Epithelial Abnormalities Research Articles

Oocyte cumulus complex quality and oviduct transportation velocity in systemic autoimmune disease model mice.

Oocyte transportation by the oviduct involves the interaction between ciliated epithelial cells and cumulus cells. To determine whether the quality of cumulus-oocyte complexes (COCs) changes the transportation property of COCs, we compared the transportation velocity of COCs (TVC) by the infundibulum ex vivo with various combinations of infundibula and COCs collected from different mice. We used young and aged C57BL/6N and MRL/MpJ, and MRL/MpJ-Faslpr/lpr mice as the strains with intact female reproductive function and the systemic autoimmune disease model exhibiting oocyte pick-up dysfunction owing to the morphofunctional abnormality of ciliated epithelium, respectively. The TVC of aged MRL strains was less than that of aged C57BL/6N mice, suggesting that aging affects the transportation of COCs in MRL strains. The TVC of aged MRL/MpJ-Faslpr/lpr mice was the least among all examined combinations, whereas the TVC accelerated when the infundibulum or COCs were collected from other strains. These results indicate that the transportation property of COCs is determined not only by the ciliary function in the infundibulum but also by the properties of COCs.

High-Grade Serous Carcinoma at Risk-Reducing Salpingo-Oophorectomy in Asymptomatic Carriers of BRCA1/2 Pathogenic Variants: Prevalence and Clinical Factors.

To investigate the prevalence of and clinical factors associated with high-grade serous carcinoma (HGSC) at risk-reducing salpingo-oophorectomy (RRSO) in asymptomatic BRCA1/2-pathogenic variant (PV) carriers. We included BRCA1/2-PV carriers who underwent RRSO between 1995 and 2018 from the Hereditary Breast and Ovarian cancer in the Netherlands study. All pathology reports were screened, and histopathology reviews were performed for RRSO specimens with epithelial abnormalities or where HGSC developed after normal RRSO. We then compared clinical characteristics, including parity and oral contraceptive pill (OCP) use, for women with and without HGSC at RRSO. Of the 2,557 included women, 1,624 had BRCA1, 930 had BRCA2, and three had both BRCA1/2-PV. The median age at RRSO was 43.0 years (range: 25.3-73.8) for BRCA1-PV and 46.8 years (27.6-77.9) for BRCA2-PV carriers. Histopathologic review confirmed 28 of 29 HGSCs and two further HGSCs from among 20 apparently normal RRSO specimens. Thus, 24 (1.5%) BRCA1-PV and 6 (0.6%) BRCA2-PV carriers had HGSC at RRSO, with the fallopian tube identified as the primary site in 73%. The prevalence of HGSC in women who underwent RRSO at the recommended age was 0.4%. Among BRCA1/2-PV carriers, older age at RRSO increased the risk of HGSC and long-term OCP use was protective. We detected HGSC in 1.5% (BRCA1-PV) and 0.6% (BRCA2-PV) of RRSO specimens from asymptomatic BRCA1/2-PV carriers. Consistent with the fallopian tube hypothesis, we found most lesions in the fallopian tube. Our results highlight the importance of timely RRSO with total removal and assessment of the fallopian tubes and show the protective effects of long-term OCP.

Retinal Pigment Epithelial Abnormality and Choroidal Large Vascular Flow Imbalance Are Associated with Choriocapillaris Flow Deficits in Age-Related Macular Degeneration in Fellow Eyes

Choriocapillaris flow deficits detected on optical coherence tomography angiographs were retrospectively analyzed. In 38 age-related macular degeneration (AMD) fellow eyes, without fundus findings (26 men, 71.7 ± 1.9 years old), and 22 control eyes (11 men, 69.4 ± 1.8), the choriocapillaris flow area (CCFA) ratio and coefficient of variation (CV) of the CCFA ratio (which represented the heterogeneity of the ratio), negatively and positively correlated with age (all p < 0.01), respectively. Moreover, the respective mean values were lower (p = 0.0031) and greater (p = 0.002) in AMD fellow eyes than in the control eyes. The high-risk condition of AMD fellow eyes was defined by a CCFA ratio <58.5%, and the CV of the CCFA ratio ≥0.165 (odds ratio (OR), 5.408; 95% confidence interval (CI): 1.117-21.118, p = 0.035, after adjusting for age and sex) was related to the presence of fundus autofluorescence abnormality (OR, 16.440; 95% CI, 1.262-214.240; p = 0.033) and asymmetrically dilated choroidal large vasculature (OR, 4.176; 95% CI, 1.057-16.503; p = 0.042), after adjusting for age and sex. The presence of fundus autofluorescence abnormality indicated a retinal pigment epithelium (RPE) abnormality. The RPE volume was reduced in the latter eye group, particularly in the thinner choroidal vasculature. In addition to aging, RPE abnormality and choroidal large vascular flow imbalances were associated with exacerbated heterogeneous choriocapillaris flow deficits in AMD fellow eyes without macular neovascularization.

