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Background: Chromosomal microarray (CMA) is commonly utilized in the obstetrics setting. CMA is recommended when one or more fetal structural abnormalities is identified. CMA is also commonly used to determine genetic etiologies for miscarriages, fetal demise, and confirming positive prenatal cell-free DNA screening results., Methods: In this study, we retrospectively examined 523 prenatal and 319 products-of-conception (POC) CMA cases tested at Nationwide Children's Hospital from 2011 to 2020. We reviewed the referral indications, the diagnostic yield, and the reported copy number variants (CNV) findings., Results: In our cohort, the diagnostic yield of clinically significant CNV findings for prenatal testing was 7.8% (n = 41/523) compared to POC testing (16.3%, n = 52/319). Abnormal ultrasound findings were the most common indication present in 81% of prenatal samples. Intrauterine fetal demise was the common indication identified in POC samples. The most common pathogenic finding observed in all samples was isolated trisomy 21, detected in seven samples., Conclusion: Our CMA study supports the clinical utility of prenatal CMA for clinical management and identifying genetic etiology in POC arrays. In addition, it provides insight to the spectrum of prenatal and POC CMA results as detected in an academic hospital clinical laboratory setting that serves as a reference laboratory., (© 2023 The Authors. Molecular Genetics & Genomic Medicine published by Wiley Periodicals LLC.)

Background: Over the years, epidemiological surveys have established that the five leading cancers in Africa (in descending order of prevalence) are cancers of the breast, cervix, prostate, liver, and colorectum. [1] However, a 10-year retrospective review of cases performed at the University of Ilorin Teaching Hospital (UITH) revealed some changes in the cancer incidence pattern in this region., Aims: The aim of the study was to determine the distribution of cancers managed at the UITH, a tertiary health care center in North Central Nigeria, in the past 10 years and create awareness of changing cancer prevalence patterns in this region., Materials and Method: This was a retrospective review of cancer epidemiology at UITH over a period of 10 years. Confirmed cancer cases within this period were extracted from the data in the Department of Anatomic Pathology and the Cancer registry. Descriptive and inferential statistics were applied to obtain rates and proportions for both sexes., Results: There were 2430 confirmed cases of cancer during the study period from January 2011 to December 2020. Out of these cases, 1310 (54%) were seen in females and 1120 (46%) were seen in males. The most common cancer recorded (in total) was prostate cancer, which accounted for 18% of all cases, constituting approximately one in six of all cancer cases. This was followed closely by breast cancer (16.6%). The most commonly diagnosed cancer in males was prostate cancer (four in ten cancer cases in males), whereas in females, it was breast cancer (approximately three in ten cancer cases in females). Cancers of the lungs and liver were rare in both sexes in this study. In children, the most common malignancies were retinoblastoma (38.3%), non-Hodgkin lymphomas (16.8%), and nephroblastoma (12.8%)., Conclusion: There is a changing trend in cancer cases with some cancer cases now predominating compared to previous years. This may be because of increased awareness and/or better medical screening and diagnostic techniques., Competing Interests: None

Introduction: Death and the dying experience are common phenomena in all clinical settings. Death and the dying presents physical and emotional strain on the dying patient, his relations and professional caregivers., Objective: The study therefore assessed the sociodemographic determinants of nurses' attitudes towards death and caring for dying patient., Method: A cross-sectional design was used to study 213 randomly selected nurses, working in one of the tier one teaching hospital in Nigeria. Attitude towards death and the dying was collected with Frommelt Attitude Care of the Dying and Death Attitude Profit-Revised questionnaire. The data collected was analysed with SPSS version 20 and inferential analyses were considered statistically significant at p < 0.05., Results: The study revealed that most of the nurses had negative attitudes toward the concept of death (76.5%) and caring for dying patient (68%). Furthermore, a chi-square test revealed significant associations between the nurses' years of working experience (χ 2  = 24.57, p <.00) and current unit of practice (χ 2  = 21.464; p = .002) and their attitude towards caring for the dying patient. Also, nurses' age (χ 2  = 13.77, p = .032), professional qualifications (χ 2  = 13.774, p = .008), and current ward of practice (χ 2  = 16.505, p = .011) were significantly associated with their attitudes to death. Furthermore, the study observed a significant association between nurses' attitudes to death and caring for the dying patient (χ 2  = 11.26, p < 0.01)., Conclusion: This study concluded that nurses had negative attitudes towards death and dying and therefore prescribes, as part of continuing professional development strategy, the need for requisite positive value - laden, ethnoreligious specific education regarding end of life care., Competing Interests: Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2021.)

