Sidhartha R. Sinha's research while affiliated with Stanford University and other places

Publications (54)

Article
Introduction: Esophageal 24-hour pH/impedance testing is routinely performed to diagnose gastroesophageal reflux disease (GERD). Interpretation of these studies is time-intensive for expert physicians and has high inter-reader variability. There are no commercially available machine learning tools to assist with automated identification of reflux...
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Despite the existence of effective drugs used to treat inflammatory bowel disease (IBD), many patients fail to respond or lose response over time. Further, many drugs can carry serious adverse effects, including increased risk of infections and malignancies. Saffron (Crocus sativus) has been reported to have anti-inflammatory properties. Its protec...
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Diet is intimately linked to the gastrointestinal (GI) tract and has potent effects on intestinal immune homeostasis. Inflammatory bowel disease (IBD) is characterized by chronic inflammation of the GI tract. The therapeutic implications of diet in patients with IBD have received significant attention in recent years. In this review, we provide a c...
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The gut microbiome has increasingly been recognized as a critical and central factor in inflammatory bowel disease (IBD). Here, we review specific microorganisms that have been suggested to play a role in the pathogenesis of IBD and the current state of fecal microbial transplants as a therapeutic strategy in IBD. We discuss specific nutritional an...
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Background People with inflammatory bowel disease (IBD) including ulcerative colitis are at risk for colorectal cancer. Despite available effective drugs used to treat IBD, many patients fail or lose response over time with some displaying drug-induced adverse events. Saffron (Crocus sativus) has been reported to have anti-inflammatory properties....
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John Gubatan,1 Kian Keyashian,1 Samuel JS Rubin,2,3 Jenny Wang,2 Cyrus A Buckman,2 Sidhartha Sinha1 1Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA; 2Stanford University School of Medicine, Stanford, CA, USA; 3Immunology Program, Stanford University School of Medicine, Stanford, CA, USACorresp...
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Importance Physicians are required to work with rapidly growing amounts of medical data. Approximately 62% of time per patient is devoted to reviewing electronic health records (EHRs), with clinical data review being the most time-consuming portion. Objective To determine whether an artificial intelligence (AI) system developed to organize and dis...
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Background and Aims Vitamin D downregulates the in vitro expression of the gut-tropic integrin α4β7 on immune cells. The clinical relevance of this finding in patients with inflammatory bowel disease (IBD) is unclear. We tested the hypothesis that vitamin D is associated with α4β7 immunophenotypes and risk of vedolizumab (anti- α4β7) failure in IBD...
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Inflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract with an incompletely understood pathogenesis. Long-standing colitis is associated with increased risk of colon cancer. Despite the availability of various anti-inflammatory and immunomodulatory drugs, many patients fail to respond to pharmacologic the...
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Inflammatory bowel disease (IBD) is a complex and multifaceted disorder of the gastrointestinal tract that is increasing in incidence worldwide and associated with significant morbidity. The rapid accumulation of large datasets from electronic health records, high-definition multi-omics (including genomics, proteomics, transcriptomics, and metageno...
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Despite being a focal issue to patients, the effect of diet on adult inflammatory bowel disease (IBD) remains underexplored with limited guidance. While promising clinical trials are currently underway, there is a need for further evidence-based recommendations. As such, we summarize the current evidence on various diets used in the treatment of IB...
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Background Patients with primary sclerosing cholangitis (PSC) are at increased risk of developing acute cholangitis. The majority of patients with PSC have comorbid inflammatory bowel disease, and many take immunosuppressive medications. The epidemiological risks for the development of acute cholangitis in patients with PSC, including the impact of...
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The microbiome is an important contributor to a variety of fundamental aspects of human health, including host metabolism, infection, and the immune response. Gut dysbiosis has been identified as a contributor to the errant immune response in a variety of immune-mediated inflammatory diseases (IMIDs), such as inflammatory bowel disease (IBD), rheum...
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Secondary bile acids (SBAs) are derived from primary bile acids (PBAs) in a process reliant on biosynthetic capabilities possessed by few microbes. To evaluate the role of BAs in intestinal inflammation, we performed metabolomic, microbiome, metagenomic, and transcriptomic profiling of stool from ileal pouches (surgically created resevoirs) in cole...
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Background Most research manuscripts are not accepted for publication on first submission. A major part of the resubmission process is reformatting to another journal's specific requirements, a process separate from revising the scientific content. There has been little research to understand the magnitude of the burden imposed by the current resub...
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Background Patients with inflammatory bowel disease are using online community forums (OCFs) to seek emotional support. The impact of OCFs on well-being and their emotional content are unknown. Methods We used an unsupervised machine learning algorithm to identify the thematic content of 51,591 public, online posts from the Crohn’s & Colitis Found...
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Inflammatory bowel disease (IBD) includes Crohn's disease and ulcerative colitis. Each disease is characterized by a diverse set of potential manifestations, which determine patients' disease phenotype. Current understanding of phenotype determinants is limited, despite increasing prevalence and healthcare costs. Diagnosis and monitoring of disease...
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Background Patients with inflammatory bowel disease (IBD) are increasingly turning to online community forums (OCFs) to seek and share information, yet little is known about their userbase or content, which may dissuade providers from referring patients to OCFs. OCFs offer insight into patient priorities and their psychosocial well-being. We used t...
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Background Although cancer screening reduces morbidity and mortality, millions of people worldwide remain unscreened. Social media provide a unique platform to understand public sentiment toward tools that are commonly used for cancer screening. Objective The objective of our study was to examine public sentiment toward colonoscopy, mammography, a...
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Background Prescribing information for tumor necrosis factor alpha (TNFα) inhibitors, a mainstay of treatment for moderate to severe inflammatory bowel disease (IBD), instructs cautious use in those with heart failure (HF). However, the limited data behind these warnings are inconclusive and should be weighed against mounting evidence demonstrating...
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Background Prescribing information for tumor necrosis factor alpha (TNFα) inhibitors, a mainstay of treatment for moderate to severe inflammatory bowel disease (IBD), instructs cautious use in those with heart failure (HF). However, the limited data behind these warnings are inconclusive and should be weighed against mounting evidence demonstrating...
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Systemic therapies for inflammatory bowel disease are associated with increased risk of infections and malignancies. Topical therapies reduce systemic exposure, but can be difficult to retain or have limited proximal distribution. To mitigate these issues, we developed a thermo-sensitive platform, using a polymer-based system that is liquid at room...
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Nasal steroids may significantly improve nasal obstructive symptoms with a reduction of adenoid size in children but do not consistently yield the same concurrent effect on enlarged palatine tonsils. Failure of nasal steroids to decrease the size of palatine tonsils is believed to be attributable to location and washout by saliva. The purpose of th...
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Despite having lower body mass index (BMI) compared to other ethnic groups, Asians continue to develop significant metabolic diseases such as hypertension and diabetes. To evaluate the disparate association of BMI and risk of hypertension and diabetes in Asians. We retrospectively studied 150,753 adults from the 1985-2011 California Behavioral Risk...
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Although many health technologies are indispensible to global health, many are inaccessible in developing countries. Yet most of the health technologies needed in such countries are not expensive, and there are ways to ensure their appropriate distribution.

