All natural animals and plants are holobionts, consisting of the host and microbiome, which is composed of abundant and diverse microorganisms. Health and disease of holobionts depend as much on interactions between host and microbiome and within the microbiome, as on interactions between organs and body parts of the host. Recent evidence indicates that a significant fraction of the microbiome is transferred by a variety of mechanisms from parent to offspring for many generations. Genetic variation in holobionts can occur in the microbiome as well as in the host genome, and it occurs more rapidly and by more mechanisms in genomes of microbiomes than in host genomes (e.g. via acquisition of novel microbes and horizontal gene transfer of microbial genes into host chromosomes). Evidence discussed in this review supports the concept that holobionts with their hologenomes can be considered levels of selection in evolution. Though changes in the microbiome can lead to evolution of the holobiont, it can also lead to dysbiosis and diseases (e.g. obesity, diarrhea, inflammatory bowel disease, and autism). In practice, the possibility of manipulating microbiomes offers the potential to prevent and cure diseases.
Stents are widely use in endoscopic urological procedures. One of the most important indications is the treatment of urinary tract strictures. Allium™ Medical has introduced several types of stents for the treatment of different types of urinary tract strictures, based on anatomic location. All the stents are made of nitinol and coated with a co-polymer that reduces encrustations. These stents are self-expandable and have a large caliber and a high radial force. They have different shapes, designed especially for the treatment of each type of stricture. One of the most important features of Allium-manufactured stents is the ease of removal, due to their special unraveling feature. The company has introduced the Bulbar Urethral Stent (BUS) for treatment of bulbar urethral strictures; a rounded stent available in different lengths. Initial data on 64 patients with bulbar urethral stricture treated with the BUS showed a significant improvement in symptoms, with minimal complications and few adverse events. For treatment of prostate obstruction in patients unfit for surgery or unwilling to undergo a classical prostatic surgery, the Triangular Prostatic Stent (TPS) was introduced, which has a triangular shape that fits in the prostatic urethra. Its body has a high radial force attached to an anchor (which prevents migration) through a trans-sphincteric wire (which reduces incontinence rate). Initial data on 51 patients showed significant improvement in symptoms and in urinary peak flow rate, with a relatively small number of complications. The Round Posterior Stent (RPS) was designed for treatment of post radical prostatectomy bladder neck contracture. This short, round stent has an anchor, which is placed in the bladder neck. This stent being relatively new, the clinical data are still limited. Ureteral strictures can be treated with the Ureteral Stent (URS), which is round-shaped, available in different lengths, and has an anchor option (for very distal or very proximal strictures). We have previously published data on 107 URSs inserted in patients with ureteral stricture due to several etiologies, including patients who failed previous treatment. All patients were asymptomatic for a long period of follow-up after stent removal, with only one case of re-stenosis. In this paper, we review the urological “covered” stents produced by Allium Medical with the relevant clinical data available at the present time.
Objective: The objective of this study was to retrospectively review clinical data, management protocols, and clinical outcomes of patients with fibromatoses of head and neck region treated at our tertiary care center.
Methods: We retrospectively reviewed the medical records of 11 patients with confirmed histopathological diagnosis of fibromatosis registered in the Department of Head and Neck Surgery at Tata Memorial Centre, India, between 2009 and 2019. Various clinical and pathological features and treatment modalities were evaluated.
Results: Age at diagnosis ranged between 18 and 74 years, with a median age of 36 years. The female-to-male ratio was 5:6. Supraclavicular fossa (n=4) was the most common subsite of origin in the neck (n=8). The lateral (n=2) and posterior cervical regions (n=2) were other common neck subsites. Less commonly involved sites were the mandible (n=1), maxilla (n=1), and thyroid (n=1). A total of eight patients underwent surgery at other centers before being referred to us for further management. Out of a total 11 patients, nine patients had unresectable disease at presentation. Six of the patients with unresectable disease received a combination of weekly doses of vinblastine 6 mg/m2 and methotrexate 30 mg/m2 for a median duration of 6 months (range 6–18 months) followed by hormonal therapy with tamoxifen. Three patients received metronomic chemotherapy followed by hormonal therapy. One treatment-naive patient with fibromatosis of posterior cervical (suboccipital) region underwent R2 resection (excision of bulk of the tumor with preservation of critical structures) at our center along with adjuvant radiotherapy. One pregnant patient reported to us after undergoing surgery outside and defaulting radiotherapy. During median follow-up of 29 months (range 1–77 months), six patients had stable disease, and four patients had disease reduction. Disease progression was seen in one patient. The two-year progression-free survival (PFS) was 90% (95% CI 70%–100%).