Formulation and Standardization of Herbal Cream for Acne Vulgaris

At some point in their lives, everyone develops acne, pimples, sunburn scars, and pigmentation. In order to treat their skin issues and provide them a good, healthy complexion, customers have started shopping for goods like anti-acne cream. However, the majority of anti-acne creams on the market are loaded with ingredients to which some people may have an adverse reaction. Using two gram-positive bacteria (Staphylococcus aureus and Bacillus cereus) and two gram-negative bacteria, the extract and cream's antibacterial activities were tested using the disc diffusion method (Escherichia coli and Salmonella enterica). The bactericidal effects of the extract were investigated at dosages of 5, 10, and 25 mg/ml. The extract's antibacterial properties were incredibly ineffectual against all investigated species. As soon as the extract was added to the cream's recipe at Concentrations of 10, 25, and 50 successfully maintained this activity. After two months, the cream's formulation remained the same. After clinical and toxicology testing are complete, this cream formulation can be successfully utilised to treat skin infections, including acne vulgaris. The primary pathogenic factors include androgen-stimulated stimulation of sebaceous gland secretion, hyperkeratinization, abnormal infundibular epithelium keratinization that blocks sebaceous follicles, and Propionibacterium acnes colonisation of the pilosebaceous unit, which causes inflammation around the sebaceous follicles. The common formulations that are already on the market typically have a variety of unfavourable consequences, including poor patient compliance, skin irritation, dryness, peeling, and itching, as well as decreased therapeutic efficiency. A skin condition called acne vulgaris will almost certainly affect everyone at some point in their lives. Herbal therapies are thought to be safer than allopathic ones because they are less likely to have adverse effects such contact allergies, localised irritation, scaling, photosensitivity, itching, pruritus, skin peeling, etc. This study showed that a variety of herbal extracts had anti-acne properties. The cream's recipe included a sizeable amount of poly herbal extract. An in vitro method of measuring antibacterial activity was used to test the anti-acne effects of the suggested formulation (broth dilution method and sub culturing method). Using the skin feel test, the spreadability, greasiness, tackiness, film-forming, softening, soothing, and pleasantness of cream were evaluated. The outcomes demonstrated that the formula chosen also possessed potent anti-acne properties. As a result, we might encourage more in-vivo research and testing on items that are already on the market. Acne is a pilosebaceous-related skin condition that is continuously inflammatory. This condition is widespread and affects 85% of youngsters worldwide. Acne's disfiguring dermatosis might significantly lessen emotional discomfort by weakening self-confidence. Available as topical and systemic therapy for treating acne are comedolytic medicines, antibiotics, and many anti-inflammatory medications. Because of the undesirable side effects, frequently high cost, and antibiotic resistance in acne-causing bacteria, the need for medicinal plants has been gradually rising. This review provides the most recent information on medicinal plants and the phytoconstituents used to treat acne. The most popular anti-acne drugs, like as retinoids, systemic and topical antibiotics, and hormones, have a number of dangerous side effects. According to the literature, Calendula officinalis, Rosa canina, Zataria multiflora, Trigonal foeman graecum, and Glycine max all have antibacterial, anti-inflammatory, and antioxidant qualities that could be used to treat the disease's inflamed sores. Before making changes, a standard washing cream recipe containing bees wax, spermaceti, borax, liquid paraffin, and water was considered.

Pattern and predictors of cervical epithelial cell abnormalities among unscreened and under-screened women in Lagos, Nigeria: a cross-sectional study.

