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Fahmi Shibli,Ofer Z Fass,Oscar Matsubara Teramoto,José M Remes-Troche,Vikram Rangan,Michael Kurin,Ronnie Fass 대한소화기 기능성질환∙운동학회 2023 Journal of Neurogastroenterology and Motility (JNM Vol.29 No.1
Background/AimsPresently, there is paucity of information about clinical predictors, especially esophageal motor abnormalities, for long segment Barrett’s esophagus (LSBE) as compared with short segment Barrett’s esophagus (SSBE). The aims of this study are to compare the frequency of esophageal function abnormalities between patients with LSBE and those with SSBE and to determine their clinical predictors. MethodsThis was a multicenter cohort study that included all patients with a diagnosis of BE who underwent high-resolution esophageal manometry. Motility disorders were categorized as hypercontractile disorders or hypocontractile disorders and their frequency was compared between patients with LSBE and those with SSBE. Multivariable logistic regression modeling was used to calculate the odds of being diagnosed with LSBE relative to SSBE for demographics, comorbidities, medication use, endoscopic findings, and the type of motility disorders. ResultsA total of 148 patients with BE were identified, of which 89 (60.1%) had SSBE and 59 (39.9%) LSBE. Patients with LSBE had a significantly larger hiatal hernia and higher likelihood of erosive esophagitis than patients with SSBE (P = 0.002). Patients with LSBE had a significantly lower mean LES resting pressure, distal contractile integral, distal latency, and significantly higher failed swallows and hypocontractile motility disorders than those with SSBE (P < 0.05). Hiatal hernia and hypocontractile motility disorder increased the odds of LSBE by 38.0% and 242.0%, as opposed to SSBE. ConclusionsThe presence of a hypocontractile motility disorder increased the risk for LSBE. Furthermore, the risk for LSBE was directly associated with the length of the hiatal hernia.
The Impact of COVID-19 on Bangladesh's Economy: A Focus on Graduate Employability
SHAHRIAR, Mohammad Shibli,ISLAM, K.M. Anwarul,ZAYED, Nurul Mohammad,HASAN, K.B.M. Rajibul,RAISA, Tahsin Sharmila Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.3
The COVID-19 pandemic is having an adverse impact on Bangladesh's economy by affecting millions of people's life and hampering their income sources. The outbreak of COVID-19 has created more pressure on the labor market. The pandemic reduces employment opportunities as most of the companies have stopped their recruitment process to cut their operational costs, which increases the rate of graduate unemployment in Bangladesh. Hence, this study aims to investigate the impact of COVID-19 on graduate employability in Bangladesh that adversely affects the income of families and eventually the nation's economy. A literature review has been conducted from secondary sources to evaluate the impact, which shows that the rate of graduate unemployment increased from 47% to 58% in 2020 with an expected annual loss estimated at $53 million. Findings also reveal that the prime reasons for graduate employability are low demand and huge supply of graduates in the labor market, lack of professional skills of graduates, ineffective education system, etc. The study suggests that the government of Bangladesh should develop some policies to overcome this problem such as ensuring employment subsidies, implementing skills development programs, improving labor market flexibility, initiating credit programs for generating employment, and developing entrepreneurial ecosystems in Bangladesh.
Prerna Chaturvedi,Amarsingh Bhabu Kanagaraj,Maryam Sultan Al Nahyan,Hamda Al Shibli,Hamda Al Shibli,Hamed Fadaq,Sultan Al Dahmani,Daniel S. Choi 한국물리학회 2019 Current Applied Physics Vol.19 No.11
The spinel lithium titanate oxide (Li4Ti5O12, LTO) has been extensively studied as one of the most promising alternatives to carbon materials in energy conversion and storage devices, due to its high structural and thermal stability, rate capability, and excellent cycling stability. In this study, Li4Ti5O12/multi-walled carbon nanotubes (LTO-MWCNTs) free-standing and flexible composite electrodes/buckypapers were prepared via tape casting technique and well compared with commercially available LTO. The structural, morphological, electrical and electrochemical properties of LTO-MWCNTs buckypaper as well as LTO were studied. The electrical conductivity of LTO-based buckypaper was found to be very high i. e, 4.4×102 Scm−1 at room temperature. Further, the buckypaper prepared by synthesized LTO showed higher specific capacity (166 mAhg−1) compared to commercially available LTO (137 mAhg−1) at 0.2 C rate. The enhanced electrochemical performance of as-synthesized LTO-based buckypaper is mainly attributed to the higher electronic conductivity and homogeneous distribution of particles with its small size which facilitates large amount of active sites for lithium insertion and also short diffusion paths.
Diagnosis and Management of Functional Chest Pain in the Rome IV Era
Ronnie Fass,Fahmi Shibli,Jose Tawil 대한소화기 기능성질환∙운동학회 2019 Journal of Neurogastroenterology and Motility (JNM Vol.25 No.4
Functional chest pain accounts for about a third of the patients with noncardiac chest pain. It is a very common functional esophageal disorder that remains even today a management challenge to the practicing physician. Based on the definition offered by the Rome IV criteria, diagnosis of functional chest pain requires a negative workup of noncardiac chest pain patients that includes, proton pump inhibitor test or empirical proton pump inhibitor trial, endoscopy with esophageal mucosal biopsies, reflux testing, and esophageal manometry. The mainstay of treatment are neuromodulators that are primarily composed of anti-depressants. Alternative medicine and psychological interventions may be provided alone or in combination with other therapeutic modalities.
