Biomedical semantic text summarizer.

BACKGROUND: Text summarization is a challenging problem in Natural Language Processing, which involves condensing the content of textual documents without losing their overall meaning and information content, In the domain of bio-medical research, summaries are critical for efficient data analysis and information retrieval. While several bio-medical text summarizers exist in the literature, they often miss out on an essential text aspect: text semantics. RESULTS: This paper proposes a novel extractive summarizer that preserves text semantics by utilizing bio-semantic models. We evaluate our approach using ROUGE on a standard dataset and compare it with three state-of-the-art summarizers. Our results show that our approach outperforms existing summarizers. CONCLUSION: The usage of semantics can improve summarizer performance and lead to better summaries. Our summarizer has the potential to aid in efficient data analysis and information retrieval in the field of biomedical research.

Interferon-induced protein 44 (IFI44) and interferon regulatory factor 4 (IRF4) gene expression in rheumatoid arthritis.

BACKGROUND AND OBJECTIVES: The type I interferon (IFN) signature has been found to be overactivated in many systemic autoimmune diseases. This may be explained by impaired regulation of interferon-stimulated genes (ISGs) as well as interferon-induced protein 44 (IFI44) expression via their regulatory mechanisms via interferon regulatory factors (IRFs). PATIENTS AND METHODS: This case-control study includes two groups: 50 RA patients and 50 healthy controls. The quantification of IFI44 and IRF4 expression levels by the real-time PCR technique was estimated. Disease Activity Score-28 (DAS-28) was estimated for RA patients only. RESULTS: Among the RA patients, there were statistically significant increased ESR, CRP, TLC, RF, and anti-CCP levels (p value < 0.001) and significant increased expression of the IFI44 and IRF4 genes (p value < 0.001). There was a significant positive correlation between the IFI44 and IRF4, and there was a significant correlation between both and ESR and anti-CCP among RA patients. At a cutoff point of 1.95, IFI44 shows higher sensitivity and specificity values than IRF4 for the diagnosis of RA. CONCLUSION: IFI44 was more sensitive for RA diagnosis than IRF4. IFI44 and IRF4 overexpression could be promising predictors of RA diagnosis and might become useful clinical tools to guide therapeutic strategies.

Prevalence of pelvic floor dysfunction: a Saudi national survey.

BACKGROUND: Pelvic Floor Dysfunction (PFD) is a global health problem affecting millions of women worldwide and comprises a broad range of clinical dysfunctions such as urinary incontinence (UI), fecal incontinence (FI), pelvic organ prolapse (POP) vaginal laxity (VL), vaginal wind (VW), and overactive bladder (OAB). This study aims to estimate the prevalence of PFD among Saudi women attending primary health care centers (PHCCs) across 13 regions of Saudi Arabia and their characteristics along with associated factors. METHODS: A cross-sectional study was conducted on 2,289 non-pregnant women. The probability population proportional sampling technique was employed followed by a convenient sampling technique to recruit eligible women. Types of PFD were assessed using a self-administered electronic questionnaire. Pelvic Floor Distress Index (PFDI-20) was used to assess the primary study outcomes (FI, VL, POP, VW, and OAB). A multivariate logistic regression model was used to identify independent associated factors for PFD. RESULTS: The findings showed that 830 women (36.3%) had any type of UI. Stress UI affected726 (31.7%) women, whilst 525 women (22.9%) had urge UI. VL occurred in 505 women (22.1%), whilst POP occurred in 536 women (23.4%). VW occurred in 733 participants and (32%) 1238 women (54.1%) had OAB. The multivariate analysis suggested that region, location, parity, and assisted birth were significantly associated with UI, VL, FI and PFD (P < 0.001). CONCLUSION: PFD is a common condition among Saudi women. UI, VL, VW, OAB, POP and FI increased consistently among urban women with increased age, greater parity, assisted birth, and post-menopausal status.

Does low-dose gapapentin reduce opioid use postoperatively?: A randomized controlled trial in women undergoing reconstructive pelvic surgery.