TP53 wild-type breast tumors rarely undergo a complete pathological response after chemotherapy treatment. These patients have an extremely poor survival rate and studies show these tumors preferentially undergo senescence instead of apoptosis. These senescent cells persist after chemotherapy and secrete cytokines and chemokines comprising the senescence associated secretory phenotype, which promotes survival, proliferation, and metastasis. We hypothesized that eliminating senescent tumor cells would improve chemotherapy response and extend survival. Previous studies have shown "senolytic" agents selectively kill senescent normal cells, but their efficacy in killing chemotherapy-induced senescent cancer cells is unknown. We show that ABT-263, a BH3 mimetic that targets antiapoptotic proteins BCL2/BCL-XL/BCL-W, had no effect on proliferating cells, but rapidly and selectively induced apoptosis in a subset of chemotherapy-treated cancer cells, though sensitivity required days to develop. Low NOXA expression conferred resistance to ABT-263 in some cells, necessitating additional MCL1 inhibition. Gene editing confirmed breast cancer cells relied on BCL-XL or BCL-XL/MCL1 for survival in senescence. In a mouse model of breast cancer, ABT-263 treatment following chemotherapy led to apoptosis, greater tumor regression, and longer survival. Our results reveal cancer cells that have survived chemotherapy by entering senescence can be eliminated using BH3 mimetic drugs that target BCL-XL or BCL-XL/MCL1. These drugs could help minimize residual disease and extend survival in breast cancer patients that otherwise have a poor prognosis and are most in need of improved therapies.

In chemotherapy-treated breast cancer, wild-type p53 preferentially induces senescence over apoptosis, resulting in a persisting cell population constituting residual disease that drives relapse and poor patient survival via the senescence-associated secretory phenotype. Understanding the properties of tumor cells that allow survival after chemotherapy treatment is paramount. Using time-lapse and confocal microscopy to observe interactions of cells in treated tumors, we show here that chemotherapy-induced senescent cells frequently engulf both neighboring senescent or nonsenescent tumor cells at a remarkable frequency. Engulfed cells are processed through the lysosome and broken down, and cells that have engulfed others obtain a survival advantage. Gene expression analysis showed a marked up-regulation of conserved macrophage-like program of engulfment in chemotherapy-induced senescent cell lines and tumors. Our data suggest compelling explanations for how senescent cells persist in dormancy, how they manage the metabolically expensive process of cytokine production that drives relapse in those tumors that respond the worst, and a function for their expanded lysosomal compartment., (© 2019 Tonnessen-Murray et al.)

Background: Caregivers of the elderly with chronic illnesses are exposed to the burden associated with their caregiving activities. This study described the lived experience of caregivers of older adults in Nigeria., Methods: A qualitative design guided by interpretive phenomenology informed the design of the research, whereby 15 in-depth interviews were conducted with caregivers of older adults with chronic illnesses. The interview sessions were audiotaped and transcribed verbatim and analysed using constant comparison analysis method., Results: Fifteen caregivers, from different parts of Osun State, Nigeria, took part in the in-depth interviews. The caregivers were aged between 19 and 70 years, ten were women, five of them had secondary education, seven were self-employed and six were in a spousal relationship. The study uncovered four interrelated themes with explanatory subthemes-commitment to preservation of life (managing challenges associated with daily routine, problem with mobility, bathing and grooming, feeding, and problem with hygiene) (ii) denial (refusal to accept that burden exists), other things suffer (disruption of family process, suffering from poor health and social isolation), (iv) reciprocity of care (pride in caregiving, caregiving as a necessity and not by choice, and law of karma)., Conclusion: This study provides insight into the burden of care of older adults with chronic illness. Caregivers' commitment to preserving life makes them provide assistance whose performance even run contrary to their own wellbeing. Intervention programme should be designed to support the caregivers thereby improving their wellbeing., (Copyright © 2019 The Authors. Published by Elsevier B.V. All rights reserved.)

Family members play key roles in the care of older adults with chronic illness. However, little is known about the negative consequences of caregiving in Sub-Sahara Africa. The current study examined the influence of caregivers' burden and coping ability on the health-related quality of life of caregivers of older adults with chronic illness. An exploratory sequential mixed methods study was conducted among 16 family members. Findings showed that caregivers experienced severe burden, coped moderately with the burden, and had poor quality of life. Furthermore, directed content analysis of the in-depth interviews uncovered six major themes: (a) Being Pulled in Opposite Directions, (b) Experiencing Poor Health, (c) Receiving Support From Family and Friends, (d) Turning to God for Help, (e) Seeking Relief for Aching Bodies, and (f) Seeking Remedies for Sleeplessness. The current findings may have implications for designing programs that aim to improve the well-being of caregivers. [Journal of Gerontological Nursing, 45(1), 39-46.]., (Copyright 2019, SLACK Incorporated.)

