio (HR), 1.52; 95% confidence interval (CI), 1.22-2.75; P=0.034] and E-wave transmitral/early diastolic mitral annular velocity (HR, 1.28; 95% CI, 1.23-2.42; P=0.048) predicted 1-year mortality. Nonresponders had an increased mortality risk (HR, 1.3; 95% CI, 1.2-1.8; P=0.046) independent of age, gender, and baseline model for end-stage liver disease. Levels of norepinephrine, N terminal brain natriuretic peptide, plasma renin activity, and aldosterone were reduced (P<0.01) in responders. More patients in Gr.B developed acute kidney injury (odds ratio, 4.2; 95% CI, 2.8-10.5; P=0.027) and encephalopathy (odds ratio, 6.6; 95% CI, 1.9-9.7; P=0.040). CONCLUSIONS: Ivabradine combined with carvedilol improves LVDD, achieves THR more often and reduces risk of encephalopathy, acute kidney injury with improved survival in patients with cirrhosis.

Heparin-like Effect Associated With Risk of Bleeding, Sepsis, and Death in Patients With Severe Alcohol-Associated Hepatitis.

BACKGROUND & AIMS: Endogenous heparinoids or heparin-like effects (HLEs) can cause coagulation failure in patients with cirrhosis and sepsis. We performed a prospective study of the association between HLE and bleeding events, sepsis, and outcomes of patients with severe alcohol-associated hepatitis. METHODS: Our final analysis comprised 78 patients with severe alcohol-associated hepatitis (44.3 ± 11.7 years; all male; discriminant function >32) who presented without sepsis at a single center in India from August 2015 through August 2016. Blood samples were collected at days 0, 3, and 7 after presentation and assessed by a global coagulation assay; by SONOCLOT (global and heparinase treated); and in assays for factor VIII, von Willebrand factor, protein C, and antithrombin. Patients were followed for sepsis, bleeding and outcome. The primary outcome was association of HLE with survival 28 days after presentation. RESULTS: HLEs were observed in 32 patients (41%) at day 0, 27 patients (34.6%) at day 3, and 28 patients (35.9%) patients at day 7. Factors associated with mortality at day 0 were factor VIII activity >160% (hazard ratio [HR], 3.1; 95% CI, 1.4-9.5; P = .026), level of protein C <34% (HR, 0.7; 95% CI, 0.5-0.8; P = .037), antithrombin activity <28% (HR, 0.7; 95% CI, 0.3-1.1; P = .008) and international normalized ratio >2.6 (HR, 2.3; 95% CI, 1.8-9.7; P = .010). In multivariate analyses, only factor VIII activity (HR, 2.3; 95% CI, 1.6-7.8; P = .046), international normalized ratio (1.9; 95% CI, 1.2-4.3; P = .039), level of protein C (HR, 0.9; 95% CI, 0.7-1.1; P = .052) and model for end-stage liver disease score (HR, 3.2; 95% CI, 1.9-10.2; P = .042) were associated with mortality. Episodes of epistaxis, hemorrhoid bleeding, hemoperitoneum, and pulmonary hemorrhage occurred in 10.2%, 12.3%, 3.4%, and 4.5% of patients respectively. The presence of HLE at day 0 increased the risk of sepsis (HR, 2.5; 95% CI, 2.2-4.3; P = .002), bleeding (HR, 1.4; 95% CI, 1.2-5.3; P = .004) and death (HR, 1.2; 95% CI, 1.4-1.7; P = .044). CONCLUSIONS: In a prospective study of patients with severe alcohol-associated hepatitis, we associated HLE with coagulation abnormalities, risk of sepsis, and mortality. Clinicaltrials.govNCT02307409.

Left Ventricular Diastolic Dysfunction is Associated with Renal Dysfunction, Poor Survival and Low Health Related Quality of Life in Cirrhosis.

