The exact cause of breast cancer is unknown; it is a multifactorial disease. It is the most diagnosed and the second killer cancer among women. Breast cancer can be originated from tissues of breast or secondary from other organs via metastasis. Generally, cancer cells show aberrant metabolism and oxidative stress when compared to noncancerous tissues of breast cancer patients. The current study aims at evaluating glutamate and glucose metabolism through GDH and LDH enzyme activities, oxidant, and antioxidative status among breast cancer patients attending referral hospitals of Addis Ababa, Ethiopia. Result. Catalytic activities of glutamate dehydrogenase, lactate dehydrogenase, and oxidative stress index were significantly increased in both serum (4.2 mU/ml, 78.6 mU/ml, and 3.3 : 1, resp.) and cancerous tissues (1.4 mU/ml, 111.7 mU/ml, and 2.15 : 1, resp.) of breast cancer patients as compared to those in serum of control group (3.15 mU/ml, 30.4 mU/ml, and 2.05 : 1, resp.) and noncancerous tissues of breast cancer patients (0.92 mU/ml, 70.5 mU/ml, and 1.1 : 1, resp.) (P ≤ 0.05). Correspondingly, ratios of reduced to oxidized glutathione were significantly decreased in both serum (20 : 1) and cancerous tissues (23.5 : 1) of breast cancer patients when compared to those in serum of control group (104.5 : 1) and noncancerous tissues of breast cancer patients (70.9 : 1) (P ≤ 0.05). Conclusion. Catalytic activities of GDH and LDH, ratios of GSH to GSSG, and concentration of TOS among breast cancer patients were significantly higher than were those among control group and noncancerous tissues of breast cancer patients, while TAC of breast cancer patients is significantly lower than that of control group and normal tissues of breast cancer patients.

The main objective of structural biology is to model proteins and other biological macromolecules and link the structural information to function and dynamics. The biological functions of protein molecules and nucleic acids are inherently dependent on their conformational dynamics. Imaging of individual molecules and their dynamic characteristics is an ample source of knowledge that brings new insights about mechanisms of action. The atomic-resolution structural information on most of the biomolecules has been solved by biophysical techniques; either by X-ray diffraction in single crystals or by nuclear magnetic resonance (NMR) spectroscopy in solution. Cryo-electron microscopy (cryo-EM) is emerging as a new tool for analysis of a larger macromolecule that couldn’t be solved by X-ray crystallography or NMR. Now a day’s low-resolution Cryo-EM is used in combination with either X-ray crystallography or NMR. The present review intends to provide updated information on applications like X-ray crystallography, cryo-EM and NMR which can be used independently and/or together in solving structures of biological macromolecules for our full comprehension of their biological mechanisms.

Background: Ensuring optimal oral hygiene is crucial for preserving the well-being of hard and soft tissues within the oral system. A lack of proper oral hygiene can have a detrimental impact on an individual’s health, leading to conditions such as caries and periodontitis. Therefore, this study investigated the association between the knowledge and practices of older patients in oral hygiene in Addis Ababa, Ethiopia. Methods: A facility-based cross-sectional study was carried out on 111 older patients who presented at purposively selected dental clinics in Addis Ababa. A convenience sampling method was used to recruit study participants. The data were collected using a pretested structured questionnaire. The questionnaire included information related to the patient’s knowledge and practices related to oral hygiene. The data were analyzed using SPSS version 23. Descriptive statistics were used to analyze the data. Multivariate logistic regression was performed to investigate the associations between independent and dependent variables. Adjusted odds ratios with 95% confidence intervals (95% CIs) were estimated, and variables with a p value < 0.05 in the multivariate analysis were considered significant. Results: The median age of the study participants was 70.31 years (65–100). Inadequate oral hygiene knowledge was found in 53.15% of the participants, while more than three-quarters (83.78%) of the older participants practiced poor oral hygiene. Older patients with good oral hygiene knowledge were 7.6 times more likely to practice good oral hygiene practices (AOR, 7.6; 95% CI (2.05–27.9)). Conclusions: Poor oral health is significantly associated with various health problems, particularly in older people. This study examined the relationship between oral health knowledge and practices in older dental patients and revealed insufficient knowledge and practices among participants. The results showed a notable link between oral health knowledge and practices in this demographic group, highlighting the need for support to improve oral health status. Organizations should increase awareness among older patients to improve their oral health status.

