Archives of Gastroenterology Research

Although NK cells are recognized as effector lymphocytes of the innate immune system, they also regulate the adaptive immune response by releasing inflammatory cytokines and developing immunological memory. Unlike other lymphocytes such as T or B cells, NK cells do not express rearrangeable, antigen-specific receptors. 

Artificial Intelligence (AI) principles published in 1956 included the recommendation to use algorithms for solving complex processes. The creation of the Roussel Uclaf Causality Assessment Method (RUCAM) was published in 1993 with integration of an intelligent algorithm to solve issues of causality assessment in cases of complex suspected drug induced liver injury (DILI) cases. Other causality assessment methods (CAMs) published before the era of AI and RUCAM followed rather general principles without precise and valid algorithm.

There are many exciting developments in the field of midlife women’s health which explain how menopause symptoms, particularly hot flashes, may be an important vital sign and predictor of future health status. Additionally, in the therapeutic realm, there is a new class of medications that affect the thermoregulatory channels in the brain that control vasomotor symptoms (VMS). This development may unlock treatment options for women who cannot tolerate or cannot safely take hormone therapy.

Cancer is a worldwide public health issue that affects millions of people every year. In 2018 there were 17 million newly documented cases of cancer globally (8.8 million in men and 8.2 million in women), leading to 9.6 million deaths. Cancer is a vastly heterogeneous disease, with over 100 different types of cancer currently identified in humans; the most common types of cancer are lung, female breast, bowel and prostate, these four types account for more than 40% of all new cancer case

Wound healing is a dynamic process whereby cellular structures and the tissue layers are reconstructed. Adult wound healing can be categorized into three stages: inflammatory phase, proliferative phase, and remodelling phase. Blood cells like macrophages, neutrophils, extracellular matrix and mediators, various proteins, and various genes play an important role in these phases.

Breast Cancer is the most regularly diagnosed type of cancer in women in the world, making up on its own 25% of all cases, or nearly 2 million new cases in 2018, and 15% of all cancer related deaths, or around 626,700 deaths for that same year.

The recently published manuscript entitled “Epigenetically Altered T Cells Contribute to Lupus Flares” summarizes recent advances in our understanding of how the environment alters the immune system to cause flares of systemic lupus erythematosus (SLE) in genetically predisposed people, and why it affects women approximately 9 times more often than men

Chronic hypertension is present in 1-2% of pregnant women. Women with chronic hypertension are at an increased risk of maternal and perinatal complications when compared with normotensive women. It is not uncommon for the women with chronic hypertension to present first time during pregnancy and obstetricians are the first one to encounter them during antenatal checkup. Secondary hypertension is often unrecognised and misdiagnosed thus leading to improper treatment with significant risk to the mother and fetus. 

Women with rare bleeding disorders (RBDs) can be exposed throughout their life to several complications such as menorrhagia or hemorrhagic complications during pregnancies and deliveries. Among RBDs, factor XIII deficiency leads to life-threatening hemorrhages such as intracranial hemorrhage, and women during their reproductive period may experience gynecological and obstetric complications, and more specifically recurrent miscarriages due to the role of FXIII in placenta attachment.

Autophagy was originally viewed as a widely conserved multistep lysosomal degradation pathway in eukaryotes. It includes the formation of autophagosomes, doublemembrane structures engulfing cytoplasm with damaged organelles during the degradation process.

COVID-19 is the new emerging viral infection that already cause global public health problem. More than 220 countries/territories are already attacked and there are more than 17 million patients around the world. This disease was firstly reported in China then in Indochina and extended worldwide. The patient can have febrile respiratory illness and there are many asymptomatic and mild symptomatic cases. The new viral respiratory infection causes several medical and non-medical problems and it is a big challenge to be managed.

For a long time, it was rare to see a case of cervical pregnancy (CP) throughout the journey in the field of obstetrics. Recently, the circumstances showed dramatic changes and I think not uncommonly every one elsewhere in the field may face this problem to some extent and the CP term strikes his/her ears. This may be attributed to an actual increase in CP rate that go parallel to widespread application of Assisted Reproduction Techniques (ART) procedures all over the world on one hand and earlier diagnosis owing to liberal utilization and more familiarity with Transvaginal Sonography (TVS) on the other hand.

Cancer is the second most common cause of death worldwide, accounting for an estimated 9.6 million deaths in the year 2018, a number that is expected to grow to more than 13 million by 2030. In the past decade, we have witnessed unprecedented scientific advancement in the understanding of cancer etiology, prevention, diagnosis and development of new therapeutic strategies.

Pharmaceutical companies have been actively adopting artificial intelligence (AI) approaches for drug discovery and are starting to focus this technology on clinical trials. The shift from large-scale collaborations to smaller strategic partnerships and recently to internal teams has led to increased headcounts that are being organized to deliver AI across the enterprise. Although the urgency of the COVID-19 could have been a perfect test case for leveraging AI, it drew awareness to the obstacles of data access.

Autophagy is the one of the essential pathways for maintaining homeostasis of cells and plays an important regulatory role in cell survival and death. Tp53-induced glycolysis and apoptosis regulator (TIGAR) is a Tp53 target protein and is not only involved in the regulation of metabolism, cell cycle progression and radiation response, but also plays a role in autophagy.

The Coronavirus disease 2019 (COVID-19) is an infectious disease caused by the new coronavirus of severe acute respiratory syndrome 2 (SARS-CoV-2), single-stranded, positive sense, spherical RNA virus with spikes protein that protrude on its surface giving the appearance of a crown, from the Latin corona. It belongs to the large family of coronaviruses (CoVs) and the genus β-coronavirus. COVID-19 can involve manifestations in the respiratory system, as well as other biological systems, as a intestinal.

Alpha-fetoprotein (AFP) is a tumorous marker for the diagnosis of hepatocellular carcinoma (HCC), it is synthesized mainly by the embryo yolk sac, fetal liver and the gastrointestinal tract. AFP belongs to the family of protein products of albuminoid genes, which are located in tandem arrangement in chromosome 4 (region 4q11-q13).

A 33-year-old pregnant woman at 26 weeks gestation presented with abdominal pain in the right iliac fossa. She had a history of a left ovarian cyst. The current pregnancy was normal. The patient was apyretic. Laboratory testing revealed no inflammatory syndrome (leukocyte count of 10G/L and pro c reactive levels were 8 mg/L). In the absence of a diagnosis and given a non-contributory abdominal ultrasound, MRI was requested and revealed a right ovarian teratoma measuring 55 × 73 mm. 

The Corona Virus disease is a severe respiratory problem generated via severe acute respiratory syndrome coronavirus 2 (SARS CoV-2). The latest strain of the disease was deadly enough to halt the global routines of human development. In this context, a number of research studies have been conducted to provide knowledge and to combat with this severe illness.

How medications whose major biologic effect is to reduce bile acid synthesis favorably affect the course of a variety of cholestatic and metabolic liver diseases is not immediately apparent. Also, the most frequently used plasma biomarkers for evaluating benefit, alkaline phosphatase and conjugated bilirubin [1], provide different information. The former may be misleading with respect to the course of the disease and therefore it is important to focus on the pathophysiologic basis for its use.