BACKGROUND: The presence of left ventricular diastolic dysfunction (LVDD) in patients with cirrhosis leads to a restriction of activities and a poor health related quality of life (HRQoL), which should be taken into consideration when treating them for liver and cardiac complications. AIMS: The prevalence, complications, predictors of HRQoL and survival in cirrhotic patients with LVDD were studied. METHODS: We report a prospective cohort study of 145 consecutive cirrhotic patients with LVDD who were evaluated for cardiac functional status at enrollment and followed up for hepatic complications, cardiac events, outcome and HRQoL using the Minnesota Living With Heart Failure Questionnaire (MLHFQ) over a period of 2 years. RESULTS: In total, 145 (mean age 61 years, 59% male) patients were included. Seventeen patients died with 10.5%, 22.5% and 40% mortality rates in patients with Grades 1, 2 and 3 LVDD respectively over 24 months. The parameters that were significant for predicting mortality on bivariate analysis were MELD, MELDNa, hepatic venous pressure gradient, MLHFQ, and left ventricular (LV) diastolic function (e' and E/e' ratio), but only MELD, MELDNa and E/e' remained significant on multivariate analysis. The E/e' ratio (8.7 ± 3.3 in survivors vs. 9.1 ± 2.3 in non-survivors) predicted outcome. On univariate analysis, the predictors of poor HRQoL were the Child-Pugh score ≥9.8 (OR 2.6; 95% confidence intervals (CI) 2.3-9.1, P = 0.041), MELD score ≥ 15.7 (OR 2.48; 95% CI 1.4-3.9, P = 0.029), refractory ascites (OR 1.9; 95% CI 1.1-6.1, P = 0.050), and E/e' ratio ≥7.6 (OR 1.9; 95% CI 1.8-7.1, P = 0.036) The presence of Class II/III (P = 0.046) symptoms of heart failure and MLHFQ≥ 45 (P = 0.042) were predictors of mortality at 24 months. CONCLUSION: The grade of LVDD correlates with liver function, clinical events, risk of renal dysfunction and HRQoL. Evaluation of novel therapies which target symptomatic improvement in LVDD, should be done with suitable outcome measures, including HRQoL assessment.

Difficult to Treat Recurrent Pyogenic Cholangitis With Portal Pylephlebitis in the Setting of Idiopathic CD4+ Lymphocytopaenia.

Recurrent pyogenic cholangitis (RPC) is a disease characterized by multiple strictures of the biliary tree, impaired biliary drainage, formation of intrahepatic biliary pigment stones and recurrent bouts of cholangitis. We report the case of a 39-year-old businessman with diagnosed chronic calcific pancreatitis, who presented to us with recurrent episodes of cholangitis, leading to portal pyaemia, and progressive liver failure, which could not be controlled despite adequate biliary drainage. The patient rapidly developed progressive liver failure and sepsis-related coagulation failure. He was also found to have idiopathic CD4+ T cell lymphocytopenia (ICL), which resulted in refractory sepsis and formation of metastatic abscesses in the lung and spleen. ICL is now recognised in patients with recurrent and difficult to treat opportunistic infections. The combination of RPC, sepsis and liver failure in the setting of an acquired immunosuppressed state makes this a unique management scenario.

Coagulation failure is associated with bleeding events and clinical outcome during systemic inflammatory response and sepsis in acute-on-chronic liver failure: An observational cohort study.

BACKGROUND: Patients with acute-on-chronic liver failure (ACLF) have coagulation failure in the setting of systemic inflammatory syndrome (SIRS), sepsis and extra-hepatic organ failures. METHODS: Consecutive ACLF patients without sepsis at baseline were assessed at days 0, 3 and 7 with thromboelastography (TEG) and specific assays (Factor VIII, von Willebrand factor [vWF], protein C and antithrombin III [ATIII]) and followed for development of sepsis, bleeding and outcome. RESULTS: Of 243 patients, 114 (63% ethanol related; mean age 44.3 ± 11.7 years; 90% male) were recruited. SIRS was noted in 39 (34.2%), 45 (39.5%) and 46 (40%) patients at days 0, 3 and 7 and sepsis in 28 (24%) and 52 (56.1%) patients at days 3 and 7 respectively. The 28- and 90-day survivals were 62% and 51% respectively. A hypocoagulable TEG at baseline was a predictor of bleeding (hazard ratio [HR] 2.1; CI 1.6-4.9; P = 0.050) and mortality (HR 1.9; CI 1.3-7.9; P = 0.043). ACLF patients had increased Factor VIII, vWF, tissue factor levels and tissue plasminogen activator (tPA) activity with reduced protein C and ATIII. Coagulation parameters like Coagulation Index (HR 2.1; CI 1.1-4.5; P = 0.044),clot lysis (HR 3.2; CI 1.9-3.4; P = 0.033), low protein C < 30% (HR 2.1; CI 1.5-2.8; P = 0.017), ATIII (HR 1.4; CI 1.7-3.1; P = 0.052) and tPA (HR 1.5; CI 1.1-2.4; P = 0.052) were predictors of mortality at day 28. Protein C activity <30% (HR 1.3; CI 1.0-2.9; P = 0.042) and tPA >20 ng/mL (HR 1.2; CI 1.1-2.1; P = 0.040) predicted mortality when adjusted for age, gender and baseline MELD. CONCLUSIONS: Dynamic coagulation derangements, measured by TEG, determine the likelihood of bleeding and mortality in ACLF.