Women who had never undergone cervical screening (CS) or who have infrequent CS are at increased risk of having cervical epithelial cell abnormalities (CECA) that may lead to cervical cancer (CCa). Our study determined the pattern and factors that predict the occurrence of CECA among unscreened and under-screened women in Lagos, Nigeria. This was an analytical cross-sectional study among 256 consenting sexually active women between 21 and 65 years who attended a community CS programme in Surulere, Lagos, Nigeria, in June 2019. Information on socio-demographic, reproductive, sexual, behavioural and clinical characteristics were collected and a Pap smear test was done. Women with abnormal cervical cytology were followed up and given appropriate treatment. Data analysis was done using Statistical Package for Social Sciences version 23. Descriptive statistics were computed using frequencies and association was tested using odd ratio. The participants' mean age was 42.7 ± 10.3 years, majority were married (79.9%) and were human immune deficiency syndrome (HIV) negative (63.1%). The prevalence of CECA was 9.8%. Atypical squamous cell of undetermined significance and atypical squamous cell cannot exclude high-grade squamous intraepithelial lesion were the most common CECA with prevalence rates of 7.4% and 2.0%, respectively. Having a partner with multiple sexual partners (adjusted odd ratio (AOR) = 19.23), being HIV positive (AOR = 25.61), giving birth for the first time before the age of 26 years (AOR = 5.55) and presence of a combination of either abnormal vaginal discharge, contact bleeding or an unhealthy cervix on clinical examination (AOR = 13.65) independently predicted the occurrence of CECA. There is a need to prioritise CS for women with these risk factors to prevent CCa and reduce the burden of the disease in our environment.

Ten-year follow-up and sequential evaluation of multifocal retinal pigment epithelium abnormalities in central serous chorioretinopathy.

The study aims to analyze the 10-year outcomes in "simple" and "complex" central serous chorioretinopathy (CSCR) and to evaluate the longitudinal changes in multifocal retinal pigment epithelium (RPE) alterations. This was a retrospective, multicentric, longitudinal, observational study in patients with a diagnosis of CSCR. Visual acuity outcomes and recurrence characteristics of simple and complex were analyzed. Changes in number of foci of RPE alterations from baseline to last visit were evaluated. Out of 235 eyes screened, the study included 67 eyes of 39 patients (32 males and 7 females) with CSCR (12 simple and 55 complex CSCR). A total of 17 (29.9%) eyes had a unifocal RPE alteration, while the remaining 50 had multifocal RPE alterations at baseline. In eyes with complex CSCR, the 10-year visual acuity was significantly worse (p < 0.001), more number of eyes required treatment (p = 0.03), higher number of RPE alterations were present at baseline and last follow-up (p < 0.001 for both), and number of recurrences were higher (p < 0.001), than simple CSCR. Focal collections of RPE alterations and leakage site corresponded to mid-phase hyper-fluorescent plaques (MPHP) in all eyes. On multivariate regression analysis, a larger area of RPE alteration was associated with a worser 10-year visual acuity (p = 0.004) and complex CSCR was associated with higher number of recurrence (p = 0.005). A different course of disease progression was seen in simple and complex CSCR. An evolution in foci of RPE alterations was seen, from a simple area of MPHP, to focal RPE alterations and finally to leakage.

Cervical Cytology and Histology Correlation as an Analytic Quality Assurance Exercise: Experience from an Accredited Cytology Laboratory.

The performance parameters of cervical cytology in any accredited cytology laboratory requires implementation of quality control exercise, which ensures acceptable performance by a laboratory. This study aims to assess the analytical aspect of quality control measures by evaluating the frequency and accuracy of epithelial abnormalities as detected in cervical Pap smears using histopathologic diagnosis as the gold standard. A retrospective diagnostic test study from 2018 to 2020 was conducted. Out of the total 6000 Pap smears, histopathologic correlation was available in 150 cases in the form of colposcopic-directed biopsy (CDB) and loop electrosurgical excision procedure (LEEP) tissue in 105 cases. The quality control measures analyzed were Atypical Squamous Cell: Squamous Intraepithelial Lesion (ASC: SIL) ratio, cyto-histo correlation, and study parameters like sensitivity, specificity, positive predictive value, and negative predictive value of Pap smears as against CDB and LEEP. 4.5% smears were reported as inadequate, 92.3% as Negative for intraepithelial lesion or malignancy (NILM), followed by epithelial abnormality found in 3.21%. The ASC: SIL ratio was 1.3:1. Concordance rate against CDB was 100% in Squamous cell carcinoma (SCC), 82.35% in high-grade squamous intraepithelial lesion (HSIL), 82% in atypical squamous cells of undetermined significance (ASCUS), 65.6% in low-grade squamous intraepithelial lesion (LSIL), and 50% in Atypical Squamous Cell ,High grade Squamous Intraepithelial Lesion can not be ruled out (ASC-H). Total concordance rate was 84.15%. Sensitivity of Pap smear was 65% for LSIL and 82% for HSIL. Specificity, positive predictive value, and negative predictive value were 63.63%, 90%, and 75%, respectively. Concordance rate was 96% with LEEP. Quality control measures give an insight of performance of any accredited cytology laboratory. This exercise needs to be conducted on a regular basis, so that relevant steps can be taken in case of major discrepancy.