INTRODUCTION AND HYPOTHESIS: Pre-emptive gabapentin has been shown to decrease postoperative pain in abdominal and vaginal hysterectomy. However, the effect of pre-emptive low-dose gabapentin has not been studied in vaginal hysterectomy combined with concomitant pelvic reconstruction. METHODS: A randomized double-blind placebo-controlled trial assessed all women seen for symptomatic prolapse requiring vaginal hysterectomy with concomitant pelvic reconstruction with or without midurethral sling. Gabapentin dosing was 600 mg (<65 years) or 300 mg (>65 years). The primary outcome was reduction in opioid consumption in the first 24 h after surgery. Secondary outcomes included sedation and prolongation of recovery room stay. Sample-size calculations indicated a need for 22 participants/group. Student's t test was used to compare differences in oral administration of morphine equivalents in the first 24 h postoperatively, time from end of surgery to leaving the recovery room, and length of recovery room stay. Mann-Whitney U test was used to compare visual analog scale (VAS) scores for anxiety, drowsiness/sedation, pain, and nausea. RESULTS: Twenty-one patients received gabapentin and 26 a placebo capsule. Groups were similar with respect to age, menopause status, parity, American Society of Anesthesiologist (ASA) class, and concomitant procedures. There were also no significant differences between groups in opioid requirements within the first 24 h after surgery, time from end of surgery to leaving the recovery room, length of time in recovery room, or VAS scores. CONCLUSIONS: Pre-emptive gabapentin at our institutional low doses did not significantly affect postoperative pain and opioid requirements in women undergoing vaginal hysterectomy with concomitant reconstruction. TRIAL REGISTRATION: www.clinicaltrials.gov , #NCT02999724.

A Streamlined Surgical Approach to Laparoscopic Sacrocolpopexy for Post-Hysterectomy Vault Prolapse.

OBJECTIVE: To describe a streamlined laparoscopic sacrocolpopexy (LSCP) surgical technique in women with post-hysterectomy vault prolapse and to evaluate the functional outcomes, complication rates, and surgical morbidity within our centre. METHODS: We retrospectively reviewed the charts of 180 patients scheduled for LSCP between November 2002 and May 2013 in a tertiary care centre. Patients were followed-up at six weeks, six months, and yearly after surgery. We reviewed patient demographics, preoperative and postoperative symptoms, and perioperative variables. Objective success of the surgery was defined as having a less than stage 2 vault prolapse, and subjective success was defined as the absence of bulge or prolapse symptoms. Success and complication rates were calculated. RESULTS: Of the 180 patients who underwent surgery, 144 patients underwent the procedure as planned and had at least six months of follow-up. At the last follow-up visit, 133 of these 144 patients (92.4%) were free of prolapse symptoms. Several bladder and bowel symptoms showed significant improvement. Anatomical success of vault support was achieved in 140 of 144 patients (97.2%), and 119 patients (82.6%) had no prolapse beyond the hymen. Early complications (within the first 6 weeks) occurred in 8.3% of 162 patients with limited outcome data, and late complications (after 6 weeks) occurred in 11.5% of the 144 patients with long-term data. There were no cystotomies or mesh exposures. CONCLUSION: At an average of 32 months, this cohort of patients had low prolapse recurrence rates and no reports of cystotomy or mesh erosion. The abridged LSCP technique, as practised in our institution, is safe and effective in the surgical management of post-hysterectomy vault prolapse.

Morbidity with total laparoscopic and laparoscopically assisted vaginal hysterectomy.

We evaluated the operative and postoperative morbidity among 103 women who underwent total laparoscopic hysterectomy and 107 others who underwent laparoscopically assisted vaginal hysterectomy. Blood loss was significantly greater in the assisted vaginal hysterectomy group (178.0 ± 12.1 ml) than in the total hysterectomy group (130.2 ± 10.7 ml) (p < 0.001). Despite higher uterine weight in the total hysterectomy group, the operative time of both techniques was similar. The complications of both hysterectomies were also comparable. The results from our study suggest that the complication rates of laparoscopically assisted vaginal hysterectomy and total hysterectomy are similar. However, laparoscopically assisted vaginal hysterectomy is associated with increased blood loss.