Citations

... Particular attention needs to be paid to the increase in IBD in children and adolescents because of the impact these diseases can have on their quality of life, such as stunted growth, school absenteeism and the psychological effect of a chronic disease on the patient and family [69]. On the other hand, except for enteral nutrition, there are only limited data regarding the impact of diet on disease course, either considering adults [72,73] or children [74]. It should be noted that there is growing evidence of the role of the Western diet in the increasing prevalence of IBD worldwide [64,71,75]. ...
... For instance, the Crohn's disease exclusion diet (CDED), which is a low-fat, highprotein diet, has been effective for managing children with mild to moderate CD, as well as for patients with an unfavorable response to biological therapy. Changes in microbial diversity, depletion of Proteobacteria, and enrichment of Firmicutes, particularly Clostridiales, were noted following the intake of this diet [91]. Furthermore, studies in mice have shown that a ketogenic diet (KD) and low-carbohydrate diet (LCD) can cause modulation of specific composition and function of gut microbiota and metabolites. ...
... 59 As the interaction between selectins and ligands on leukocytes mediates the capture and rolling of the leukocytes, the interaction between integrins and CAMs mediates firm adhesion and transmigration. 60 So, the molecules recognized by selectins and CAMs are utilized to modify the drug vector to achieve active inflammation targeting. Besides, platelets can be activated to clot the wound area at the inflammation site. ...
... SPM-derived studies applied to medicine have demonstrated promising outcomes, including disease susceptibility prediction [9,10], improved understanding of disease progression patterns [11,12], identification of revisit patterns [13,14], enhanced pharmacovigilance for medication safety [15,16], and the exploration of relationships between medical conditions [17,18]. Despite several limitations, including variations in data quality, privacy concerns, the complexity of developing predictive models, and ethical considerations regarding data usage and transparency, medical research employing SPM has been actively reported to date [19,20]. ...
... Animals were maintained in accordance with the National Institutes of Health guidelines, and experiments were approved by Stanford University Institutional Animal Care and Use Committee the APLAC-24685. We used 4 mice per group in this study since our previous studies in rodents have shown the reproducible effect of saffron [23,26,28]. ...
... Moreover, recent reports have pointed to the importance of vitamin D in the natural history, treatment outcomes of IBD, and potentially all-cause mortality [11,12]. Indeed, previous studies have shown that low vitamin D levels are associated with disease severity and vedolizumab failure in patients with IBD [13][14][15]. Additionally, despite high doses of vitamin D, patients can achieve sufficiency even with supplementation [16,17]. We previously described, in a small group of patients, a lack of clinical remission when vitamin D levels are less than 30 ng/mL and persistent elevation in C-reactive protein (CRP) when vitamin D levels are extremely low (<15 ng/mL) [18]. ...
... They conclude that saffron suppressed 5HT, IL-1β, IL-6, and TNF-α secretion through inhibiting NF-κB expression. This prophylactic effect of saffron was accompanied with preserving the variety of the gut microbiota and increasing the short-chain fatty acids (Banskota et al., 2021). In another study on mice, 20 mg/kg of saffron ameliorated colitis excited by DSS by increasing antiinflammatory cytokines such as IL-10 and activating Nrf2 signaling pathway . ...
... Baugher recently studied the urinary microbiome, using AI to enhance infectious diagnosis, and Lin proposed the use of AI to understand the metagenomics of intestinal disease diagnostics [138,139]. Machine learning has been utilized recently to study the gut microbiome for the diagnosis of bowel diseases in humans [140][141][142]. In Manandhar's work, a gut microbiome-based supervised machine-learning approach was used for clinical diagnosis. ...
... Additionally, AI devices may benefit patients in ways that are not reflected by a health system's cost savings or rise in revenue. For example, AI-based systems may assist clinicians in reviewing patient records and synthesizing and highlighting clinically relevant data 17 . Such devices may reduce the time required for physician chart review by 20%. ...
... This results from the fact that the diet contains compounds with anti-inflammatory and immunomodulatory activities, and that it is one of the most important factors shaping gut microbiota diversity and composition, which is disturbed in IBD. [102][103][104] Polyphenol-rich extracts are known to influence gut microbiota. As they are obtained from various parts of plants, mainly fruits, seeds, rhizomes and leaves, they can form part of the everyday diet. ...