Cytomorphological Variations in Pap Smears amongst Postmenopausal Women Reporting at a Tertiary Care Centre, Tamil Nadu, India

Introduction: In developing countries, cervical cancer is the leading cause of death amongst women. Since women spend one third of their lives in the postmenopausal period, which is most neglected phase, needs a technically simple, non invasive and, cost-effective screening tool for cervical cancer detection and the exact answer is the Pap smear screening test. This simple screening test when performed at regular intervals in post menopausal population, can detect precursor lesions there by reducing cervical cancer morbidity and mortality. Aim: This study was undertaken to evaluate the cytomorphological variations in Pap smears amongst postmenopausal women. Materials and Methods: In this prospective study, a total of 138 satisfactory smears were considered for study amongst 146 postmenopausal women from August 2020 to July 2022 at Bhaarath Medical College and Hospital and then evaluated and categorised based on Bethesda system for reporting cervical cytology 2014. {Reporting elements include specimen type, specimen adequacy, general categorisation, interpretation/result includes general categories of negative for Intraepithelial Lesion or Malignancy (NILM), epithelial cell abnormalities and other malignancies. Results: Out of 138 satisfactory cases, 78.26% (108 cases) 14.5% (20 cases) and 7.24% (10 cases) were diagnosed as of inflammatory/benign conditions, epithelial abnormalities and normal cytology respectively. The mean age for inflammatory/ benign lesions was 57.5 years and majority presenting with postmenopausal bleeding and white discharge. Amongst epithelial abnormalities Atypical Squamous Cells of Undetermined Significance (ASCUS) and Low-grade Squamous Intraepithelial Lesions (LSIL) were commonest. The incidence of ASCUS 7.27% (10 cases), and incidence of LSIL 2.89% (4 cases). The mean age was 57.5 years and majority of patients presented with postmenopausal bleeding and mass per vaginum. Incidence of High grade Squamous Intraepithelial Lesion (HSIL) was 2.17% (3cases), the mean age was 65.5 years and presented with white discharge and postmenopausal bleeding. Incidence of SCC was 2.17% (3 cases) and the mean age was 70.5 years, presented with, postmenopausal bleeding and white discharge. Conclusion: Pap smear is a simple, cheap, safe and gold standard diagnostic tool for screening postmenopausal women for all cervical abnormalities in particular pre-invasive and invasive lesions.

Evaluation of the Cytonucleomorphometric Parameters for Cases Diagnosed as Squamous Cell Abnormality on Conventional Cervico-Vaginal Pap Smears.

The natural history of cervical cancer is unique that it is preceded by a precancerous condition for a long time. Morphometry as a tool can be used in early and accurate diagnosis of these precancerous and cancerous lesions. The present study aims at assessing the utility of cellular and nuclear morphometry in differentiating squamous cell abnormality from benign conditions and also differentiating the categories of squamous cell abnormalities. Forty-eight diagnosed cases of squamous epithelial cell abnormality, that is, 10 cases each of atypical squamous cell of undetermined significance (ASC-US), low-grade squamous intraepithelial lesion (LSIL), high-grade SIL (HSIL), and squamous cell carcinoma (SCC) and eight cases of ASC-H (ASC cannot exclude HSIL), were made the sample population and compared with a control population of 10 cases of negative for intraepithelial lesion or malignancy (NILM). Parameters like nuclear area (NA), nuclear perimeter (NP), nuclear diameter (ND), nuclear compactness (NC), cellular area (CA), cellular diameter (CD), cellular perimeter (CP), and nucleocytoplasmic (N/C) ratio were used. There was a significant difference in the six groups of squamous cell abnormality based on NA, NP, ND, CA, CP, and CD (P < 0.05) using one-way analysis of variance. Nuclear morphometry parameters like NA, NP, and ND were found to be the maximum for HSIL, followed by LSIL, ASC-H, ASC-US, SCC, and NILM groups in decreasing order. The mean CA, CP, and CD were found to be the maximum for NILM, followed by LSIL, ASC-US, HSIL, ASC-H, and SCC in decreasing order. On post hoc analysis, the lesions can be divided into three groups: NILM/normal; ASC-US and LSIL; and ASC-H, HSIL, and SCC, based on N/C ratio. In cervical lesions, holistic parameter of cytonucleomorphometry should be taken rather than taking nuclear morphometry only. N/C ratio is a highly statistically significant parameter that can differentiate between low-grade lesions and high-grade lesions.