Evaluation of NLRP3 (rs10754558) and PTPN22 (1858C/T) (rs2476601) Functional Polymorphisms in Psoriasis Susceptibility in Egypt.

BACKGROUND: Psoriasis is a complex autoimmune multifactorial disease induced by interaction of environmental and genetic factors. This research aimed to clarify the association of NLRP3 (rs10754558) and PTPN22 (1858C/T) (rs2476601) polymorphisms with susceptibility to psoriasis. METHODS: This case-control study involved 150 patients diagnosed with psoriasis and 100 age- and gender-matched apparently healthy individuals. NLRP3 (rs10754558) polymorphism was done by real time PCR and PTPN22 1858C/T (rs2476601) genotype was identified by tetra-primer amplification refractory mutation system-polymerase chain reaction (PCR) method. RESULTS: The genotypes distribution of NLRP3 (rs10754558) were significantly associated with psoriasis (p<0.0001). Whereas for PTPN22 (1858C/T) (rs2476601), no significance was found (p=0.09). NLRP3 (rs10754558) GC genotype revealed a significant association with psoriasis (p<0.0001), mainly among male (p=0.004) patients with mild psoriasis (p=0.001) and affected extremities (p=0.0001). CONCLUSION: We can conclude that the NLRP3 (rs10754558) GC genotype may play a role in psoriasis susceptibility among male Egyptian populations with affected extremities. Future studies must evaluate its role in the prevention or the treatment of psoriasis.

Value of Thrombomodulin as a Marker for Sepsis in Critically Ill Children.

OBJECTIVE: Pediatric sepsis is altered organ function in critically ill children and a main etiology of mortality for children. Therefore, the authors aimed to assess the role of serum thrombomodulin as valuable biomarker in the diagnosis and prognosis of sepsis in acutely ill pediatrics in the intensive unit. METHODS: This prospective clinical study conducted on 140 acutely ill patients admitted to the Pediatric Intensive Care Unit (PICU) of Menoufia University Hospital and 50 apparently healthy controls from October 2018 through September 2019. All included children were subjected to clinical examination and the Pediatric Risk of Mortality (PRISM) and Pediatric Index of Mortality II (PIM II) scores were calculated. Serum thrombomodulin was measured for both patients and the control group upon admission. The children were followed for a period of 30 d. RESULTS: Serum thrombomodulin level was increased among all the patients and those with systemic inflammatory response syndrome (SIRS), sepsis and severe sepsis compared with controls (p < 0.001). Furthermore, serum thrombomodulin was higher in patients who died than who survived (p = 0.005). Thrombomodulin had area under Receiver Operating Characteristic Curve (AUC) =0.915 for predicting sepsis, whereas C-reactive protein had AUC = 0.789. According to the prognosis, thrombomodulin had AUC = 0.711 for predicting mortality whereas PRISM and PIM scores had AUC = (0.918, 0.960) respectively. CONCLUSIONS: Serum thrombomodulin is a promising marker for pediatric sepsis. The data showed that serum thrombomodulin had a valuable role in diagnosis of sepsis early in critically ill pediatrics.

Inverse relationship between the level of miRNA 148a-3p and both TGF-ß1 and FIB-4 in hepatocellular carcinoma.