Tongue flap as salvage procedure for recurrent and large palatal fistula after cleft palate repair.

BACKGROUND: Recurrent palatal fistula is a common complication of cleft palate repair. The main causes are poor surgical technique or vascular accidents and infection. Local flaps are not adequate for larger and recurrent fistula. The aim of this study is to analyze the utility of tongue flap in recurrent and large palatal fistula repair. MATERIALS AND METHODS: From January 2008 to July 2016, 18 patients with recurrent palatal fistula were included in the study. All the patients had undergone repair of cleft palate and fistula previously. Tongue flap repair of the recurrent palatal fistula was performed in all 18 patients. The flaps were divided after 3 weeks and final inset was done. Flap viability, fistula closure, residual tongue function, esthetics, and speech impediment were assessed. RESULTS: In all the patients, fistula could be closed primarily by tongue flap. None of the patients developed flap necrosis while flap dehiscence and bleeding were observed in one patient each. No functional deformity of the tongue and donor-site morbidity was seen. Speech was improved in 80% cases. CONCLUSION: The central position, mobility, excellent vascularity, and versatility of tongue flap make particularly suitable choice for the repair of large fistula in palates scarred by previous surgery. It is very well tolerated by children. We, therefore, recommend tongue flap for large and recurrent palatal fistula in children.

A Virtual Screening Approach for the Identification of High Affinity Small Molecules Targeting BCR-ABL1 Inhibitors for the Treatment of Chronic Myeloid Leukemia.

CML originates due to reciprocal translocation in Philadelphia chromosome leading to the formation of fusion product BCR-ABL which constitutively activates tyrosine kinase signaling pathways eventually leading to abnormal proliferation of granulocytic cells. As a therapeutic strategy, BCR-ABL inhibitors have been clinically approved which terminates its phosphorylation activity and retards cancer progression. However, a number of patients develop resistance to inhibitors which demand for the discovery of new inhibitors. Given the drawbacks of present inhibitors, by high throughput virtual screening approaches, present study pursues to identify high affinity compounds targeting BCR-ABL1 anticipated to have safer pharmacological profiles. Five established BCR-ABL inhibitors formed the query compounds for identification of structurally similar compounds by Tanimoto coefficient based linear fingerprint search with a threshold of 95% against PubChemdatabase. Assisted by MolDock algorithm all compounds were docked against BCR-ABL protein in order to retrieve high affinity compounds. The parents and similars were further tested for their ADMET propertiesand bioactivity. Rebastinib formed higher affinity inhibitor than rest of the four established compound investigated in the study. Interestingly, Rebastinib similar compound with Pubchem ID: 67254402 was also shown to have highest affinity than other similars including the similars of respective five parents. In terms of ADMET properties Pubchem ID: 67254402 had appreciable ADMET profile and bioactivity. However, Rebastinib still stood as the best inhibitor in terms of binding affinity and ADMET properties than Pubchem ID: 67254402. Nevertheless, owing to the similar pharmacological properties with Rebastinib, Pubchem ID: 67254402 can be expected to form potential BCR-ABL inhibitor.

Primary Hepatic Amyloidosis Presenting as Acute-on-Chronic Liver Failure.

Systemic amyloidosis of amyloid light chain associated protein (AL), also called primary amyloidosis, frequently involves the liver, but rarely causes clinically apparent liver disease. The more common presentation is with acute renal failure. Hepatomegaly and mild elevation of alkaline phosphatase are the most common clinical and biochemical findings, respectively. We report a case of systemic amyloidosis of AL that clinically presented as acute-on-chronic liver failure and resulted in a fatal clinical course in a 56-year-old man.

Impact of family history of metabolic traits on severity of non-alcoholic steatohepatitis related cirrhosis: A cross-sectional study.

