Publications by authors named "Nigam N"

 Pediatric obesity is a common comorbid condition that may complicate pediatric surgeries, such as appendectomy. Prior research on the consequences of obesity on pediatric appendectomy outcomes have been limited by small-sample sizes and pooled analyses that do not distinguish the effects of surgical approach. Associations between surgical approach, pediatric obesity, and postoperative appendectomy outcomes thus remain unclear.

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Introduction: Budd-Chiari syndrome (BCS) is an uncommon disease caused by hepatic venous outflow obstruction. They can result in centrilobular fibrosis, nodular regenerative hyperplasia and cirrhosis. Assessing liver fibrosis is crucial for determining the stage of BCS, predicting disease progression and guiding treatment decisions.

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New energy vehicles (NEVs), owing to their low carbon emission, have gained immense importance to achieve the net-zero emission target. The global NEVs market has grown significantly over the last decade. China, the United States (US), and Europe are the leading markets for NEVs.

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  • Leiomyomas are rare benign tumors from smooth muscle cells, with pancreatic cases being extremely uncommon, with only 6 known instances before this one.
  • A 21-year-old male presented with unusual symptoms, including jaundice and anemia, leading to the discovery of a mass in the pancreas through advanced imaging techniques.
  • The diagnosis of a low-grade leiomyoma was confirmed through biopsy and surgical removal, underscoring the need to consider such tumors in young patients and advocating for surgical resection as the best treatment option.
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  • - Gastrointestinal mucormycosis is a rare but severe fungal infection that primarily affects the stomach and can be particularly deadly in individuals with weakened immune systems, like those with Crohn's disease.
  • - Patients with Crohn's disease often face complications like perianal involvement, which can be debilitating and may necessitate aggressive treatment, including immunosuppressive therapies.
  • - The case of a middle-aged woman with perianal Crohn's disease on adalimumab who developed colonic mucormycosis illustrates the importance of recognizing fungal infections as potential triggers for flare-ups in inflammatory bowel disease.
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Cystic fibrosis (CF) is a life-threatening genetic disorder caused by mutations in the CFTR gene. This leads to a defective protein that impairs chloride transport, resulting in thick mucus buildup and chronic inflammation in the airways. The review discusses current and future therapeutic approaches for CFTR dysfunction and airway dysbiosis in the era of personalized medicine.

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Climate-induced extreme events with fluctuations in climatic indicators like temperature and precipitation highly influence crop productivity. This study deals with quantitative analysis of climatic variability and crop production (1990-2018) using panel data regression analysis. The focus is on variability of three crops, i.

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Paediatric germ cell tumours (GCT) are rare tumours and are unique because of varied clinical presentation and locations. Yolk sac tumour is the predominant malignant histology and a serum marker; alpha fetoprotein is used to see treatment response and recurrent disease. It is extremely rare to find a retroperitoneal GCT with tumour thrombus extending up to the cavo-atrial region with involvement of the hepatic veins.

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  • Klippel-Trenaunay-Weber Syndrome (KTWS) is a rare condition marked by venous malformations, vascular skin lesions, and asymmetrical growth of tissues, which can lead to serious health issues.
  • This study reviewed cases of pregnant women diagnosed with KTWS before birth and highlighted their postnatal care at a medical center in north India over a nine-year period.
  • Four fetuses were identified with KTWS, resulting in two terminations, one live birth that required treatment, and one intra-uterine fetal death, showcasing the need for effective prenatal diagnosis and follow-up for affected infants.
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Cancers often display immune escape, but the mechanisms are incompletely understood. Herein, we identify SMYD3 as a mediator of immune escape in human papilloma virus (HPV)-negative head and neck squamous cell carcinoma (HNSCC), an aggressive disease with poor response to immunotherapy with pembrolizumab. SMYD3 depletion induces upregulation of multiple type I interferon (IFN) response and antigen presentation machinery genes in HNSCC cells.

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Objective: To study the five mutations commonly prevalent in North India, i.e., IVS-I-5 (G→C), 619 bp deletion, IVS-I-1 (G→T), codon 41/42 (-TTCT), and codon 8/9 (+G), in the beta thalassemia (β-thalassemia) major children.

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  • Government-run teaching hospitals provide essential medical training to students, and the Covid-19 pandemic significantly disrupted these routines, impacting trainees' learning experiences.
  • This study analyzed attendance data from outpatient and inpatient departments during the pandemic, revealing a substantial decrease in patient visits and postponed surgeries as the hospital adapted to becoming a Covid facility.
  • The long-term implications of the pandemic on medical education and the learning environment must be acknowledged, as online learning, while helpful, has limitations that affect future healthcare professionals.
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Background/aims: The liver is often involved in both primary and secondary forms of amyloidosis. Significant clinical evidence of portal hypertension is relatively uncommon and seems to be related to the reduced sinusoidal lumen and increased resistance to blood flow due to massive perisinusoidal amyloid deposits. The relationships between the pattern and extent of amyloid deposition in patients presenting with portal hypertension have not yet been clearly demonstrated.

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  • - Bronchogenic cyst is a rare lung condition that can compress nearby structures, particularly airways, causing issues like atelectasis, emphysema, wheezing, and stridor.
  • - Diagnosis is confirmed through computerized tomography (CT) scans.
  • - The article discusses a specific case where an infant had a bronchogenic cyst that resulted in emphysema, leading to a respiratory emergency.
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Purpose: The utility of the Bethesda system for reporting thyroid cytopathology is debatable in determining the risk of malignancy in pediatric patients. Moreover, the upper age limit for defining the pediatric group has varied across different studies. The aim of this study is to compare the risk of malignancy (ROM) and risk of neoplasia (RON) across different Bethesda categories between the pediatric, young adult, and adult patients.

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