BACKGROUND AND AIM: Hepatocellular carcinoma (HCC) is a major health burden globally. Dysregulation of miRNA 148a-3p is engaged in carcinogenesis. TGF-ß is a profibrogenic cytokine. This study assesses the expression level of miRNA 148a-3p and its relationship with serum TGF-ß1 and fibrosis index based on four factors (FIB-4) in Egyptian patients with HCV-associated HCC. SUBJECTS: and Methods: The study included 72 HCC patients with HCV, 48 HCV cirrhotic patients, and 47 healthy controls. Serum TGF-ß1 was assessed by ELISA and the expression of miRNA 148a-3p was measured by RT-PCR. RESULTS: Patients with HCC had lower plasma miRNA 148a-3p, higher serum TGF-ß1, and higher FIB-4 levels than patients with cirrhosis and controls. miRNA 148a-3p discriminated HCC either from control (AUC: 0.997, 95.83% sensitivity, 85.11% specificity) or from cirrhosis (AUC: 0.943, 91.67% sensitivity, 81.25% specificity). Moreover, it distinguished metastatic from nonmetastatic patients (AUC: 0.800, 88.89% sensitivity, 60.0% specificity). The decreased miRNA 148a-3p and the increased TGF-ß1 levels were related to distant metastasis, multinodular lesions, advanced TNM stage, and BCLC score (C). A negative correlation between miRNA 148a-3p and each of FIB-4 and TGF-ß1 was detected. The decreased miRNA 148a-3p was associated with poor overall survival and poor progression-free survival. CONCLUSION: An inverse relationship between miRNA 148a-3p and both TGF-ß1 and FIB-4 was observed, which could be involved in HCC pathogenesis. Moreover, this miRNA is a potential diagnostic and prognostic biomarker for HCC.

Proposal of a novel predictive radiological method to assess the possibility of closed reduction in late presenting developmental dysplasia of the hip: the femoro-acetabular zones.

Late presentation of developmental dysplasia of the hip (DDH) remains a major orthopedic problem. However, existing management is not standardized and is highly surgeon dependent. The theory behind femoro-acetabular zones (FAZ) system is to find a relationship between acetabular maturity and severity of dislocation in one hand, and the outcome of closed reduction, on the other hand in late presenting cases. A retrospective study was performed on children with untreated DDH that underwent closed treatment. Our series consisted of 65 hips; mean patient age was 24 months (range: 9-30 months) with a minimum follow-up of 3 years. FAZ classification was applied to the pre-reduction pelvic radiograph, while the results were evaluated according to Severin's scoring system. Overall, 37 of 65 hips (57%) achieved a satisfactory outcome (Severin I and II), while 22 hips (33%) were found to be unsatisfactory (Severin III). Six hips (10%) needed an open reduction. FAZ expressed a simple and reliable classification in predicting the success of closed reduction. This novel X-ray-based classification system can easily predict patients with DDH in whom a closed reduction is likely to succeed and defer patients with higher grades to surgical intervention. Yet, its validity has to be verified in larger cohort studies and directly compared to the established International Hip Dysplasia Institute classification.

Predisposing factors and treatment outcome of different stages of intrauterine adhesions.

OBJECTIVE: To evaluate the predisposing factors and treatment outcomes of different stages of intrauterine adhesions. METHODS: We examined the medical records of women with Asherman syndrome seen during the period of January 2000 to December 2007 at two McGill University teaching hospitals in Montreal. Data retrieved included patient's age, menstrual pattern, fertility, factors related to intrauterine adhesions, and rates of amenorrhea and pregnancy at 12-month follow-up. The diagnosis was established by hysteroscopic examination. After confirmation of the diagnosis, the intrauterine adhesions were removed using a standard technique with a loop electrode and glycine 1.5% as distension medium. In cases with severe intrauterine adhesions, abdominal ultrasound was used to ensure that the uterine cavity was not breached. At the completion of each procedure a number 16 Foley catheter with 5 mL of normal saline in the bulb was placed in the uterine cavity and removed five days later. In addition, vaginal estradiol 17 beta was administered three times daily for four weeks with oral progesterone administered in the fourth week of estradiol treatment. RESULTS: Of 65 patients, we identified 24 with stage I intrauterine adhesions (36.9%), 30 with stage II (46.2%), and 11 with stage III (16.9%). The main reasons for referral were infertility (stage I 75%, stage II 73.3%, stage III 27.3%), and amenorrhea (stage I 25%, stage II 23.3%, stage III 72.7%). The main predisposing factor was dilatation and curettage. Of 40 patients with intrauterine adhesions related to early pregnancy curettage, 18 patients (45%) had stage I adhesions, 17 (42.5%) had stage II, and five (12.5%) had stage III. This contrasted with 10 patients who had peripartum curettage, in whom six (60%) developed stage III adhesions (P = 0.004). The rate of amenorrhea was 32.3% before adhesiolysis and 9.2% after. Among 43 women who wished to conceive, the pregnancy rate was 51.2% and the live birth rate 32.6%. CONCLUSION: The main reasons for referral of women with intrauterine adhesions are infertility and amenorrhea. Postpartum curettage leads to severe adhesions. The rates of pregnancy and term pregnancy among this selected group of women were similar regardless of the severity of adhesions.