BACKGROUND & AIMS: Familial aggregation of metabolic traits with fatty liver disease is well documented. However, there is scarcity of data regarding such association with non-alcoholic steatohepatitis (NASH)-related cirrhosis. This study was aimed to explore the association of family history of metabolic traits with severity of cirrhosis. METHODS: In a cross-sectional study, all consecutive patients with NASH-related cirrhosis presenting to our tertiary care centre were included. Family history, personal history, demographic characteristics, medical history, anthropometric measurements and laboratory data were recorded. RESULTS: Of the 1133 cirrhotics (68.1% males, age 51.4±10.9 years); 779 (68.8%) had family history for metabolic traits. These patients had lower age at diagnosis (45.4±10.6 vs 49.6±11.2 years), higher Child-Turcotte-Pugh (CTP) score (7.8±1.9 vs 6.6±1.5), higher model for end stage liver disease (MELD) score (12.9±6.1 vs 10.9±4.1) and more incidence of decompensation in the form of ascites (46.3% vs 25.7%), jaundice (12.1% vs 6.2%) and hepatic encephalopathy (26.1% vs 11.0%). Patients with family and personal history of metabolic traits, had an increased risk of an early diagnosis of cirrhosis at<45 years of age (OR: 3.1, 95% CI 2.1-4.4), CTP≥10 (OR: 4.6, 95% CI 2.3-9.1), MELD>15 (OR: 6.6, 95% CI 3.8-11.5) with ≥1 features of decompensation (OR: 4.2, 95% CI 2.9-6.1). Family history of diabetes alone, also had higher risk of cirrhosis with MELD>15 (OR: 4.3, 95% CI 2.4-5.3, P<.001). CONCLUSION: Family and personal history of metabolic traits are associated with early age at diagnosis of cirrhosis with more severity and decompensation and so, has a prognostic importance in NASH-related cirrhotics.

Cholangicarcinoma Presenting as a Sister Mary Joseph Nodule.

Sister Mary Joseph nodules represent metastatic cancer of the umbilicus. More than half of these cases are attributable to gastrointestinal malignancies including gastric, colonic, and pancreatic cancer. In addition, gynecologic (ovarian, uterine cancer), unknown primary tumors, and, rarely, bladder or respiratory malignancies may cause umbilical metastasis. We report the case of a Sister Mary Joseph nodule originating from a hilar cholangiocarcinoma. Umbilical nodules should prompt clinical evaluation, as these tumors are usually associated with poor prognosis.

Intussusception in a premature neonate: A rare and often misdiagnosed clinical entity.

Intussusception is a very rare cause of intestinal obstruction in neonates. It is of extremely rare occurrence among premature neonates. We present a case of 11-day-old premature neonate who presented with abdominal distension, intolerance to feeds, vomiting, significant bilious aspirate and bleeding per rectum. The initial diagnosis of necrotizing enterocolitis (NEC) led to a delay in the diagnosis. On exploratory laparotomy, it turned out to be a case of ileo-colic intussusception with Meckel's diverticulum as a lead point. This site of intussusception (ileo-colic) and presence of a lead point among premature neonate is of exceedingly rare occurrence and very few such cases have been reported. In this article, the published work about clinical features and management on intussusceptions in premature neonates has been reviewed. The authors intend to highlight the difficulty in distinguishing the NEC and intussusception. Subtle clinical and radiological features which can help in differentiating the two conditions have been emphasized. This can avoid the delay in diagnosis and management which can prove critical. High index of suspicion with timely intervention is the key for optimizing outcome. A diagnosis of intussusception should always be considered in any preterm infant with suspected NEC.

Neonatal carrier: An easy to make alternative device to costly transport chambers.

The transport of sick neonates to the surgical centers or transportation within the center is an essential requirement of neonatal surgery. Neonatal transport incubators are costly, space occupying, and are not available at many places in the developing countries. We report here a cheap yet effective and easy to make, alternate neonatal carrier device.

Mayer-Rokitansky-Kuster-Hauser syndrome and anal canal stenosis: case report and review of literature.

Mayer-Rokitansky-Kuster-Hauser (MRKH) is a characteristic syndrome in which the mullerian structures are absent or rudimentary. It is also associated with anomalies of the genitourinary and skeletal systems. There are very few cases reported regarding its association with anorectal malformations, particularly perineal fistulas. To the best of our knowledge, there have not been any reported cases of anal canal stenosis in patients with MRKH. We describe a very rare association of MRKH with anal canal stenosis and multiple renal calculi. The patient underwent corrective surgery for the anomalies and removal of renal calculi. She has been under regular follow-up for the last few months and is doing well.

Severe myocardial depression in a patient with aluminium phosphide poisoning: a clinical, electrocardiographical and histopathological correlation.

Aluminium phosphide poisoning is very common in India. It is one of the most fatal poisons. The clinical spectrum of poisoning varies depending upon the dosage and duration of consumption. The main effect of the poison is due to the release of phosphine which inhibits cytochrome oxidase and thereby hampers cellular oxygen utilization. Almost any organ can be affected by aluminium phosphide poisoning. We report a case where the heart was the predominantly affected organ. We describe the clinical symptoms and signs and their correlation with electrocardiographic and histopathological examinations.