Multiple Sclerosis Is Associated With Achalasia and Diffuse Esophageal Spasm
Yeseong Kim,Fahmi Shibli,Yuhan Fu,Gengqing Song,Ronnie Fass 대한소화기 기능성질환∙운동학회 2023 Journal of Neurogastroenterology and Motility (JNM Vol.29 No.4
Background/AimsMultiple sclerosis (MS) is an inflammatory disease characterized by the demyelination of primarily the central nervous system. Diffuse esophageal spasm (DES) and achalasia are both disorders of esophageal peristalsis which cause clinical symptoms of dysphagia. Mechanisms involving dysfunction of the pre- and post-ganglionic nerve fibers of the myenteric plexus have been proposed. We sought to determine whether MS confers an increased risk of developing achalasia or DES. MethodsCohort analysis was done using the Explorys database. Univariate logistic regression was performed to determine the odds MS confers to each motility disorder studied. Comparison of proportions of dysautonomia comorbidities was performed among the cohorts. Patients with a prior diagnosis of diabetes mellitus, chronic Chagas’ disease, opioid use, or CREST syndrome were excluded from the study. ResultsOdds of MS patients developing achalasia or DES were (OR, 2.09; 95% CI, 1.73-2.52; P < 0.001) and (OR, 3.15; 95% CI, 2.89-3.42; P < 0.001), respectively. In the MS/achalasia cohort, 27.27%, 18.18%, 9.09%, and 45.45% patients had urinary incontinence, gastroparesis, impotence, and insomnia, respectively. In the MS/DES cohort, 35.19%, 11.11%, 3.70%, and 55.56% had these symptoms. In MS patients without motility disorders, 12.64%, 0.79%, 2.21%, and 21.85% had these symptoms. ConclusionsPatients with MS have higher odds of developing achalasia or DES compared to patients without MS. MS patients with achalasia or DES have higher rates of dysautonomia comorbidities. This suggests that these patients have a more severe disease phenotype in regards to the extent of neuronal degradation and demyelination causing the autonomic dysfunction.
Anorexia Nervosa and Osteoporosis: Pathophysiology and Treatment
Jeremy Steinman,Amal Shibli-Rahhal 대한골대사학회 2019 대한골대사학회지 Vol.26 No.3
Anorexia nervosa (AN) affects 2.9 million people, many of whom experience bone loss and increased fracture risk. In this article, we review data on the underlying pathophysiology of AN-related osteoporosis and possible approaches to disease management. Available research suggests that low body weight and decreased gonadal function are the strongest predictors of bone loss and fractures in patients with AN. Additionally, other metabolic disturbances have been linked to bone loss, including growth hormone resistance, low leptin concentrations, and hypercortisolemia, but those correlations are less consistent and lack evidence of causality. In terms of treatment of AN-related bone disease, weight gain has the most robust impact on bone mineral density (BMD). Restoration of gonadal function seems to augment this effect and may independently improve BMD. Bisphosphonates, insulin-like growth factor 1 supplementation, and teriparatide may also be reasonable considerations, however need long-term efficacy and safety data.
Afroz Sultana,Noman Md Shibly,Zhang Yue,Qin Yujia,Chowdhury S.M. Kamrul Hasan,Li Zhihong 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.2
Oriental fruit fly, Bactrocera dorsalis (Hendel), is a destructive and highly polyphagous invasive fruit fly species of numerous fruit crops in global agriculture. Population genetic structure of this species from five different lo cations of Bangladesh was examined with other samples (collected from GenBank) from 15 sites of neighboring Asian countries. A fragment of 770 bp mitochondrial DNA cox1 was used to investigate the genetic diversity and the relationship between genetic patterns and geographical distribution of B. dorsalis. A total of 232 variable sites (33.23% of the 698 bp aligned consensus sequences) and 419 unique haplotypes were identified from 710 in dividuals. Indices of genetic diversity suggested that without exclusion from geographical areas, B. dorsalis retained a relatively high degree of genetic diversity. A demographic assessment [Tajimas’ D test, Fu’s Fs test and sum of square deviation (SSD values)] revealed that both current and historical variables performed a significant role in deciding the weak genetic structure with some exceptions. In Bangladesh, high levels of genetic diversity with a weak genetic structure indicated that the severity of this pest might increase in the future. Proper management techniques should be taken to overcome the future severity of this kind of destructive insect.
( Abbinaya Elangovan ),( Fahmi Shibli ),( Ronnie Fass ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2021 Journal of Neurogastroenterology and Motility (JNM Vol.27 No.2
Background/Aims Integrated relaxation pressure (IRP) is defined as the average minimum esophagogastric junction pressure for 4 seconds of relaxation (contiguous or noncontiguous) within 10 seconds of swallowing. The durability of IRP values during successive swallows in the supine position remains to be elucidated. The aim is to determine alteration in IRP values during successive swallows among subjects with normal esophageal manometry versus those with esophagogastric junction outflow obstruction (EGJOO). Methods Consecutive subjects, who underwent high-resolution esophageal manometry (HREM) were included in the study. Individuals had to have either normal manometry or EGJOO. A total of 10 wet swallows of 5 mL water were performed after an adaptation period of a minimum of 3 minutes. Mean IRP was analyzed for both subject groups for each individual swallow. Results Thirty-one patients with EGJOO and seventy patients with normal manometry were included. As expected, the median IRP was higher in EGJOO patients compared to those with normal HREM (mean: 23.92 vs 5.34, P < 0.001). The mean IRP of the last swallow was 40% lower than the mean IRP of the first swallow in the normal subjects (P = 0.015). In contrast, the difference in the mean IRP value in the EGJOO group between the first and the last swallow was 19% (P = 0.018). Conclusions This study demonstrated that there is a significant decline in the mean IRP during successive swallows in subjects with normal esophageal manometry and those with EGJOO, despite adequate adaptation periods. This decline in IRP was less pronounced in EGJOO. (J Neurogastroenterol Motil 2021;27:185-190)