Toll-Like Receptor 9 (TLR9) Gene C/T (rs352140) Polymorphisms in Adult Primary Immune Thrombocytopenia.

Immune thrombocytopenia (ITP) is an autoimmune disease characterized by low platelet count and increased bleeding risk. The initial event(s) leading to antiplatelet autoimmunity remains unclear. Toll-like receptors (TLRs) are the most well-characterized pattern recognition receptors and are a transmembrane protein coded by the Toll genes family. In addition to their protective role in immunity, it is also becoming clear that TLRs exhibit homeostatic roles. Toll-like receptors play potential roles in the development of disease and its maintenance. The objective of this study is to evaluate the distribution of TLR9 gene C/T (rs352140) polymorphisms and its possible association with clinicopathological finding in Egyptian adult primary ITP. This study was carried out at Internal Medicine Department, Menoufia University Hospital, Egypt, from August 2018 to January 2020. Eighty adults (≥ 18 years) were enrolled in the study; 40 patients with primary ITP and 40 healthy individuals as controls. Identification of the TLR9 C/T (rs352140) polymorphic variant was performed by polymerase chain reaction-restriction fragment length polymorphism. In our study, we excluded any other causes of secondary ITP. Distribution of the TLR9 C/T genotypes did not exhibit significant deviation between patients and controls. There was no significant difference between studied groups as regards allele (C and T) frequency. There was no significant difference regarding TLR9 gene C/T (rs352140) polymorphisms between Egyptian adult with primary ITP and controls. TLR9 gene C/T (rs352140) polymorphisms have no relation to any of the clinicohematological variables in primary ITP in Egyptians.

The Human Genetic Variants CYP2J2 rs2280275 and EPHX2 rs751141 and Risk of Diabetic Nephropathy in Egyptian Type 2 Diabetic Patients.

BACKGROUND: Diabetic nephropathy (DN), the primary driver of end-stage kidney disease, is a problem with serious consequences for society's health. Single nucleotide polymorphisms (SNPs) can define differences in susceptibility to DN and aid in development of personalized treatment. Giving the importance of epoxyeicosatrienoic acids (EETs) in kidney health, we aimed to study the association between two SNPs in the genes controlling synthesis and degradation of EETs (CYP2J2 rs2280275 and EPHX2 rs751141 respectively) and susceptibility of type 2 diabetes mellitus (T2DM) patients to develop DN. PATIENTS AND METHODS: Two hundred subjects were enrolled and categorized into three groups: group I (80 T2DM patients with DN), group II (60 T2DM patients without DN) and group III (60 healthy controls). Urea, creatinine, albumin/creatinine ratio (ACR), and eGFR were measured for all participants. Genotyping of CYP2J2 rs2280275 and EPHX2 rs751141 was done by real time PCR. RESULTS: There was no significant difference between the studied groups regarding CYP2J2 rs2280275. In contrast, EPHX2 rs751141 was associated with increased risk of DN under a dominant model (GG vs GA+AA: OR=0.375; 95% CI (0.19-0.75), P=0.006) in unadjusted model and after adjustment for age and sex (OR=0.440; 95% CI (0.21-0.92), P=0.029), recessive model (AA vs GG+GA: OR=0.195; 95% CI (0.05-0.74), P=0.017) and additive model (GA vs GG+AA): OR=0.195; 95% CI (0.05-0.74), P=0.017). CONCLUSION: CYP2J2 rs2280275 was not associated with DN predisposition. However, EPHX2 rs751141 could be a genetic marker for development and progression of DN among Egyptian T2DM patients.