DETECTION OF ABNORMAL CERVICAL CYTOLOGY BY LBC (LIQUID BASED CYTOLOGY)

Introduction: Cancer cervix is the fourth most common cancer among women globally. It is responsible for 7.7% of all female cancer death.It takes around 15-20 years in normal immunity patients and 5-10 years in immune-compromised patients to convert precancerous lesions of the cervix into cancer cervix. Cervical cytology plays a very important role in the early diagnosis and management of these precancerous lesions to improve prognosis.quite low Pap smear sensitivity, in the range of 50%, but as low as 20%10 has been reported by some recent meta-analysis studies. LBC was introduced in the mid-1990s as an alternative technique to process cervical smear samples for cytological evaluation.11Studies of the accuracy of liquid-based preparations reports sensitivity of 61-66% and specicity of 82- 91%. A retrospective study was done at a private clinic and pathology lab in Di Materials And Methods: strict Shivpuri (MP) from 1st October 2020to 30th November 2022 on 760 patients. Inclusion criteria:-Patients in the age group of 21-65 years with complaints of abnormal vaginal discharge, intermenstrual bleeding, ostmenopausal bleeding, post-coital bleeding, dyspareunia, foul-smelling discharge, backache, and Lower abdominal pain were included in this study. Sample was taken with Broom, and Cyto-brush from the transformation zone and endocervix and placed in liquid xative buffered methanol solution and send to the pathology lab. Results Most of the patient 42% were between 31-40 years of age group. The majority 48.42% of them were educated up to High school. Most of them 84.07%were from rural back ground, multiparous 86.05%, and married 99.73%. 25% ofwomen visited OPD with complaints of abnormal vaginal discharge followed by menstrual abnormalities in 20.79%, other complaints were, Pain abdomen 16.97%, Vulval itching12.11%, Low back pain 3.95%, Dyspareunia 3.03% and others 5.13%. (Loss of weight and appetite, STD/genital warts) .9.08% women came for routine checkup. The most common nding on per speculum examination was Cervical ectopy in 33.95% .Normal cervix was found in 26.05%. Other ndings on Per-speculum examination were, Hypertrophied cervix, Inammation, Cervical Polyp, UV Prolapse/ cystocele, Cervical Ulcer ,Cervix ushed with the vagina and Cervical growth in. 20%, 9.08%, 4.34% 4.61% 3.03% 0.13% and 0.13% respectively. Out of 760 cases, 61.05% of patients were reported as negative for intraepithelial lesion (NILM). The most common non-neoplastic cytological nding was an inammatory smear in 25.00% of cases. Various Infections were found in 6.18% of cases, and epithelial cell abnormalities were found in 3.42% of cases. The most common abnormalities were ASC-US 0.92% and ASC-H 0.92%, followed by LSIL 0.53%, HSIL 0.66%, AGUS 0.26%, and SCC 0.13%. Bacterial vaginosis 2.37% was the most common infective organism found in cytology followed by Candida albicans 1.97%, Trichomonas vaginalis 1.71%, and Herpes simplex virus 0.13%. The cytology-based screening program is still the mainstay in the earl Conclusion y diagnosis of cancer cervix. To improve diagnostic accuracy as sensitivity and specicity in the eld of cervical cytology, Liquid-based cytology (LBC) is preferred. Its advantages over conventional Pap smears include proper visualization of cellular features due to a reduction in air-drying artifacts and reduced number of unsatisfactory smears. The residual specimens from the LBC technique can be used to detect human papillomavirus DNA through immune-cytochemistry if needed. thus, LBC is recommended as a cervical cytology screening tool to achieve the WHO elimination strategy.

Cervical Epithelial Abnormalities and Associated Factors among HIV-Infected Women in Lagos, Nigeria: A Cytology-Based Study

Introduction: As it may not be feasible to provide cervical cancer screening services to all HIV-infected women in most resource-limited settings, there is a need to identify those who are most at risk. We determined the prevalence, patterns, and associated factors of cervical cytological abnormalities among HIV-infected women in Lagos, Nigeria. Methods: This descriptive cross-sectional study was conducted among HIV-infected women at the adult HIV treatment and colposcopy clinics of a university teaching hospital in Lagos, Nigeria, between October 2018 and December 2019. A cervical sample was collected from each woman to detect cervical cytological abnormalities. Results: Of the 593 enrolled women, cervical cytological abnormalities were present in 40 (6.7%). Most (37.5%) of the women with cytological abnormalities had atypical squamous cells of undetermined significance. Age at coitarche (<20 vs. ≥20 years: adjusted odds ratio, 2.42; 95% confidence interval, 1.21–4.83, p = 0.01) was the only factor that was independently associated with cervical epithelial abnormalities. Conclusion: The prevalence of cervical cytological abnormalities in our study is lower than most previous reports in Africa. Sexual debut at an early age was significantly associated with cytological abnormalities. It is necessary to confirm the findings of this study through a well-designed and adequately powered longitudinal study.