Conclusion: Gross residual resection (R2) was the mainstay of surgical treatment in our series as obtaining clear surgical margins is seldom possible in these locally aggressive tumors. Radiotherapy, chemotherapy, and hormonal therapy are the other preferred and more conservative treatment modalities. The goal of surgery should be preserving function with minimal or no morbidity. As fibromatoses in the head and neck region are extremely rare, their treatment awaits the development of standard treatment protocols.
Objective: Acute pancreatitis is a serious diagnosis with an increasing incidence in the Western world. In this study we sought to investigate the incidence of idiopathic AP and to compare clinical and prognostic characteristics of idiopathic cases with cases of AP with known etiology.
Methods: In this retrospective study of adult hospitalized patients diagnosed with acute pancreatitis between 2012 and 2015, a comparison was made between admissions of patients with known etiology and those for whom no cause was found. Primary outcome was defined as composite outcome of 30-day mortality and complications.
Results: Among 560 admissions of 437 patients with a primary diagnosis of acute pancreatitis, the main factors identified were gallstones (51.2%) and idiopathic pancreatitis (35.9%), with alcohol ranked third at only 4.8%. Mortality rate within 30 days of hospitalization was 2.9% and within one year was 7.1%. Use of lipid-lowering, anti-hypertensive, and anti-diabetic medications was more frequent among patients with “idiopathic” disease (70%, 68%, and 33% versus 59%, 56%, and 27%, respectively). Patients admitted with idiopathic AP, in comparison to patients with known AP etiology, had milder disease with shorter hospital stay (3 days versus 4, respectively), and less re-admission in 30 days (7.5% versus 21.2%). Idiopathic AP patients had better prognosis in terms of 30-day death and complication (HR 0.33, 95% CI 0.08–0.40, P<0.001).
Conclusion: Idiopathic disease is common among acute pancreatitis patients; the two study groups differed in severity of disease and prognosis. Common use of medications with doubtful value suggests possible under-diagnosis of drug-induced acute idiopathic pancreatitis.
This review examines the risk of developing celiac disease (CD) and other autoimmune diseases in individ¬uals receiving the rotavirus (RV) vaccine compared to the normal population. Celiac disease is a malabsorp¬tive, chronic, immune-mediated enteropathy involving the small intestine. The pathogenesis of CD is multifactorial, and mucosal immunity plays an important role in its development. Low mucosal IgA levels significantly increase the risk of developing the disease. Rotavirus is an infectious agent that causes diar¬rhea, particularly in children aged 0–24 months, and is frequently involved in diarrhea-related deaths in these children. An oral vaccine against RV has been developed. While it is effective on RV infection, it also contributes to increasing mucosal immunity. Studies have indicated that individuals immunized with the RV vaccine are at lower risk of developing CD than unvaccinated individuals. In addition, the mean age for developing CD autoimmunity may be higher in the vaccinated group than in controls receiving placebo. Additional studies that include children immunized with different RV vaccines and unvaccinated children would provide more meaningful results. Although current data suggest a possible association of RV vaccina¬tion with a reduced risk of developing CD and other autoimmune diseases, this remains an unanswered question that merits greater international investigation.
This research letter presents our study, which sought to evaluate the differences in the prevalence of self-reported symptoms of depression, anxiety, and loneliness between younger and older generations at the time of the COVID-19 pandemic. Since the younger generation is generally less accustomed to facing and dealing with adversity and illness, we hypothesized that adolescents and younger adults would have a higher prevalence of depression, anxiety, and loneliness as compared to the older generation. It must be emphasized that this survey was conducted during the first COVID-19 lockdown that occurred in Israel from mid-March 2020 to early-May 2020. This was a time when businesses were closed, individuals and families were isolated at home with very limited social contact, and feelings of fear and panic were fueled by the electronic media.
Objectives: To study the correlation between the putative cancer stem cell (CSC) markers aldehyde dehydrogenase 1 (ALDH1), cluster of differentiation 44 (CD44), sex-determining region Y-box 2 (SOX2), and octamer-binding protein 4 (OCT4) and human papilloma virus (HPV) infection using p16, the surrogate marker of HPV in oral epithelial dysplasia (OED) and normal mucosa.