Correlates of vaginal laxity symptoms in women attending a urogynecology clinic in Saudi Arabia.

OBJECTIVE: To evaluate the prevalence of vaginal laxity (VL) and its correlates in a cohort of women attending a urogynecology clinic in a tertiary referral center in Saudi Arabia. METHODS: In this retrospective study, demographic information, clinical characteristics, and POP-Q system measurements for women attending the King Fahad Medical City Urogynecology Clinic (January 2013 to April 2015) were analyzed. Women with and without VL were compared across these variables. RESULTS: Out of 376 women attending the clinic for various reasons, 135 (35.9%) reported VL. VL was more common in younger women (P<0.001). Parity, menopausal status, and diabetes were not associated with this symptom. A history of cesarean delivery was protective (aOR 0.39; 95% CI, 0.17-0.90). A bulge symptom and "vaginal wind" were predictors (aOR 3.25; 95% CI, 1.46-7.23 and aOR 15.48; 95% CI, 6.93-34.56, respectively). There was no correlation between VL and POP-Q measurements. VL was not associated with the presence of clinically significant prolapse (stage 2-4), compared with nonsignificant prolapse (stage 0-1) (P=0.869, P=0.152, and P=0.783 for anterior, posterior, and central vaginal compartment, respectively). CONCLUSIONS: In this cohort, VL was common, more prevalent in younger women, and had poorly defined clinical correlates.

Causes and management of urogenital fistulas. A retrospective cohort study from a tertiary referral center in Saudi Arabia.

OBJECTIVES: To reviewe the etiology and management of urogenital fistulas at a tertiary care referral center. METHODS: We retrospectively identified all patients with urogenital fistula referred to the King Fahad Medical City, Riyadh, Saudi Arabia, between January 2005 and July 2016 from electronic records. We collected data on age, parity, etiology and type of fistula, radiologic findings, management, and outcome. Results: Of the 32 patients with urogenital fistula identified, 17 (53.1%) had vesicovaginal fistula. The mean parity was 5.9 (0-15). Obstetric surgery was the most common etiology, accounting for 22 fistulas (68.8%). Twenty of these (90.9%) were complications of cesarean delivery, of which 16 (80%) were repeat cesarean delivery. Forty surgical repair procedures were performed: 20 (50%) via an abdominal approach, 11 (27.5%) via a vaginal approach, 7 (17.5) via a robotic approach, and 2 (5%) using cystoscopic fulguration. The primary surgical repair was successful in 23 patients (74%), the second repair in 5 (16.1%), and the third repair in one (3.1%). One fistula was cured after bladder catheterization, and 2 patients are awaiting their third repair. Conclusion: Unlike the etiology of urogenital fistulas in other countries, most fistulas referred to our unit followed repeat cesarean delivery: none were caused by obstructed labor, and only a few occurred after hysterectomy. Most patients were cured after the primary surgical repair.

Fowler's syndrome post oocyte retrieval for intracytoplasmic sperm injection.

OBJECTIVE: To report a case of Fowler's syndrome after oocyte retrieval. DESIGN: Case report. SETTING: Tertiary referral center, King Fahad Medical City. PATIENTS: A 23-year-old nulligravida with polycystic ovarian syndrome and primary infertility underwent oocyte retrieval for intracytoplasmic sperm injection (ICSI), and developed Fowler's syndrome (FS). INTERVENTIONS: Intermittent self-catheterization, insertion of sacral neuromodulator (SNM). MAIN OUTCOME MEASURES: Restoration of normal voiding. RESULTS: Immediate resolution of patient's symptoms after installation of SNM. CONCLUSIONS: Fowler's syndrome, although rare, may occur post routine oocyte retrieval; Successful restoration of voiding and resolution of symptoms is possible with SNM installation in similar patients.

Clinical implication of thiopurine methyltransferase polymorphism in children with acute lymphoblastic leukemia: A preliminary Egyptian study.