Anterior segment optical coherence tomography in ocular surface tumours and simulating lesions.

This study aims to systematically review the reported literature on the use of anterior segment optical coherence tomography (AS-OCT) in ocular surface tumours and simulating lesions. A systematic literature search was done using PubMed, Scopus, and Web of Science databases between January 2002 and December 2021. On AS-OCT, ocular surface squamous neoplasia typically demonstrate epithelial thickening, epithelial hyperreflectivity, and an abrupt transition between normal and abnormal epithelium. Conjunctival nevi usually show mildly hyperreflective epithelium of normal thickness, internal hyperreflectivity, and intralesional cysts which is the hallmark of this tumour. Primary acquired melanosis presents with normal thickness epithelium, basal epithelial hyperreflectivity, and absence of cysts. Conjunctival melanoma demonstrates hyperreflective normal/thickened epithelium, hyperreflective basal epithelium, internal hyperreflectivity, and absence of intralesional cysts. Conjunctival lymphoma shows homogenous, low-medium reflective subepithelial lesions with smooth borders, and dot-like infiltrates. Benign reactive lymphoid hyperplasia findings are similar to lymphoma but the infiltrates are more hyperreflective compared to lymphoma. Pterygium shows thickened conjunctival epithelium, epithelial hyperreflectivity, and subepithelial wedge-shaped hyperreflective tissue separated from the overlying epithelium by a cleavage plane. Pinguecula demonstrates mildly thickened epithelium and similar findings with pterygium but does not extend beyond the corneal limbus. This review shows that AS-OCT, as a noninvasive tool, has potential uses in the differential diagnosis of ocular surface tumoursand simulating lesions. Major limitations of AS-OCT include limited visualization of the posterior border of thick, keratinized, and pigmented tumours and lack of assessment of large conjunctival tumours in a single cut.

The Role of Ectodysplasin A on the Ocular Surface Homeostasis

Ectodysplasin A (EDA), a ligand of the TNF family, plays an important role in maintaining the homeostasis of the ocular surface. EDA is necessary for the development of the meibomian gland, the lacrimal gland, as well as the proliferation and barrier function of the corneal epithelium. The mutation of EDA can induce the destruction of the ocular surface resulting in keratopathy, abnormality of the meibomian gland and maturation of the lacrimal gland. Experimental animal studies showed that a prenatal ultrasound-guided intra-amniotic injection or postnatal intravenous administration of soluble recombinant EDA protein can efficiently prevent the development of ocular surface abnormalities in EDA mutant animals. Furthermore, local application of EDA could restore the damaged ocular surface to some extent. Hence, a recombinant EDA-based therapy may serve as a novel paradigm to treat ocular surface disorders, such as meibomian gland dysfunction and corneal epithelium abnormalities.

Pigment epithelium and choroid changes in pachychoroid pigment epitheliopathy: A descriptive study

AbstractPurpose: To describe characteristic elementary lesions of retinal pigment epithelium and choroidal vascular parameters determined by swept source optical coherence tomography (SS‐OCT) and OCT‐angiography (OCT‐A) in eyes with pachychoroid pigment epitheliopathy.Methods: Twenty‐seven patients with retinal pigment epithelium (RPE) abnormalities associated to pachychoroid features, with no history or findings indicative of subretinal fluid or soft drusen were evaluated. All eyes underwent comprehensive ophthalmic examination, fundus photography, SS‐OCT and OCT‐A. After binarization of B‐scan images with ImageJ Software, the choroidal vascularity index (CVI), the choroidal vascularity proportion (CVP) and flow voids area were calculated.Results: A total of 27 eyes of 23 patients, 19 of whom were male (70.37%), with a mean age of 59.11 ± 12.76 years were enrolled in this study. We detected six different types of RPE lesions: focal disruption in ellipsoid and interdigitation zones in 18 eyes (66.66%), RPE elevation with microbreak appearance in 12 eyes (44.44%), RPE thickening in 10 eyes (37.03%), small pigment epithelium detachment in seven eyes (25.92%), RPE spike in five eyes (18.51%) and outer nuclear layer thinning in five eyes (18.51%). The subfoveal choroidal thickness (SFCT) was 399, 78 ± 88, 13 μm. The mean inner choroidal thickness was 87.18 ± 36.67 μm. The CVI was 65.28 ± 3.35%. The CVP was 59.10 ± 0.58% in the choriocapillaris and 59.69 ± 1.42% in the Haller layer. The total choriocapillaris flow void area was 39.87 ± 1.21%.Conclusions: SS‐OCT and OCT‐A are valuable diagnostic tools to characterize pigment epithelium and choroidal changes in PPE eyes.