Aim: Caring for older adults with chronic illness is associated with enormous physical and psychological stress on the informal caregivers. This study assessed burden experienced by caregivers of older adults with chronic illness, explored coping strategies of caregivers in relation to identified chronic conditions and determined the influence of caregiver's burden, caregiver's characteristics and older adult's characteristics on their coping ability., Method: This is a cross-sectional, correlational study, and data were collected among 325 caregivers of older adults living with chronic illness in Osun State, Nigeria, using a checklist, Katz IADL, Zarit Burden Interview and Brief Cope Scale. Data were analysed using descriptive and inferential statistics., Findings: Results revealed that the age of the caregivers ranged between 19 and 70 years with a mean of 47.79 (±11.94). They were caring for older adults with heart diseases (47.7%), kidney diseases (8.0%), cancer (10.2%), gastrointestinal disorders (5.5%), stroke (18.5%), diabetes mellitus (10.2%) who had partial (60.9%) to total level of dependency (39.1%). Over 59% of caregivers experienced severe burden, which is associated with religion (p < 0.001). Coping strategies used include religion (7.37 ± 0.85), planning (6.70 ± 0.89), positive reframing (6.42 ± 1.01) and emotion-focused coping (29.97 ± 3.30), which was the most used coping domain. Caregiver's burden was a predictor of emotion-focused (β = -0.16), problem-focused (β = -0.15), dysfunctional (β = -0.14) and the total coping score (β = -0.48). In addition, religion predicted emotion-focused coping (β = 0.69)., Conclusion: This study concluded that caregiving activities impose a severe burden on the caregivers. Religion was the most used, and coping ability is predicted by burden and religion. Therefore, healthcare providers should consider interventions to promote the use of effective coping skills., (© 2018 Nordic College of Caring Science.)

Background: This study investigated the impact of caregivers' burden on health-related quality of life (HRQoL) among the caregivers of older adults, and tested the predictive effect of burden and socio-demographic factors on HRQoL., Methods: The study employed a cross-sectional design. Three hundred and twenty-five caregivers of older adults with chronic illness were purposively selected. Data were collected using the Zarit Burden Interview and Short Form (SF-36) Health Survey. Data were analyzed descriptively and inferentially., Results: Findings revealed that 59.1% of caregivers experienced severe burden. In measuring the HQRoL, respondents performed poorly in seven domains: Role limitation due to emotional problems (19.69 ± 9.46), Energy/fatigue (43.47 ± 16.46), Emotional well-being, (45.83 ± 13.93), Social functioning (49.09 ± 18.46), Role limitation due to physical function (43.33 ± 10.15), Physical functioning (43.6 ± 18.73), and General health (37.31 ± 12.09). Respondents, however, showed a higher score in the pain domain (56.77 ± 35.79). Furthermore, findings revealed a positive correlation between caregivers' burden and General health (r = 0.342), Emotional well-being (r = 0.222), and Physical functioning (r = 0.083). Similarly, there is a negative correlation between caregivers' burden and Social functioning (r = -0.618), Role limitation due to physical activities (r = 0.459), Role limitation due to emotional well-being (r = -0.530), and Energy/fatigue domains (r = -0.509). In addition, burden of caregiving (β=-3.142119, p = 0.000) and age (β=0.612752, p = 0.011) are predictors of the quality of life of caregivers., Discussion: This study concluded that there is a high prevalence of caregivers' burden resulting in poor HQRoL. In addition, burden and age are predictors of the quality of life of caregivers.

Introduction: Diagnosis of prostatic diseases with Immunohistochemistry still faces challenges because of the peculiar histology of the prostate and difference(s) in reactivity of Monoclonal antibodies (MoAb) to benign and malignant changes., Methods: Thirty (30) archived paraffin embedded tissue samples from primary prostate tumors (15 Benign Prostatic Hyperplasia (BPH) and 15 Cancer of the prostate (CaP)) were sectioned at thickness of 5 µm and confirmed as BPH or CaP. Sections from each sample were stained by Immunohistochemistry using the Streptavidin-biotin method and using CK5/6, CK7, CK8,CK20 and Ki67 antibodies (Zymed Antibody products). Appropriate positive and negative controls for each antibody were setup alongside the test slides., Results: BPH samples were reactive to Ck5/6 (93.3%), Ck7 (80%) and Ck8 (100%). Only 13.3% of BPH samples were reactive to Ki67. The reactivity of Ck5/6, 7, 8 in CaP is a contrast with only 3(20%) of samples positive with Ck5/6, 2(13.3%) positive with Ck7 and 14(93.3%) with Ck8. While reactivity of Ck 8 is similar in BPH and CaP, no reaction was recorded in Ck 20 in both BPH and CaP. Ki67 was only reactive in 2(13.3) of BPH samples and 15(100%) of CaP. Only Ck 8 was expressed in both BPH and CaP. There was co-expression of Ck5/6, 7,8 and Ki67 in 13.3%; Ck7 and Ki67 in 13.3% in both BPH and CaP., Conclusion: The various cytokeratins are individually expressed in both BPH and CaP. Ck5/6 and Ck7 are co-expressed and may be used in the diagnosis of BPH, Ck5/6,7,8 and Ki67 are co-expressed in Prostatic adenocarcinoma and squamous cell carcinoma of the prostate while Ck8 and Ki67 are co-expressed and may be used for diagnosis of Prostatic adenocarcinoma alone.