Simple Summary Peptides are ubiquitous molecules abundantly found in nature, and their diverse functions and biological activities have been extensively examined over the years. In the past, in vitro and in vivo biological effects of flaxseed oil have been well-examined and reported in numerous studies. However, the effects of many individual components from the flaxseed are yet to be examined. Cyclolinopeptides (CLPs), one of the components, have gained significant attention due to their cyclic nature and hydrophobic properties. CLPs are isolated from flaxseed and typically consist of eight, nine, or ten amino acid residues. Experimental investigations into the biological activities of CLPs began in the 1980s and early 1990s, revealing their potential therapeutic applications. In recent years, particularly, there has been interest in examining the anticancer effect of CLPs. Diverse bioactivities and potential therapeutic CLPs aspects seek novel approaches and further investigation to maximize utility. Abstract Novel therapeutic agents to combat cancer is an active area of research, as current treatment options have limitations in efficacy and tolerability. One of these therapeutic agents in our immediate environment is cyclolinopeptides (CLPs). CLPs have several advantages that make them suitable for daily consumption and potential therapeutics in cancer research. They are natural compounds, having high specificity, low toxicity, low cost, and an overall simple extraction process. Over the years, numerous in vitro studies in cancer cells demonstrated CLPs to possess anti-proliferative, apoptotic, and anti-angiogenic effects, as well as the ability to induce cell cycle arrest and inhibit cancer cell growth in various cancer types, including breast cancer, gastric cancer, and melanoma. This paper provides an overview of the significance and potential of CLPs as therapeutic agents, emphasizing their promising role in cancer treatment based on different cancer cell lines. The mechanism of action of CLPs in cancer cells is multifaceted. It involves the modulation of multiple signaling pathways, including inhibition of protein kinases, modulation of apoptosis-related proteins, and regulation of oxidative stress and inflammation.

Small cell lung cancer (SCLC) is an aggressive malignancy characterized by rapid proliferation, early dissemination, acquired therapy resistance, and poor prognosis. Early diagnosis of SCLC is crucial since most patients present with advanced/metastatic disease, limiting the potential for curative treatment. While SCLC exhibits initial responsiveness to chemotherapy and radiotherapy, treatment resistance commonly emerges, leading to a five-year overall survival rate of up to 10%. New effective biomarkers, early detection, and advancements in therapeutic strategies are crucial for improving survival rates and reducing the impact of this devastating disease. This review aims to comprehensively summarize current knowledge on diagnostic options, well-known and emerging biomarkers, and SCLC treatment strategies and discuss future perspectives on this aggressive malignancy.

ABSTRACT High-risk Human Papillomaviruses (HPVs) and Epstein – Barr virus (EBV) are present and involved in several types of human carcinomas, including cervical and, head and neck cancers. Nevertheless, their presence and association in the pathogenesis of colorectal cancer is still nascent. The current study explored the association between the high-risk HPVs and EBV and tumor phenotype in colorectal cancers (CRCs) in the Qatari population. We found that high-risk HPVs and EBV are present in 69/100 and 21/100 cases, respectively. Additionally, 17% of the cases showed a copresence of high-risk HPVs and EBV, with a significant correlation only between the HPV45 subtype and EBV (p = .004). While the copresence did not significantly associate with clinicopathological characteristics, we identified that coinfection with more than two subtypes of HPV is a strong predictor of advanced stage CRC, and the confounding effect of the copresence of EBV in such cases strengthens this association. Our results indicate that high-risk HPVs and EBV can co-present in human CRCs in the Qatari population where they could plausibly play a specific role in human colorectal carcinogenesis. However, future studies are essential to confirm their copresence and synergistic role in developing CRCs.

High-risk human papillomaviruses (HPVs) are considered risk factors in the origin of several human malignancies, such as breast, cervical, head and neck, as well as colorectal cancers. However, there are no data reported on the HPV status in colorectal cancer in the State of Qatar. Therefore, we herein examined the presence of high-risk HPVs (16, 18, 31, 33, 35, 45, 51, 52, and 59), using polymerase chain reaction (PCR) in a cohort of 100 Qatari colorectal cancer patients, and their association with tumor phenotype. We found that high-risk HPV types 16, 18, 31, 35, 45, 51, 52, and 59 were present in 4, 36, 14, 5, 14, 6, 41, and 17% of our samples, respectively. Overall, 69 (69%) of the 100 samples were HPV positive; among these, 34/100 (34%) were positive for single HPV subtypes, while 35/100 (35%) of the samples were positive for two or more HPV subtypes. No significant association was noted between the presence of HPV and tumor grade, stage, or location. However, the presence of coinfection of HPV subtypes strongly correlated with advanced stage (stage 3 and 4) colorectal cancer, indicating that the copresence of more than one HPV subtype can significantly worsen the prognosis of colorectal cancer. The results from this study imply that coinfection with high-risk HPV subtypes is associated with the development of colorectal cancer in the Qatari population.