Clinical Association and Detection of Cervical Cancer with Pap Smear Screening Test

Aim: To find the clinical association of the cervical cancer with pap smear test. Study Design: Prospective study Place and Duration of Study: Department of Obstetrics &amp; Gynaecology, AJK Medical College Muzaffarbad Azad Kashmir from 1st January 2021 to 30th June 2022. Methodology: Five hundred women were screened who were between 20-55 years of age. Sampling was performed by ecto-cervix through wooden Ayre spatula rotation at 360 degrees. The sample was preserved in a formalin jar and sent for glass slide formation. Cytopathological examination presented lesions as negative intraepithelial neoplasia as well as epithelial-cell abnormalities including squamous in addition to glandular cells. Results: The mean age was 41.5±5.6 years. The epithelial abnormalities were diagnosed in 6% of low grade squamous-intraepithelial lesion cases and 1% in high grade squamous intra-epithelial lesion through pap smear. No case of squamous cell carcinoma was identified while 40% showed inflammation presence Most of the females within 31-40 years were having normal cervical morphology while 36%cases inflammation was noticed in 21-30 years of age. Low grade squamous-intraepithelial lesion was noticed in 63.3% of the women within an age group of 14-50 years while high grade squamous intra-epithelial lesion L was observed within 60% of the similar age women. Majority (148.45%) of the women had white discharge from vaginum followed by cervical erosion seen in 19.21% of the cases Conclusion: Pap smear is a highly specific and efficient test for determining pre-cancerous cervical lesions as well as cervical cancers. Key words: Association, Detection, Cervical cancer Pap smear screening test

The possible pathogenesis of macular caldera in patients with North Carolina macular dystrophy

BackgroundThis study provides a detailed description of a Chinese family with North Carolina macular dystrophy (NCMD) and explores its possible pathogenesis.MethodsFive individuals from a three-generation family underwent general ophthalmic examination, multi-imaging examinations and visual electrophysiology examinations when possible. Genetic characterization was carried out by target region sequencing and high-throughput sequencing in affected patients.ResultsDespite severe fundus changes, patients had relatively good visual acuity. Genetic analysis showed that affected patients had PRDM13 gene duplication and heterozygous mutations of the ABCA4 gene. Optical coherence tomography (OCT) showed an abnormal retinal pigment epithelium (RPE) layer in patients with grade 2 lesions, while the neurosensory retina was relatively normal. In grade 3 patients, RPE and choroid atrophy were greater than that of the neurosensory retina, showing concentric atrophy.ConclusionsRPE and choroidal atrophy were found to play an important role in the development of macular caldera.

Pathophysiological conditions induced by SARS-CoV-2 infection reduce ACE2 expression in the lung.

SARS-CoV-2 infection causes a variety of physiological responses in the lung, and understanding how the expression of SARS-CoV-2 receptor, angiotensin-converting enzyme 2 (ACE2), and its proteolytic activator, transmembrane serine protease 2 (TMPRSS2), are affected in patients with underlying disease such as interstitial pneumonia will be important in considering COVID-19 progression. We examined the expression of ACE2 and TMPRSS2 in an induced usual interstitial pneumonia (iUIP) mouse model and patients with IPF as well as the changes in whole-lung ACE2 and TMPRSS2 expression under physiological conditions caused by viral infection. Histopathological and biochemical characteristics were analyzed using human specimens from patients with IPF and precision-cut lung slices (PCLS) from iUIP mouse model showing UIP with honeycombing and severe fibrosis after non-specific interstitial pneumonia. ACE2 expression decreased with acute lung inflammation and increased in the abnormal lung epithelium of the iUIP mouse model. ACE2 is also expressed in metaplastic epithelial cells. Poly(I:C), interferons, and cytokines associated with fibrosis decreased ACE2 expression in PCLS in the iUIP model. Hypoxia also decreases ACE2 via HIF1α in PCLS. Antifibrotic agent, nintedanib attenuates ACE2 expression in invasive epithelial cells. Patients with IPF are at a higher risk of SARS-CoV-2 infection due to the high expression of ACE2. However, ACE2 and TMPRSS2 expression is decreased by immune intermediaries, including interferons and cytokines that are associated with viral infection and upon administration of antifibrotic agents, suggesting that most of the viral infection-induced pathophysiological responses aid the development of resistance against SARS-CoV-2 infection.