Methods: Five sections each from 40 histopathologically diagnosed cases of different grades of OED and 10 cases of normal oral mucosa without dysplasia were immunohistochemically stained with p16, ALDH1, CD44, SOX2, and OCT4, respectively.
Results: Expression of ALDH1 and SOX2 was significantly increased in OED cases, whereas CD44 and OCT4 expression was increased in normal mucosa. P16-positive OED cases showed upregulation of ALDH1 and OCT4 expression as compared to p16-negative cases, while CD44 and SOX2 expression was downregulated in p16-positive OED cases; however, the results were not statistically significant.
Conclusion: The present study indicated a suggestive link between p16 and cancer stem cell marker expression in HPV-associated OED, and that p16 has a significant role in CSC progression in OED. This is the first study to evaluate the expression of putative CSC markers in HPV-associated OED. However, low study numbers are a potential limiting factor in this study.
The Jews in Western Europe during the middle ages were often perceived as distinct from other people not only in their religion, but also by virtue of peculiar physical characteristics. Male Jews were circumcised, which made them physically distinct in the sexual realm. They were believed to have a flux of blood due to hemorrhoids that was thought to more abound in Jews because they consumed salty foods and gross undigested blood, and were melancholic. By the late medieval and early modern periods, the male menstru¬ation motif had become closely connected to the theory of the four humors and the balance between bodily fluids. Men in general were thought of as emitting extra heat, whereas women were considered to be phys¬ically cooler. While most men were generally able to reduce their heat naturally, there was a perception that womanish Jewish males were unable to do so, and thereby required “menstruation” (i.e. a literal discharge of blood) in order to achieve bodily equilibrium. The Jewish male image as having menses due to bleeding hemorrhoids was an anti-Semitic claim that had a religious explanation: Jews menstruated because they had been beaten in their hindquarters for having crucified Jesus Christ. This reflection is one of the first biological-racial motifs that were used by the Christians. Preceding this, anti-Semitic rationalizations were mostly religious. However, once these Christians mixed anti-Semitism with science, by emphasizing the metaphorical moral impurity of Jews, the subsequent belief that Jewish men “menstruated” developed—a belief that would have dire historical consequences for the Jewish communities of Europe until even the mid-twentieth century. This topic has direct applicability to current medical practice. The anti-Semitic perspec¬tive of Jewish male menstruation would never have taken hold if the medical community had not ignored the facts, and if the population in general had had a knowledge of the facts. In the same way, it is important for present-day scientists and healthcare professionals to understand thoroughly a topic and not to deliberately ignore the facts, which can affect professional and public thought, thereby leading to incorrect and at times immoral conclusions.
Background: Eosinophils constitute 1%–5% of peripheral blood leukocytes, less in the presence of acute infections (referred to as eosinopenia). Studies indicate that eosinopenia can be used as a prognostic predictor for chronic obstructive pulmonary disease exacerbation, sepsis, or acute myocardial infarction disease. There are only a few studies about predicting mortality in emergency departments and intensive care units (ICUs). Prognostic studies about patients in ICUs are generally carried out using different scoring systems. We aimed to analyze if the eosinophil count can estimate the prognosis among non-traumatic patients who underwent cardiopulmonary resuscitation and were hospitalized in ICU thereafter.
Methods: The data were evaluated of 865 non-traumatic adult patients (>18 years of age) who were admitted with cardiopulmonary arrest or developed cardiopulmonary arrest during clinical follow-ups. Admission venous blood sample tests, complete blood count, and biochemical laboratory results were recorded. Arterial blood gas results were also evaluated. The mean results of the recorded laboratory results were compared between the surviving and non-surviving patients groups.
Results: There was a significant difference between the two groups in regard to platelet, eosinophil count, pH, PaO2, SaO2, and HCO3- (P<0.001 for all). In the multiple linear regression analysis, eosinophil counts were found to be an independent factor (odds ratio=0.03, 95% confidence interval 0.33–0.56, P<0.001) associated with the mortality after cardiopulmonary resuscitation.
Conclusion: Because admission eosinophil counts can be measured easily, they are inexpensive biomarkers that can be used for predicting the prognosis among the patients who have return of spontaneous circulation and are treated in ICUs.
Effective chest compressions have been proven to be a key element in a successful cardiopulmonary resuscitation (CPR). However, unintended injuries have been described in the medical literature for decades, including major intrathoracic injuries. We present a case of an 80-year-old man after a successful CPR who was later diagnosed with deep epicardial laceration as a result of effective chest compressions.