Objective: Sacrococcygeal teratoma is an extragonadal germ cell tumor that develops during fetal and neonatal periods and is associated with significant perinatal morbidity and even mortality. This study aimed to determine the clinicopathologic characteristics, the clinical outcomes, and postoperative complications of sacrococcygeal teratoma cases in the low-volume pediatric surgery service in a developing country. Materials and Methods: The study included data from all sacrococcygeal teratoma cases diagnosed from 2011 to 2020. All the relevant clinicopathologic data were recorded and analyzed. Results: A total of 7 pediatric (5 females and 2 males) patients with sacrococcygeal teratoma were identified, ranging in age from 3 to 222 days. A prenatal diagnosis was made in 57.1% of cases. The mean gestational age for all cases was 37.1 weeks (34-38 weeks), and the mean birth weight was 3285 g (range, 2300-4700 g). Preoperative alpha-fetoprotein levels had a mean value of 24.327 ng/mL (range, 649.7-110.600 ng/mL). The surgery involved resection of the primary tumor and coccygectomy in all cases. Three (42.9%) tumors were classified as Altman type II lesions, 2 (28.6%) tumors were type IV, and 2 remaining cases were types I and III, respectively. Histology was benign in 4 (57.1%) and immature in 3 patients (42.9%). The mean follow-up time was 101.4 months (30-146 months), with 2 recurrences of high-grade immature teratomas at 11 and 30 months following the surgery. Three patients had postoperative bladder and rectal dysfunctions. Conclusion: Sacrococcygeal teratomas are rare tumors associated with frequent postoperative dysfunctions. Recurrences may also be seen, particularly in immature, high-grade forms of sacrococcygeal teratomas.

Antibody-drug conjugates (ADCs) are novel, highly potent drugs composed of a small molecule of an anticancer drug (payload)attached to humanized antibody recognizing an epitope on the surface of cancer cells. ADCs are rapidly expanding in the oncology field. By 2022, >180 ADC-based clinical trials have been conducted [1]. Most of these clinical trials are in phases I or II [1]. Several ADCs have been approved and used for the treatment of various malignancies (e.g., brentuximab vedotin (BV) for the treatment of CD30+ lymphomas, trastuzumab emtansine (T-DM1) for advanced/metastatic/or early-stage high-risk HER2-positive breast cancer with residual disease after neoadjuvant treatment) [2]. Read more in the PDF.

Abstract Global brachial plexus injury (GBPI) mainly affects adults and causes severe life-changing consequences that lead to the deterioration of patients’ quality of life. Several surgical approaches have been described and reported in the literature to improve patients’ functional ability. A literature review is done on PubMed/MEDLINE and Embase using specific keywords to retrieve relevant articles assessing different surgical approaches for GBPI management. Inclusion and exclusion criteria were applied, and eligible articles were included in the review. The literature survey revealed that various surgical options had been used to manage GBPI patients. In this concise review, we discuss and compare the different surgical approaches related to GBPI and its outcome in terms of restoring elbow flexion and extension, shoulder abduction, and wrist and hand function. The primary surgical intervention relies mainly on transferring single or multiple nerves with/without nerve grafts to restore the function of the targeted muscle. Different techniques using a variety of nerve donors and recipients are compared to assess the functional outcomes of each option. Moreover, further options are addressed for delayed GBPI injuries or failed nerve transfer procedures, as in free functional muscle transfer techniques. In addition, information about brachial plexus injury cases faced in our center is presented along with our center’s approach to diagnosing and managing partial and GBPI cases.

The acute scrotum (AS) in the pediatric population is a medical emergency. AS is usually caused by testicular torsion (TT) and torsion of the appendix testis (TAT). The current study explored which demographic and clinical characteristics can help distinguish between TT and TAT. We analyzed all children ≤16 years who underwent surgical exploration for AS. The patients were divided into Group 1/TT and Group 2/TAT. Ninety patients were included in the study (24 with TT and 66 with TAT). The peak incidence of TT was significantly higher than in the TAT group (p<0.001). Scrotal pain was more prevalent in the TAT group (p=0.02), whereas systemic signs (nausea/vomiting and abdominal pain) affected more frequently the TT patients (p=0.003 and p<0.001, respectively). The duration of symptoms was significantly longer in the TAT group (p<0.001). The duration of symptoms in the TT cohort significantly impacted the testicular salvage (p=0.008). Color Doppler ultrasound (CDUS) findings of absent/decreased testicular blood flow in the affected testis strongly favored the diagnosis of TT (p<0.001). The older age, shorter duration of symptoms, systemic signs, and CDUS findings can help distinguish between the two most common acute scrotum causes.

From February 2023 (Volume 23, Issue 1), the title of the Bosnian Journal of Basic Medical Sciences will be changed to Biomolecules and Biomedicine. The new title reflects the increasing number of published research done on subcellular/molecular level as well as translational and clinical research contained in the term Biomedicine. Biomolecules and Biomedicine will continue to be published by the Association of Basic Medical Sciences of the Federation of Bosnia and Herzegovina. Read more in the PDF.