Prevalence of Age-Related Macular Degeneration in the US in 2019

Age-related macular degeneration (AMD) is a leading cause of vision loss and blindness. AMD prevalence has not been estimated for the US in over a decade and early-stage AMD prevalence estimates are scarce and inconsistently measured. To produce estimates of early- and late-stage AMD prevalence overall and by age, gender, race and ethnicity, county, and state. The study team conducted a bayesian meta-regression analysis of relevant data sources containing information on the prevalence of AMD among different population groups in the US. We included data from the American Community Survey (2019), the National Health and Nutrition Examination Survey (2005-2008), US Centers for Medicare & Medicaid Services claims for fee-for-service beneficiaries (2018), and population-based studies (2004-2016). We included all relevant data from the US Centers for Disease Control and Prevention's Vision and Eye Health Surveillance System. The prevalence of early- and late-stage AMD was estimated and stratified when possible by factors including county, age group, gender, and race and ethnicity. Data analysis occurred from June 2021 to April 2022. The prevalence of early- (defined as retinal pigment epithelium abnormalities or the presence of drusen 125 or more microns in diameter in either eye) and late-stage (defined as choroidal neovascularization and/or geographic atrophy in either eye) manifestations of AMD. This study used data from nationally representative and local population-based studies that represent the populations in which they were conducted. For 2019, we estimated that there were 18.34 million people 40 years and older (95% uncertainty interval [UI], 15.30-22.03) living with early-stage AMD, corresponding to a crude prevalence rate of 11.64% (95% UI, 9.71-13.98). We estimated there were 1.49 million people 40 years and older (95% UI, 0.97-2.15) living with late-stage AMD, corresponding to a crude prevalence rate of 0.94% (95% UI, 0.62-1.36). Prevalence rates of early- and late-stage AMD varied by demographic characteristics and geography. We estimated a higher prevalence of early-stage AMD and a similar prevalence of late-stage AMD as compared with earlier studies. State-level and county-level AMD estimates may help guide public health practice.

Routine Pap smear screening in Pakistan: A current perspective.

Routine Pap smear screening in Pakistan: A current perspective.

Cytological and histological examination of the endometrium based on menstruation age groups

Introduction: Abnormal uterine bleeding (AUB) is one of the most common symptoms of endometrial cancer that necessitates endometrial biopsy. Objectives: This study aimed to compare the cytological and histological findings in endometrial specimens among women with AUB in three different menstrual groups (pre-menopause, perimenopause, and post-menopause) and to evaluate the statistical accuracy of cytology compared to histopathology (gold standard). Patients and Methods: This descriptive study was conducted on 78 women with AUB admitted to the gynecology and obstetrics unit of Shahid Beheshti hospital, Isfahan, Iran from 2018 to 2020. Patients were divided into three groups (pre-menopause, perimenopause, and post-menopause) based on their menstrual condition. Samples were obtained using endometrial curettage and cytobrush and were analyzed by two surgical pathologists. The results were described in four categories: negative, atypical endometrial cells of undetermined significance (AEC-US), atypical endometrial cells encompassing the spectrum of precursors to the malignant endometrial tumor (AEC-PEMT), and positive. Results: Out of 78 samples, 36 (46.2%) were reported negative for epithelial abnormality, 15 (19.2%) were AEC-US, 9 (11.5%) were AEC-PEMT, and 18 (23.1%) were positive for epithelial lesions. There was a significant association between cytological findings and menstrual groups (P = 0.004). Positive results were more frequently reported in the post-menopausal group, whereas negative results were most common in the pre-menopause group. The sensitivity and specificity of cytological evaluation in the pre-menopause, perimenopause and post-menopause groups were 100% and 95% (accuracy: 100%, 95% CI: 0.94-1), 77% and 53%, (accuracy: 62%, 95% CI: 0.40-0.85), and 100% and 34% (accuracy: 41%, 95% CI: 0.20-0.61), respectively. Conclusion: Cytological examination of the endometrium demonstrated high sensitivity in the pre-menopausal and post-menopausal women with AUB and can therefore be used as an efficient and valuable method of screening for endometrial neoplasia.