BACKGROUND: 6-mercaptopurine (6-MP) is an essential component of pediatric acute lymphoblastic leukemia (ALL) maintenance therapy. Individual variability in this drug-related toxicity could be attributed in part to genetic polymorphism thiopurine methyltransferase (TPMT). AIM: To investigate the frequency of common TPMT polymorphisms in a cohort of Egyptian children with ALL and the possible relation between these polymorphisms and 6-MP with short-term complications. MATERIALS AND METHODS: This study included 25 children. Data related to 6-MP toxicity during the maintenance phase were collected from the patients' files. DNA was isolated and genotyping for TPMT G460A, and A719G mutations were performed by polymerase chain reaction-restriction fragment length polymorphism. RESULTS: Twenty (80%) of the included 25 patients had a polymorphic TPMT allele. TPMT*3A was the most frequent (14/25, 56%), 8 patients were homozygous and 6 were heterozygous. TPMT*3C mutant allele was found in 4 patients (16%) in the heterozygous state while 2 patients (8%) were found to be heterozygous for TPMT*3B mutant allele. TPMT mutant patients, especially homozygous, were at greater risk of 6-MP hematological toxicity without significant difference regarding hepatic toxicity. CONCLUSIONS: TPMT polymorphism was common among the studied group and was associated with increased risk of drug toxicity. A population-based multi-center study is required to confirm our results.

Patella dislocation association with drop foot.

All limb injuries should be examined with complete documentation of neurovascular assessment as they are often ignored in the busy emergency department setup. This may lead to delay in such diagnosis during the treatment of limb injuries at a follow-up in orthopaedic clinics. Early diagnosis can help orthopaedic team to investigate and start treatment which may help in the recovery of such neurovascular injuries. We report a case of missed neurovascular assessment in the emergency department on a patellar dislocation of a young person leading to foot drop and sensory numbness in the deep peroneal nerve distribution, which improved completely within three and a half months with conservative treatment. This is also the first reported case of foot drop in association with patellar dislocation.

Association analysis of genetic variations of eNOS and α2ß1 integrin genes with type 2 diabetic retinopathy.

BACKGROUND: Diabetic retinopathy (DR) is classically defined as a microvasculopathy that primarily affects the small blood vessels of the inner retina as a complication of diabetes mellitus. It has been suggested that nitric oxide (NO) and α2ß1 integrin (a platelet receptor for collagen) play an important role in the pathogenesis of microvascular complications in DR. AIM: The aim of this study was to investigate the association of two candidate genes involved in the regulation of retinal vasculature, endothelial nitric oxide synthase (eNOS) and α2ß1 integrin (ITGA2) genes, with the development of DR in Egyptian patients with type 2 diabetes mellitus and to investigate whether genetic variants will affect the type of retinopathy (proliferative or nonproliferative). METHODS: In this study, 70 patients were enrolled and categorized into two groups: (1) a DR group consisting of 50 patients with DR, which was further subclassified into 25 patients with nonproliferative DR (NPDR group) and 25 patients with proliferative DR (PDR group) and (2) a diabetes without retinopathy (DWR) group, comprising 20 patients with type 2 diabetes of more than 10 years' duration who showed no signs of DR. Associations of the genetic polymorphisms of eNOS (G894T) and ITGA2 (BgI II) were studied. Polymerase chain reaction-restriction fragment length polymorphism analysis was performed for all samples to evaluate the genotypes and correlate with the phenotype of the disease. RESULTS: The allele frequencies of both polymorphisms showed considerable differences between patients with and without DR. The GG genotype of G894T polymorphism of eNOS was associated with a 9.75-fold increased risk of DR (95% confidence interval 1.7-55.4) and the genotype ITGA2 BgI II (+/+) was associated with a 10.1-fold increased risk of DR (95% confidence interval 1.8-57.9), while the α2ß1 integrin gene polymorphism of genotype distribution of both eNOS and ITGA2 polymorphisms did not differ significantly between the proliferative and nonproliferative DR groups. CONCLUSION: A significant association between the G894T polymorphism of eNOS and BgI II polymorphism of ITGA2 genes and DR was observed, while there was no association between the genetic variants of those two polymorphisms and the type of retinopathy.