Introduction: Cardiovascular disease (CVD) is the foremost killer disease worldwide. ASCVD is one of the most common types of CVD. It is mainly associated with a condition called atherosclerosis. Its occurrence is linked to several risk factors. Hypertension, diabetes, dyslipidemia, smoking, genetic factors, and so on are examples. The presence of ASCVD, as well as its risk factors, causes a variety of disruptions in the body’s physiological and biological functions. The presence of abnormal physiological and biological functions, for example, tends to disrupt hematological parameters. Purpose: The study’s aim was to assess and compare the pattern of hematological parameters in people with established atherosclerotic cardiovascular disease (ASVD) versus people with ASCVD risks alone who attended TASH Addis Ababa, Ethiopia, as well as to correlate hematological parameters with the novel inflammatory marker hs-CRP. Methods: A prospective cross-sectional comparative study with 100 study participants was conducted during where October 2019-March 2020 proposal development, sample collection, and lab analysis period, and from March 2020-June to 2021 data entry, analysis, and writing period. A serum sample was collected from each study participant for the lipid and hsCRP analyses and whole blood for hematological parameter determination. The socio-demographic characteristics of the study participants were obtained through a well-structured questionnaire. Results: The ASCVD-risk group had significantly higher mean platelet volume (MPV), which was associated with the presence of the risk. Furthermore, hs-CRPs show a significant correlation with MPV in a correlation analysis of highly sensitive C-reactive protein (hs-CRP) with hematological parameters. Thus, using these affordable, routinely tested, and easily available tests may help to infer future ASCVD risk as well as the presence of ASCVD morbidity while hsCRP level in comparison group vs cases requires further study.

Although it was traditionally believed that gluconeogenesis enzymes were absent from cancers that did not originate in gluconeogenic organs, numerous investigations have shown that they are functionally expressed in a variety of tumors as mediators of shortened forms of Gluconeogenesis. One of the isomers of PEPCK, the first-rate limiting enzyme in gluconeogenesis, is PCK 1, which catalyzes the conversion of oxaloacetate (OAA) and GTP into PEP, CO2, and GDP. It is also known as PEPCK-C or PCK1, and it is cytosolic. Despite being paradoxical, it has been demonstrated that, in addition to its enzymatic role in normal metabolism, this enzyme also plays a role in tumors that arise in gluconeogenic and non-gluconeogenic organs. According to newly available research, it has metabolic and non-metabolic roles in tumor progression and development. Thus, this review will give insight into PCK1 relationship, function, and mechanism in or with different types of cancer using contemporary findings.

Cancer immunotherapy has transformed oncology by enabling targeted activation of antitumor immune responses in patients with relapsed or refractory malignancies. Among adoptive cell transfer (ACT) strategies, chimeric antigen receptor T-cell (CAR-T) therapy has emerged as a pivotal therapeutic advancement, genetically redirecting T lymphocytes to recognize tumor-associated antigens independently of major histocompatibility complex (MHC) presentation. This review provides a comprehensive overview of the biological principles, design evolution, manufacturing platforms, clinical applications, resistance mechanisms, toxicities, and future directions of CAR-T cell therapy within cancer immunotherapy. Specifically, we examine the evolution of CAR architecture, spanning from first-generation constructs to advanced armored and fifth-generation platforms. Furthermore, we compare viral and non-viral gene delivery systems and discuss emerging approaches such as in vivo CAR engineering, allogeneic "off-the-shelf" products, logic-gated receptors, safety switches, and alternative immune-cell platforms, including natural killer (NK) cells and macrophages. CAR-T cell therapy has achieved its most profound clinical success in hematological malignancies, particularly in cluster of differentiation 19 (CD19)-positive B-cell acute lymphoblastic leukemia and B-cell non-Hodgkin lymphoma, reporting durable remission rates of approximately 60–90% in specific clinical contexts. However, broader clinical translation, particularly in solid tumors, remains constrained by challenges such as cytokine release syndrome (CRS), immune effector cell-associated neurotoxicity syndrome (ICANS), antigen escape, tumor heterogeneity, poor trafficking, limited persistence, high manufacturing costs, and the immunosuppressive tumor microenvironment (TME). While next-generation strategies—including clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR/Cas9)-mediated editing, lipid nanoparticle (LNP)-based messenger ribonucleic acid (mRNA) delivery, bispecific CARs, and inducible suicide switches—hold promise for improving safety, specificity, scalability, and accessibility, a significant number remain in preclinical or early-phase clinical development. Overall, CAR-T cell therapy represents a transformative "living drug" platform in oncology; however, its broader clinical utility is contingent upon improving durability, reducing toxicity, overcoming solid-tumor barriers, and validating next-generation technologies through robust, long-term clinical studies.